gitextract_wq208o93/ ├── 2020/ │ ├── Combined Divisions/ │ │ ├── 621 Div 1 + 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Cow and Fields Explanation.txt │ │ │ │ ├── Cow and Friend Explanation.txt │ │ │ │ ├── Cow and Haybales Explanation.txt │ │ │ │ ├── Cow and Message Explanation.txt │ │ │ │ └── Cows and Treats Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Cow and Fields.cpp │ │ │ ├── Cow and Haybales.cpp │ │ │ ├── Cow and Message.cpp │ │ │ └── Cows and Treats.cpp │ │ ├── CodeForces Global Round 7/ │ │ │ ├── Explanations/ │ │ │ │ ├── Bad Ugly Numbers Explanation.txt │ │ │ │ ├── Maximums Explanation.txt │ │ │ │ ├── Permutation Partitions Explanation.txt │ │ │ │ └── Prefix Suffix Palindrome (Easy Version) Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Bad Ugly Numbers.cpp │ │ │ ├── Maximums.cpp │ │ │ ├── Permutation Partitions.cpp │ │ │ └── Prefix Suffix Palindrome (Easy Version).cpp │ │ └── Ozone Tech Challenge 2020/ │ │ ├── Explanations/ │ │ │ ├── Kuroni and Impossible Calculation Explanation.txt │ │ │ ├── Kuroni and Punishment Explanation.txt │ │ │ ├── Kuroni and Simple Strings Explanation.txt │ │ │ ├── Kuroni and the Celebration Explanation.txt │ │ │ └── Kuroni and the Gifts Explanation.txt │ │ └── Programs/ │ │ ├── Kuroni and Impossible Calculation.cpp │ │ ├── Kuroni and Punishment.cpp │ │ ├── Kuroni and Simple Strings.cpp │ │ ├── Kuroni and the Celebration.cpp │ │ └── Kuroni and the Gifts.cpp │ ├── Div 2/ │ │ ├── 606 Div 2 Technocup 2020 Elimination Round 4/ │ │ │ ├── Explanations/ │ │ │ │ ├── As Simple as One and Two Explanation.txt │ │ │ │ ├── Happy Birthday Polycarp Explanation.txt │ │ │ │ └── Make Them Odd Explanation.txt │ │ │ └── Programs/ │ │ │ ├── As Simple as One and Two.cpp │ │ │ ├── Happy Birthday Polycarp.cpp │ │ │ └── Make Them Odd.cpp │ │ ├── 609 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Domino for Young Explanation.txt │ │ │ │ ├── Equation Explanation.txt │ │ │ │ ├── Long Beautiful Integer Explanation.txt │ │ │ │ └── Modulo Equality Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Domino for Young.cpp │ │ │ ├── Equation.cpp │ │ │ ├── Long Beautiful Integer.cpp │ │ │ └── Modulo Equality.cpp │ │ ├── 612 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Angry Students Explanation.txt │ │ │ │ ├── Hyperset Explanation.txt │ │ │ │ └── Madhouse (Easy Version) Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Angry Students.cpp │ │ │ ├── Hyperset.cpp │ │ │ └── Madhouse (Easy Version).cpp │ │ ├── 613 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Dr Evil Underscores Explanation.txt │ │ │ │ ├── Fadi and LCM Explanation.txt │ │ │ │ ├── Just Eat It Explanation.txt │ │ │ │ └── Mezo Playing Zoma Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Dr Evil Underscores.cpp │ │ │ ├── Fadi and LCM.cpp │ │ │ ├── Just Eat It.cpp │ │ │ └── Mezo Playing Zoma.cpp │ │ ├── 616 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Array Sharpening Explanation.txt │ │ │ │ ├── Even But Not Even Explanation.txt │ │ │ │ └── Mind Control Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Array Sharpening.cpp │ │ │ ├── Even But Not Even.cpp │ │ │ └── Mind Control.cpp │ │ ├── 618 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ └── Anu has a Function Explanation.txt │ │ │ └── Programs/ │ │ │ └── Anu has a Function.cpp │ │ ├── 619 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Ayoub's Function Explanation.txt │ │ │ │ ├── Motarack's Birthday Explanation.txt │ │ │ │ ├── Three Strings Explanation.txt │ │ │ │ └── Time to Run Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Ayoub's Function.cpp │ │ │ ├── Motarack's Birthday.cpp │ │ │ ├── Three Strings.cpp │ │ │ └── Time to Run.cpp │ │ ├── 620 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── 1-Trees and Queries Explanation.txt │ │ │ │ ├── Air Conditioner Explanation.txt │ │ │ │ ├── Longest Palindrome Explanation.txt │ │ │ │ ├── Shortest and Longest LIS Explanation.txt │ │ │ │ └── Two Rabbits Explanation.txt │ │ │ └── Programs/ │ │ │ ├── 1-Trees and Queries.cpp │ │ │ ├── Air Conditioner.cpp │ │ │ ├── Longest Palindrome.cpp │ │ │ ├── Shortest and Longest LIS.cpp │ │ │ └── Two Rabbits.cpp │ │ ├── 622 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Fast Food Restaurant Explanation.txt │ │ │ │ ├── Sky Scrapers (Hard Version) Explanation.txt │ │ │ │ └── Skyscrapers (Easy Version) Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Fast Food Restaurants.cpp │ │ │ ├── Skyscrapers (Easy Version).cpp │ │ │ └── Skyscrapers (Hard Version).cpp │ │ ├── 623 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Dead Pixel Explanation.txt │ │ │ │ ├── Homecoming Explanation.txt │ │ │ │ ├── Recommendations Explanation.txt │ │ │ │ └── Restoring Permutation Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Dead Pixel.cpp │ │ │ ├── Homecoming.cpp │ │ │ ├── Recommendations.cpp │ │ │ └── Restoring Permutations.cpp │ │ ├── 625 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Contest for Robots Explanation.txt │ │ │ │ ├── Journey Planning Explanation.txt │ │ │ │ ├── Navigation System Explanation.txt │ │ │ │ └── Remove Adjacent Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Contest for Robotos.cpp │ │ │ ├── Journey Planning.cpp │ │ │ ├── Navigation System.cpp │ │ │ └── Remove Adjacent.cpp │ │ ├── 626 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Count Subrectangles Explanation.txt │ │ │ │ ├── Even Subset Sum Problem Explanation.txt │ │ │ │ └── Unusual Competitions Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Counting Subrectangles.cpp │ │ │ ├── Even Subset Sum Problem.cpp │ │ │ └── Unusual Competitions.cpp │ │ ├── 628 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Copy Copy Copy Copy Copy Explanation.txt │ │ │ │ ├── Ehab and GCD Explanation.txt │ │ │ │ ├── Ehab and Path-etic MEX Explanation.txt │ │ │ │ └── Ehab and XORcist Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Copy Copy Copy Copy Copy.cpp │ │ │ ├── Ehab and GCD.cpp │ │ │ ├── Ehab and Pathetic MEX.cpp │ │ │ └── Ehab and XORcist.cpp │ │ ├── 630 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Composite Coloring Explanation.txt │ │ │ │ ├── Exercising Walk Explanation.txt │ │ │ │ ├── Height All The Same Explanation.txt │ │ │ │ ├── K Complete Word Explanation.txt │ │ │ │ └── Walk on Matrix Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Composite Coloring.cpp │ │ │ ├── Exercising Walk.cpp │ │ │ ├── Height All the Same.cpp │ │ │ ├── K Complete Word.cpp │ │ │ └── Walk on Matrix.cpp │ │ ├── 631 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Dreamoon Likes Coloring Explanation.txt │ │ │ │ ├── Dreamoon Likes Permutations Explanation.txt │ │ │ │ ├── Dreamoon Likes Sequences Explanation.txt │ │ │ │ └── Dreamoon and Ranking Collection Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Dreamoon Likes Coloring.cpp │ │ │ ├── Dreamoon Likes Permutations.cpp │ │ │ ├── Dreamoon Likes Sequences.cpp │ │ │ └── Dreamoon and Ranking Collection.cpp │ │ ├── 632 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Eugene and Array Explanation.txt │ │ │ │ ├── Kate and Imperfection Explanation.txt │ │ │ │ ├── Kind Anton Explanation.txt │ │ │ │ └── Little Artem Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Eugene and Array.cpp │ │ │ ├── Kate and Imperfection.cpp │ │ │ ├── Kind Anton.cpp │ │ │ └── Little Artem.cpp │ │ ├── 633 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Filling Diamonds Explanation.txt │ │ │ │ ├── Powered Addition Explanation.txt │ │ │ │ └── Sorted Adjacent Differences Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Filling Diamonds.cpp │ │ │ ├── Powered Addition.cpp │ │ │ └── Sorted Adjacent Differences.cpp │ │ ├── 635 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Ichime and Triangle Explanation.txt │ │ │ │ ├── Kana and Dragon Quest Game Explanation.txt │ │ │ │ ├── Linova and Kingdom Explanation.txt │ │ │ │ └── Xenia and Colourful Gems Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Ichihime and Triangle.cpp │ │ │ ├── Kana and Dragon Quest game.cpp │ │ │ ├── Linova and Kingdom.cpp │ │ │ └── Xenia and Colourful Gems.cpp │ │ ├── 637 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Nastya and Door Explanation.txt │ │ │ │ ├── Nastya and Rice Explanation.txt │ │ │ │ ├── Nastya and Scoreboard Explanation.txt │ │ │ │ └── Nastya and Strange Generator Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Nastya and Door.cpp │ │ │ ├── Nastya and Rice.cpp │ │ │ ├── Nastya and Scoreboard.cpp │ │ │ └── Nastya and Strange Generator.cpp │ │ ├── 638 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ └── Pheonix and Balance Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Pheonix and Balance.cpp │ │ │ └── Phoenix and Balance.cpp │ │ ├── 639 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Card Construction Explanation.txt │ │ │ │ ├── Hilbert Hotel Explanation.txt │ │ │ │ ├── Monopole Magnets Explanation.txt │ │ │ │ ├── Puzzle Pieces Explanation.txt │ │ │ │ ├── Quantifier Question Explanation.txt │ │ │ │ ├── Resume Review Explanation.txt │ │ │ │ └── Resume Review.cpp │ │ │ └── Programs/ │ │ │ ├── Card Construction.cpp │ │ │ ├── Hilbert Hotel.cpp │ │ │ ├── Monopole Magnets.cpp │ │ │ ├── Puzzle Pieces.cpp │ │ │ ├── Quantifier Question.cpp │ │ │ └── Resume Review.cpp │ │ ├── 641 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Orac and Factors Explanation.txt │ │ │ │ ├── Orac and LCM Explanation.txt │ │ │ │ └── Orac and Models Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Orac and Factors.cpp │ │ │ ├── Orac and LCM.cpp │ │ │ └── Orac and Models.cpp │ │ ├── 643 Div 2/ │ │ │ ├── Explanation/ │ │ │ │ ├── Counting Triangles Explanation.txt.txt │ │ │ │ ├── Game with Array Explanation.txt │ │ │ │ ├── Restorer Distance Explanation.txt │ │ │ │ ├── Sequence with Digits Explanation.txt │ │ │ │ └── Young Explorer Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Counting Triangles.cpp │ │ │ ├── Game with Array.cpp │ │ │ ├── Restorer Distance.cpp │ │ │ ├── Sequence with Digits.cpp │ │ │ └── Young Explorer.cpp │ │ ├── 647 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Johnny and Ancient Computers Explanation.txt │ │ │ │ ├── Johnny and Another Rating Drop Explanation.txt │ │ │ │ ├── Johnny and Contribution Explanation.txt │ │ │ │ └── Johnny and His Hobbies Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Johnny and Ancient Computers.cpp │ │ │ ├── Johnny and Another Rating Drop.cpp │ │ │ ├── Johnny and Contribution.cpp │ │ │ └── Johnny and His Hobbies.cpp │ │ ├── 648 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Maximum Subsequence Value Explanation.txt │ │ │ │ ├── Secure Password Explanation.txt.txt │ │ │ │ └── Swaps Again Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Matrix Game.cpp │ │ │ ├── Maximum Subsequence Value.cpp │ │ │ ├── Rotation Matching.cpp │ │ │ ├── Secure Password.cpp │ │ │ ├── Swaps Again.cpp │ │ │ └── Trouble Sort.cpp │ │ ├── 651 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Binary Subsequence Rotation Explanation.txt │ │ │ │ ├── GCD Compression Explanation.txt │ │ │ │ ├── Maximum GCD Explanation.txt │ │ │ │ ├── Number Game Explanation.txt │ │ │ │ └── Odd Even Subsequence Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Binary Subsequence Rotation.cpp │ │ │ ├── GCD Compression.cpp │ │ │ ├── Maximum GCD.cpp │ │ │ ├── Number Game.cpp │ │ │ └── Odd-Even Subsequence.cpp │ │ ├── 658 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Common Subsequence Explanation.txt │ │ │ │ ├── Sequential Nim Explanation.txt │ │ │ │ └── Unmerge Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Common Subsequence.cpp │ │ │ ├── Sequential Nim.cpp │ │ │ └── Unmerge.cpp │ │ ├── 659 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Common Prefix Explanation.txt │ │ │ │ ├── Prefix Flip (Easy Version) Explanation.txt │ │ │ │ ├── Prefix Flip (Hard Version) Explanation.txt │ │ │ │ └── String Transformation 1 Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Common Prefixes.cpp │ │ │ ├── Prefix Flip (Easy Version).cpp │ │ │ ├── Prefix Flip (Hard Version).cpp │ │ │ └── String Transformation 1.cpp │ │ ├── 660 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Captain Flint and Crew Recruitment Explanation.txt │ │ │ │ └── Captain Flint and a Long Voyage Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Captain Flint and Crew Recruitment.cpp │ │ │ └── Captain Flint and a Long Voyage.cpp │ │ ├── 662 Div 2/ │ │ │ └── Programs/ │ │ │ └── Rainbow Dash, Fluttershy and Chess Coloring.cpp │ │ ├── 678 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Bandit in a City Explanation.txt │ │ │ │ ├── Binary Search Explanation.txt │ │ │ │ ├── Complicated Computations Explanation.txt │ │ │ │ ├── Prime Square Explanation.txt │ │ │ │ ├── Reorder Explanation.txt │ │ │ │ └── Sum Over Subsets Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Bandit in a City.cpp │ │ │ ├── Binary Search.cpp │ │ │ ├── Complicated Computations.cpp │ │ │ ├── Prime Square.cpp │ │ │ ├── Reorder.cpp │ │ │ └── Sum Over Subsets.cpp │ │ ├── 684 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Binary Table Explanation.txt │ │ │ │ ├── Buy the String Explanation.txt │ │ │ │ ├── Graph Subset Problem Explanation.txt │ │ │ │ ├── Greedy Shopping Explanation.txt │ │ │ │ └── Sum of Medians Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Binary Table.cpp │ │ │ ├── Buy the String.cpp │ │ │ ├── Graph Subset Problem.cpp │ │ │ ├── Greedy Shopping.cpp │ │ │ └── Sum of Medians.cpp │ │ ├── 685 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Bitwise Queries Explanation.txt │ │ │ │ ├── Circle Game Explanation.txt │ │ │ │ ├── Non Substring Subsequence Explanation.txt │ │ │ │ ├── Nullify the Matrix Explanation.txt │ │ │ │ ├── String Equality Explanation.txt │ │ │ │ └── Subtract or Divide Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Bitwise Queries (Hard Version).cpp │ │ │ ├── Bitwise Queries.cpp │ │ │ ├── Circle Game.cpp │ │ │ ├── Non-Substring Subsequence .cpp │ │ │ ├── Nullify the Matrix.cpp │ │ │ ├── String Equality.cpp │ │ │ └── Subtract or Divide .cpp │ │ ├── 687 Div 2 Technocup 2021 Elimination Round 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Bouncing Ball Explanation.txt │ │ │ │ ├── New Game Plus Explanation.txt │ │ │ │ ├── Prison Break Explanation.txt │ │ │ │ ├── Repainting Street Explanation.txt │ │ │ │ └── XOR Gun Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Bouncing Ball.cpp │ │ │ ├── New Game Plus.cpp │ │ │ ├── Prison Break.cpp │ │ │ ├── Repainting Street.cpp │ │ │ └── XOR Gun.cpp │ │ ├── 688 Div 2/ │ │ │ ├── Explanation/ │ │ │ │ └── Suffix Operations Explanation.txt │ │ │ └── Programs/ │ │ │ └── Suffix Operations.cpp │ │ ├── 689 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Divide and Summarize Explanation.txt │ │ │ │ ├── Find a Spruce Explanation.txt │ │ │ │ ├── Mathematical Expression Explanation.txt │ │ │ │ ├── Random Events Explanation.txt │ │ │ │ ├── String Generation Explanation.txt │ │ │ │ └── Water Level Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Divide and Summarize.cpp │ │ │ ├── Find the Spruce.cpp │ │ │ ├── Mathematical Expression.cpp │ │ │ ├── Random Events.cpp │ │ │ ├── String Generation.cpp │ │ │ └── Water Level.cpp │ │ ├── 691 Div 2/ │ │ │ ├── Explanation/ │ │ │ │ ├── Move and Turn Explanation.txt │ │ │ │ ├── Red Blue Shuffle Explanation.txt │ │ │ │ └── Row GCD Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Move and Turn.cpp │ │ │ ├── Red Blue Shuffle.cpp │ │ │ └── Row GCD.cpp │ │ ├── 692 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── Fair Numbers Explanation.txt │ │ │ │ └── In Game Chat Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Fair Numbers.cpp │ │ │ └── In Game Chat.cpp │ │ └── CodeCraft 2020/ │ │ ├── Explanations/ │ │ │ ├── Grade Allocation Explanation.txt │ │ │ ├── Nash Matrix Explanation.txt │ │ │ ├── Primitive Primes Explanation.txt │ │ │ ├── String Modification Explanation.txt │ │ │ └── Team Building Explanation.txt │ │ └── Programs/ │ │ ├── Grade Allocation.cpp │ │ ├── Nash Matrix.cpp │ │ ├── Primitive Primes.cpp │ │ ├── String Modification.cpp │ │ └── Team Building.cpp │ ├── Div 3/ │ │ ├── 605 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ ├── Nearly Opposite Parity.cpp │ │ │ │ └── Remove One Element Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Nearly Opposite Parity.cpp │ │ │ └── Remove One Element.cpp │ │ ├── 611 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ ├── Candies Division Explanation.txt │ │ │ │ ├── Christmas Trees Explanation.txt │ │ │ │ ├── DIY Garland Explanation.txt │ │ │ │ ├── Friends and Gifts Explanation.txt │ │ │ │ ├── Minutes Before the New Year Explanation.txt │ │ │ │ └── New Year Parties Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Candies Division.cpp │ │ │ ├── Christmas Trees.cpp │ │ │ ├── DIY Garland.cpp │ │ │ ├── Friends and Gifts.cpp │ │ │ ├── Minutes Before the New Year.cpp │ │ │ └── New Year Parties.cpp │ │ ├── 615 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ ├── Collecting Coins Explanation.txt │ │ │ │ ├── Collecting Packages Explanation.txt │ │ │ │ ├── MEX Maximising Explanation.txt │ │ │ │ ├── Obtain a Permutation Explanation.txt │ │ │ │ ├── Product of Three Numbers Explanation.txt │ │ │ │ └── Three Paths on a Tree Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Collecting Coins.cpp │ │ │ ├── Collecting Packages.cpp │ │ │ ├── MEX Maximising.cpp │ │ │ ├── Obtain a Permutation.cpp │ │ │ ├── Paths on a Tree.cpp │ │ │ └── Product of Three Numbers.cpp │ │ ├── 617 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ ├── Array with Odd Sum Explanation.txt │ │ │ │ ├── Fight with Monsters Explanation.txt │ │ │ │ ├── Food Buying Explanation.txt │ │ │ │ ├── String Colouring (Easy Version) Explanation.txt │ │ │ │ ├── String Colouring (Hard Version) Explanation.txt │ │ │ │ └── Yet Another Walking Robot Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Array with Odd Sum.cpp │ │ │ ├── Fight with Monsters.cpp │ │ │ ├── Food Buying.cpp │ │ │ ├── String Coloring (Hard Version).cpp │ │ │ ├── String Colouring (Easy Version).cpp │ │ │ └── Yet Another Walking Robot.cpp │ │ ├── 624 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ ├── Add Odd or Subtract Even Explanation.txt │ │ │ │ ├── Construct the Binary Tree Explanation.txt │ │ │ │ ├── Moving Points Explanation.txt │ │ │ │ ├── Perform the Combo Explanation.txt │ │ │ │ ├── Three Integers Explanation.txt │ │ │ │ └── WeirdSort Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Add Odd or Subtract Even.cpp │ │ │ ├── Construct the Binary Tree.cpp │ │ │ ├── Moving Points.cpp │ │ │ ├── Perform the Combo.cpp │ │ │ ├── Three Integers.cpp │ │ │ └── Weirdsort.cpp │ │ ├── 627 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ ├── Frog Jumps Explanation.txt │ │ │ │ ├── Maximum White Subtree Explanation.txt │ │ │ │ ├── Pair of Topics Explanation.txt │ │ │ │ ├── Sleeping Schedule Explanation.txt │ │ │ │ ├── Yet Another Palindrome Problem Explanation.txt │ │ │ │ └── Yet Another Tetris Problem Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Frog Jumps.cpp │ │ │ ├── Maximum White Subtree.cpp │ │ │ ├── Pair of Topics.cpp │ │ │ ├── Sleeping Schedule.cpp │ │ │ ├── Yet Another Palindrome Problem.cpp │ │ │ └── Yet Another Tetris Problem.cpp │ │ ├── 629 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ ├── Carousel Explanation.txt │ │ │ │ ├── Divisibility Problem Explanation.txt │ │ │ │ ├── Kth Beautiful String Explanation.txt │ │ │ │ ├── Ternary XOR Explanation.txt │ │ │ │ └── Tree Queries Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Carousel.cpp │ │ │ ├── Divisibility Problem.cpp │ │ │ ├── Kth Beautiful String.cpp │ │ │ ├── Ternary XOR.cpp │ │ │ └── Tree Queries.cpp │ │ ├── 634 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ ├── Anti Sudoku Explanation.txt │ │ │ │ ├── Candies and Two Sisters Explanation.txt │ │ │ │ ├── Construct the String Explanation.txt │ │ │ │ ├── Robots on a Grid Explanation.txt │ │ │ │ ├── Three Blocks Palindrome Explanation.txt │ │ │ │ └── Two Teams Composing Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Anti Sudoku.cpp │ │ │ ├── Candies and Two Sisters.cpp │ │ │ ├── Construct the String.cpp │ │ │ ├── Robots on a Grid.cpp │ │ │ ├── Three Blocks Palindrome.cpp │ │ │ └── Two Teams Composing.cpp │ │ ├── 636 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ └── Constant Palindrome Sum Explanation.txt │ │ │ └── Programs/ │ │ │ └── Constant Palindrome Sum.cpp │ │ ├── 661 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ ├── Binary String to Subsequence Explanation.txt │ │ │ │ ├── Boats Competition Explanation.txt │ │ │ │ ├── Gifts Fixing Explanation.txt │ │ │ │ └── Remove Smallest Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Binary String to Subsequences.cpp │ │ │ ├── Boats Competition.cpp │ │ │ ├── Gifts Fixing.cpp │ │ │ └── Remove Smallest.cpp │ │ ├── 674 Div 3/ │ │ │ └── Programs/ │ │ │ └── Number of Subsequences.cpp │ │ ├── 686 Div 3/ │ │ │ ├── Explanations/ │ │ │ │ ├── Array Partition Explanation.txt │ │ │ │ ├── Number Into Sequence Explanation.txt │ │ │ │ ├── Number of Simple Paths Explanation.txt │ │ │ │ ├── Sequence Transformation Explanation.txt │ │ │ │ ├── Special Permutation Explanation.txt │ │ │ │ └── Unique Bid Auction Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Array Partition.cpp │ │ │ ├── Number Into Sequence.cpp │ │ │ ├── Number of Simple Paths.cpp │ │ │ ├── Sequence Transformation.cpp │ │ │ ├── Special Permutation.cpp │ │ │ └── Unique Bid Auction.cpp │ │ └── Explanations/ │ │ └── Number of Subsequences Explanation.txt │ ├── Educational Rounds/ │ │ ├── Educational Round 78/ │ │ │ ├── Explanations/ │ │ │ │ ├── Berry Jam Explanation.txt │ │ │ │ ├── Cards Explanation.txt │ │ │ │ ├── Shuffle Hashing Explanation.txt │ │ │ │ └── Tests for Problem D Explanation.txt │ │ │ └── Programs/ │ │ │ ├── A and B.cpp │ │ │ ├── Berry Jam.cpp │ │ │ ├── Shuffle Hashing.cpp │ │ │ └── Tests for Problem D.cpp │ │ ├── Educational Round 79/ │ │ │ ├── Explanations/ │ │ │ │ ├── New Year Garland Explanation.txt │ │ │ │ ├── Stack of Presents Explanation.txt │ │ │ │ └── Verse for Santa Explanation.txt │ │ │ └── Programs/ │ │ │ ├── New Year Garland.cpp │ │ │ ├── Stack of Presents.cpp │ │ │ └── Verse for Santa.cpp │ │ ├── Educational Round 80/ │ │ │ ├── Explanations/ │ │ │ │ ├── Deadline Explanation.txt │ │ │ │ ├── Minimax Problem Explanation.txt │ │ │ │ ├── Two Arrays Alternate Solution Explanation.txt │ │ │ │ ├── Two Arrays Explanation.txt │ │ │ │ └── Yet Another Meme Problem Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Deadline.cpp │ │ │ ├── Minimax Problem.cpp │ │ │ ├── Two Arrays Alternate Solution.cpp │ │ │ ├── Two Arrays.cpp │ │ │ └── Yet Another Meme Problem.cpp │ │ ├── Educational Round 81/ │ │ │ ├── Explanation/ │ │ │ │ ├── Display the Number Explanation.txt │ │ │ │ ├── Infinite Prefixes Explanation.txt │ │ │ │ ├── Obtain the String Explanation.txt │ │ │ │ └── Same GCDs Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Display the Number.cpp │ │ │ ├── Infinite Prefixes.cpp │ │ │ ├── Obtain the String.cpp │ │ │ └── Same GCDs.cpp │ │ ├── Educational Round 82/ │ │ │ ├── Explanations/ │ │ │ │ ├── Erasing Zeroes Explanation.txt │ │ │ │ ├── National Project Explanation.txt │ │ │ │ └── Perfect Keyboard Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Erasing Zeroes.cpp │ │ │ ├── Fill the Bag.cpp │ │ │ ├── National Project.cpp │ │ │ └── Perfect Keyboard.cpp │ │ ├── Educational Round 83/ │ │ │ ├── Explanations/ │ │ │ │ ├── Adding Powers Explanation.txt │ │ │ │ ├── Array Shrinking Explanation.txt │ │ │ │ ├── Bogosort Explanation.txt │ │ │ │ ├── Count the Arrays Explanation.txt │ │ │ │ └── Two Regular Polygons Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Adding Powers.cpp │ │ │ ├── Array Shrinking.cpp │ │ │ ├── Bogosort.cpp │ │ │ ├── Count the Arrays.cpp │ │ │ └── Two Regular Polygons.cpp │ │ ├── Educational Round 84/ │ │ │ ├── Explanations/ │ │ │ │ ├── Count the Blocks Explanation.txt │ │ │ │ └── Sum of Odd Integers Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Count the Blocks.cpp │ │ │ └── Sum of Odd Integers.cpp │ │ ├── Educational Round 85/ │ │ │ ├── Explanations/ │ │ │ │ ├── Circle of Monsters Explanation.txt │ │ │ │ ├── Divisor Paths Explanation.txt │ │ │ │ ├── Level Statistics Explanation.txt │ │ │ │ ├── Middle Class Explanation.txt │ │ │ │ └── Minimum Euler Cycle Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Circle of Monsters.cpp │ │ │ ├── Divisor Paths.cpp │ │ │ ├── Level Statistics.cpp │ │ │ ├── Middle Class.cpp │ │ │ └── Minimum Euler Cycle.cpp │ │ ├── Educational Round 86/ │ │ │ ├── Explanations/ │ │ │ │ ├── Binary Period Explanation.txt │ │ │ │ ├── Road to Zero Explanation.txt │ │ │ │ └── Yet Another Counting Problem Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Binary Period.cpp │ │ │ ├── Road to Zero.cpp │ │ │ └── Yet Another Counting Problem.cpp │ │ ├── Educational Round 90/ │ │ │ ├── Explanations/ │ │ │ │ ├── 01 Game Explanation.txt │ │ │ │ ├── Donut Shops Explanation.txt │ │ │ │ ├── Maximum Sum on Even Positions Explanation.txt │ │ │ │ └── Pluses and Minuses Explanation.txt │ │ │ └── Programs/ │ │ │ ├── 01 Game.cpp │ │ │ ├── Donut Shops.cpp │ │ │ ├── Maximum Sum on Even Positions.cpp │ │ │ └── Pluses and Minuses.cpp │ │ ├── Educational Round 92/ │ │ │ ├── Explanations/ │ │ │ │ └── Good String Explanation.txt │ │ │ └── Programs/ │ │ │ └── Good String.cpp │ │ └── Educational Round 93/ │ │ ├── Explanations/ │ │ │ ├── Bad Triangle Explanation.txt │ │ │ ├── Colored Rectangles Explanation.txt │ │ │ ├── Good Subarrays Explanation.txt │ │ │ └── Substring Removal Game Explanation.txt │ │ └── Programs/ │ │ ├── Bad Triangle.cpp │ │ ├── Colored Rectangles.cpp │ │ ├── Good Subarrays.cpp │ │ └── Substring Removal Game.cpp │ ├── Good Bye 2019/ │ │ ├── Explanations/ │ │ │ ├── Card Game Explanation.txt │ │ │ ├── Interesting Subarray Explanation │ │ │ └── Make Good Explanation.txt │ │ └── Programs/ │ │ ├── Card Game.cpp │ │ ├── Interesting Subarray.cpp │ │ └── Make Good.cpp │ ├── Hello 2020/ │ │ ├── Explanations/ │ │ │ ├── New Year and Ascent Sequences Explanation.txt │ │ │ ├── New Year and Conferences Explanation.txt │ │ │ ├── New Year and Naming Explanation │ │ │ └── New Year and Permutation Explanation.txt │ │ └── Programs/ │ │ ├── New Year and Ascent Sequences.cpp │ │ ├── New Year and Conferences.cpp │ │ ├── New Year and Naming.cpp │ │ └── New Year and Permutation.cpp │ └── Practice/ │ ├── Explanations/ │ │ ├── Alternative Thinking Explanation.txt │ │ ├── Ant Colony Explanation.txt │ │ ├── Anton and Chess Explanation.txt │ │ ├── Anton and Ira Explanation.txt │ │ ├── Ants in Leaves Explanation.txt │ │ ├── Army Creation Explanation.txt │ │ ├── Bargain Explanation.txt │ │ ├── Concatenated Multiples Explanation.txt │ │ ├── Count Pairs Explanation.txt │ │ ├── Cram Time Explanation.txt │ │ ├── Cycles Explanation.txt │ │ ├── Elections Explanation.txt │ │ ├── Fight Against Traffic Explanation.txt │ │ ├── Hacker, Pack your Bags Explanation.txt │ │ ├── Imbalance Array Explanation.txt │ │ ├── Laboratory Work Explanation.txt │ │ ├── Lieges of Legendre Explanation.txt │ │ ├── Line Explanation.txt │ │ ├── Marina and Vyasa Explanation.txt │ │ ├── Match Points Explanation.txt │ │ ├── Molly and Chemicals Explanation.txt │ │ ├── Moodular Arithmetic Explanation.txt │ │ ├── Mouse Hunt Explanation.txt │ │ ├── Multiplicity Explanation.txt │ │ ├── Multipliers Explanation.txt │ │ ├── My Pretty Girl Nora Explanation.txt │ │ ├── Optimal Number Permutation Explanation.txt │ │ ├── Pair of Numbers Explanation.txt │ │ ├── Pashmak and Graph Explanation.txt │ │ ├── Pavel and Triangles Explanation.txt │ │ ├── Plus and XOR Explanation.txt │ │ ├── Points Explanation.txt │ │ ├── Prime Number Explanation.txt │ │ ├── Ramesses and Corner Inversion Explanation.txt │ │ ├── Scheme.cpp │ │ ├── Secret Passwords Explanation.txt │ │ ├── Segments Explanation.txt │ │ ├── Special Segments of Permutation Explanation.txt │ │ ├── The Sum of the k-th Powers Explanation.txt │ │ ├── The Treasure of Segments Explanation.txt │ │ └── Winter is Here Explanation.txt │ └── Programs/ │ ├── Alternative Thinking.cpp │ ├── Ant Colony.cpp │ ├── Anton and Chess.cpp │ ├── Anton and Ira.cpp │ ├── Ants in Leaves.cpp │ ├── Army Creation.cpp │ ├── Bargain.cpp │ ├── Concatenated Multiples.cpp │ ├── Count Pairs.cpp │ ├── Cram Time.cpp │ ├── Cycles.cpp │ ├── Elections.cpp │ ├── Fight Against Traffic.cpp │ ├── Hacker, pack your Bags.cpp │ ├── Imbalanced Array.cpp │ ├── Laboratory Work.cpp │ ├── Lieges of Legendre.cpp │ ├── Line.cpp │ ├── Marina and Vyasa.cpp │ ├── Match Points.cpp │ ├── Molly and Chemicals.cpp │ ├── Moodular Arithmetic.cpp │ ├── Mouse Hunt.cpp │ ├── Multiplicity.cpp │ ├── Multipliers.cpp │ ├── My Pretty Girl Nora.cpp │ ├── Optimal Number Permutation.cpp │ ├── Pair of Numbers.cpp │ ├── Pashmak and Graph.cpp │ ├── Pavel and Triangles.cpp │ ├── Plus and Xor.cpp │ ├── Points.cpp │ ├── Prime Number.cpp │ ├── Ramesses and Corner Inversion.cpp │ ├── Scheme.cpp │ ├── Secret Passwords.cpp │ ├── Segments.cpp │ ├── Special Segments of Permutation.cpp │ ├── The Sum of the k-th Powers.cpp │ ├── The Treasure of Segments.cpp │ └── Winter is Here.cpp ├── 2021/ │ ├── Combined Divisions/ │ │ └── Deltix Round Summer 2021/ │ │ ├── Explanations/ │ │ │ └── Take a Guess Explanation.txt │ │ └── Programs/ │ │ └── Take a Guess.cpp │ ├── Div 2/ │ │ ├── 694/ │ │ │ ├── Explanations/ │ │ │ │ ├── Strange Definition Explanation.txt │ │ │ │ ├── Strange Housing Explanation.txt │ │ │ │ └── Strange Shuffle Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Strange Birthday Party.cpp │ │ │ ├── Strange Definition.cpp │ │ │ ├── Strange Housing.cpp │ │ │ ├── Strange List.cpp │ │ │ ├── Strange Partition.cpp │ │ │ └── Strange Shuffle.cpp │ │ ├── 708/ │ │ │ ├── Explanations/ │ │ │ │ ├── Genius Explanation.txt │ │ │ │ ├── M Arrays Explanation.txt.txt │ │ │ │ ├── Meximization Explanation.txt.txt │ │ │ │ ├── Square Free Division Explanation.txt.txt │ │ │ │ └── k-LCM Explanation.txt.txt │ │ │ └── Programs/ │ │ │ ├── Genius.cpp │ │ │ ├── M Arrays.cpp │ │ │ ├── Meximization.cpp │ │ │ ├── Square Free Division.cpp │ │ │ └── k-LCM.cpp │ │ ├── 711 CodeCraft 2021/ │ │ │ ├── Explanations/ │ │ │ │ ├── Bananas in a MIrcorwave Explanation.txt.txt │ │ │ │ ├── Box Fitting Explanation.txt │ │ │ │ ├── GCD Sum Explanation.txt.txt │ │ │ │ └── Two Houses Explanation.txt.txt │ │ │ └── Programs/ │ │ │ ├── Bananas in a Microwave.cpp │ │ │ ├── Box Fitting.cpp │ │ │ ├── GCD Sum.cpp │ │ │ └── Two Houses.cpp │ │ ├── 712 Div 2/ │ │ │ ├── Explanations/ │ │ │ │ ├── 3 Colouring Explanation.txt │ │ │ │ ├── Deja Vu Explanation.txt.txt │ │ │ │ └── Flip the Bits Explanation.txt.txt │ │ │ └── Programs/ │ │ │ ├── 3 Colouring.cpp │ │ │ ├── Déjà Vu.cpp │ │ │ └── Flip the Bits.cpp │ │ ├── 714 Division by Zero 2021/ │ │ │ ├── Explanations/ │ │ │ │ ├── AND Sequences Explanation.txt.txt │ │ │ │ ├── Add One Explanation.txt.txt │ │ │ │ ├── Arrays and Peaks Explanation.txt.txt │ │ │ │ ├── Cost Equilibrium Explanation.txt.txt │ │ │ │ ├── GCD and MST Explanation.txt │ │ │ │ ├── GCD and MST Explanation.txt.txt │ │ │ │ └── Swapping Problem Explanation.txt.txt │ │ │ └── Programs/ │ │ │ ├── AND Sequences.cpp │ │ │ ├── Add One.cpp │ │ │ ├── Arrays and Peaks.cpp │ │ │ ├── Cost Equilibrium.cpp │ │ │ ├── GCD and MST.cpp │ │ │ └── Swapping Problem.cpp │ │ ├── 716 Div 2/ │ │ │ └── Programs/ │ │ │ └── Product 1 mod N.cpp │ │ ├── 722/ │ │ │ ├── Explanations/ │ │ │ │ └── Parsa and Humungous Tree Explanation.txt │ │ │ └── Programs/ │ │ │ └── Parsa and Humungous Tree.cpp │ │ ├── 724/ │ │ │ ├── Diluc and Kaeye Explanation.txt │ │ │ ├── Explanations/ │ │ │ │ └── Diluc and Kaeye Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Diluc and Kaeya.cpp │ │ │ ├── Omkar and Bad Story.cpp │ │ │ ├── Omkar and Forest.cpp │ │ │ └── Prinzessin der Verurteilung.cpp │ │ ├── 726/ │ │ │ ├── Explanations/ │ │ │ │ ├── Arithemtic Array Explanation.txt.txt │ │ │ │ ├── Bad Boy Explanation.txt.txt │ │ │ │ ├── Challenging Cliffs Explanation.txt.txt │ │ │ │ ├── Deleting Divisors Explanation.txt.txt │ │ │ │ └── Erase and Extend (Easy Version) Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Arithmetic Array.cpp │ │ │ ├── Bad Boy.cpp │ │ │ ├── Challenging Cliffs.cpp │ │ │ ├── Deleting Divisors.cpp │ │ │ ├── Erase and Extend (Easy Version).cpp │ │ │ └── Figure Fixing.cpp │ │ ├── 727/ │ │ │ ├── Explanations/ │ │ │ │ ├── Constest Start Time Explanation.txt │ │ │ │ ├── Love Song Explanation.txt.txt │ │ │ │ ├── Price Fixed Explanation.txt.txt │ │ │ │ └── Stable Groups Explanation.txt.txt │ │ │ └── Programs/ │ │ │ ├── Contest Start.cpp │ │ │ ├── Love Song.cpp │ │ │ ├── PriceFixed.cpp │ │ │ └── Stable Groups.cpp │ │ ├── 740/ │ │ │ └── Programs/ │ │ │ ├── Deep Down Below Binary Search.cpp │ │ │ └── Deep Down Below.cpp │ │ ├── 742/ │ │ │ ├── Explanations/ │ │ │ │ └── Carrying Conundrum Explanation.txt │ │ │ └── Programs/ │ │ │ └── Carrying Conundrum.cpp │ │ └── 750/ │ │ ├── Explanations/ │ │ │ └── Pchelyonok and Segments Explanation.txt │ │ └── Programs/ │ │ └── Pchelyonok and Segments.cpp │ ├── Div 3/ │ │ ├── 710/ │ │ │ ├── Explanations/ │ │ │ │ ├── Double Ended Strings Explanation.txt.txt │ │ │ │ ├── Epic Transformation Explanation.txt.txt │ │ │ │ ├── Maximize the Remaining String Explanation.txt │ │ │ │ ├── Partial Replacement.txt.txt │ │ │ │ ├── Strange Table Explanation.txt.txt │ │ │ │ └── Triangular Paths Explanation.txt.txt │ │ │ └── Programs/ │ │ │ ├── Double Ended Strings.cpp │ │ │ ├── Epic Transformation.cpp │ │ │ ├── Maximize the Remaining String.cpp │ │ │ ├── Partial Replacement.cpp │ │ │ ├── Strange Table.cpp │ │ │ └── Triangular Paths.cpp │ │ ├── 713/ │ │ │ ├── Explanations/ │ │ │ │ ├── A-B Palindrome Explanation.txt.txt │ │ │ │ ├── Almost Rectange Explanation.txt.txt │ │ │ │ ├── Corrupted Array Explanation.txt.txt │ │ │ │ ├── Education Explanation.txt.txt │ │ │ │ ├── Short Task Explanation.txt │ │ │ │ └── Spy Detected Explanation.txt.txt │ │ │ └── Programs/ │ │ │ ├── A-B Palindrome.cpp │ │ │ ├── Almost Rectangle.cpp │ │ │ ├── Corrupted Array.cpp │ │ │ ├── Education.cpp │ │ │ ├── Short Task.cpp │ │ │ └── Spy Detected.cpp │ │ └── 744/ │ │ └── Programs/ │ │ └── Array Optimization by Deque.cpp │ ├── Educational Round 109/ │ │ ├── Explanations/ │ │ │ └── Permutation Sort Explanation.txt │ │ └── Programs/ │ │ └── Permutation Sort.cpp │ └── Practice/ │ ├── Explanations/ │ │ ├── Anton and Making Potions Explanation.txt │ │ ├── Anton and Tree Explanation.txt.txt │ │ ├── Counter Attack Explanation.txt.txt │ │ ├── Game of Stones Explanation.txt.txt │ │ ├── Lost Tree Explanation.txt.txt │ │ └── Maximum Absurdity Explanation.txt.txt │ └── Programs/ │ ├── Anton and Making Potions.cpp │ ├── Anton and Tree.cpp │ ├── Counter Attack.cpp │ ├── Game of Stones.cpp │ ├── Lost Tree.cpp │ └── Maximum Absurdity.cpp ├── 2022/ │ └── Contests/ │ ├── Combined Divisions/ │ │ └── CodeTON/ │ │ ├── Explanations/ │ │ │ ├── Good Pairs Explanation.txt.txt │ │ │ ├── Make Equal with Mod Explanation.txt.txt │ │ │ └── Subtract Operations Explanation.txt │ │ └── Programs/ │ │ ├── Good Pairs.cpp │ │ ├── K-good.cpp │ │ ├── Make Equal With Mod.cpp │ │ └── Subtract Operation.cpp │ ├── Div 2/ │ │ ├── 766/ │ │ │ └── Programs/ │ │ │ ├── Not Adding.cpp │ │ │ ├── Not Assigning.cpp │ │ │ ├── Not Shading.cpp │ │ │ └── Not Sitting.cpp │ │ ├── 767/ │ │ │ ├── Explanations/ │ │ │ │ └── Meximum Array Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Download More RAM.cpp │ │ │ ├── GCD Arrays.cpp │ │ │ ├── Game On Sum Easy Version.cpp │ │ │ ├── Game on Sum Hard Version.cpp │ │ │ ├── Grid XOR.cpp │ │ │ ├── Meximum Array.cpp │ │ │ └── Peculiar Movie Preferences.cpp │ │ ├── 777/ │ │ │ └── Programs/ │ │ │ ├── Madoka and Math Dad.cpp │ │ │ └── Makoda and Childish Pranks.cpp │ │ ├── 778/ │ │ │ ├── Explanations/ │ │ │ │ ├── Alice and the Cake Explanation.txt.txt │ │ │ │ ├── Maximum Cake Tastiness Explanation.txt │ │ │ │ └── Prefix Removals Explanation.txt.txt │ │ │ └── Programs/ │ │ │ ├── Alice and the Cake.cpp │ │ │ ├── Maximum Cake Tastiness.cpp │ │ │ └── Prefix Removals.cpp │ │ ├── 789/ │ │ │ ├── Explanation/ │ │ │ │ ├── Tokitsukaze and All Zero Sequence Explanation.txt.txt │ │ │ │ ├── Tokitsukaze and Good 01-String (easy version) Explanation.txt.txt │ │ │ │ └── Tokitsukaze and Strange Inequality Explanation.txt │ │ │ └── Programs/ │ │ │ ├── Tokitsukaze and Good 01-String (easy version).cpp │ │ │ └── Tokitsukaze and Strange Inequality.cpp │ │ ├── 792/ │ │ │ ├── Explanations/ │ │ │ │ ├── AvtoBus Explanation.txt │ │ │ │ ├── Rooks Defenders Explanation.txt.txt │ │ │ │ └── Stone Age Problem Explanation.txt.txt │ │ │ └── Programs/ │ │ │ ├── AvtoBus.cpp │ │ │ ├── Rooks Defenders.cpp │ │ │ └── Stone Age Problem.cpp │ │ └── 809/ │ │ └── Programs/ │ │ └── Qpwoeirut And The City.cpp │ ├── Div 3/ │ │ └── 828/ │ │ └── Programs/ │ │ ├── Divisibility by 2^n.cpp │ │ ├── Divisible Numbers Easy Version.cpp │ │ ├── Even-Odd Increments.cpp │ │ ├── Number Replacement.cpp │ │ └── Traffic Light.cpp │ ├── Educational Round 125/ │ │ ├── Explanations/ │ │ │ ├── By Gamers For Gamers Explanation.txt │ │ │ ├── Integer Moves Explanation.txt.txt │ │ │ └── XY Sequence Explanation.txt.txt │ │ └── Programs/ │ │ ├── Bracket Sequence Deletion.cpp │ │ ├── By Gamers For Gamers.cpp │ │ ├── Integer Moves.cpp │ │ └── XY Sequence.cpp │ └── Educational Rounds/ │ ├── Educational Round 125/ │ │ └── EExplanations/ │ │ └── Bracket Sequence Deletion Explanation.txt │ └── Educational Round 127/ │ ├── Explanations/ │ │ ├── Consecutive Points Segment Explanation.txt.txt │ │ ├── Dolce Vita Explanation.txt.txt │ │ ├── Insert a Progression Explanation.txt │ │ └── String Building Explanation.txt.txt │ └── Programs/ │ ├── Consecutive Points Segment.cpp │ ├── Dolce Vita.cpp │ ├── Insert a Progression.cpp │ └── String Building.cpp ├── 2023/ │ └── Contests/ │ └── Div 2/ │ ├── 810/ │ │ ├── Explanations/ │ │ │ └── XOR Triangle Explanation.txt │ │ └── Programs/ │ │ └── XOR Triangle.cpp │ └── 857/ │ └── Programs/ │ ├── Buying Gifts.cpp │ ├── Likes.cpp │ ├── Settlement of Guinea Pigs.cpp │ └── The Very Beautiful Blanket.cpp ├── C Programs/ │ ├── C Programs - 1/ │ │ ├── Bear_and_Big_Brother.c │ │ ├── Beautiful_Matrix.c │ │ ├── Boy_or_Girl.c │ │ ├── Complicated_GCD.c │ │ ├── Compote.c │ │ ├── Dasha_and_Stairs.c │ │ ├── Elephant.c │ │ ├── Even_Odds.c │ │ ├── Fancy_Fence.c │ │ ├── Holiday_of_Equality.c │ │ ├── I_Love_Username.c │ │ ├── Ilya_Bank_Account.c │ │ ├── Little_Elephant_Rozdil.c │ │ ├── Lucky_Division.c │ │ ├── Memory_and_Crow.c │ │ ├── Nearly_Lucky_Number.c │ │ ├── Opponents.c │ │ ├── Petr_and_Calendar.c │ │ ├── Shell_Game.c │ │ ├── Sherlock_New_Girlfriend.c │ │ ├── Taymr_is_Calling_You.c │ │ ├── The_Wall.c │ │ ├── Translation.c │ │ ├── Vitya_in_the_Countryside.c │ │ └── Vladik_and_Flights.c │ ├── C Programs - 2/ │ │ ├── A_and_B_Chess.c │ │ ├── Again_Twenty_Five.c │ │ ├── Anton_and_Danik.c │ │ ├── Bachgold_Problem.c │ │ ├── Bit++.c │ │ ├── Buy_a_Shovel.c │ │ ├── Chat_Room.c │ │ ├── Chips.c │ │ ├── Cinema_Line.c │ │ ├── Domino_Piling.c │ │ ├── Drazil_and_Date.c │ │ ├── George_and_Accomodation.c │ │ ├── Gravity_Flip.c │ │ ├── Infinite_Sequence.c │ │ ├── Interview_with_Oleg.c │ │ ├── Pasha_and_Stick.c │ │ ├── Pineapple_Incident.c │ │ ├── Serial_Killer.c │ │ ├── Soldier_and_Bananas.c │ │ ├── Spider_Man.c │ │ ├── Stones_on_a_Table.c │ │ ├── Transform_A_to_B.c │ │ ├── Triangular_Numbers.c │ │ ├── Watermelon.c │ │ └── Word_Capitalisation.c │ ├── C Programs - 3/ │ │ ├── Anton_and_Polyhedron.c │ │ ├── Calculating_Function.c │ │ ├── Cheap_Travel.c │ │ ├── Checking_the_Calendar.c │ │ ├── Currency_System_in_Geraldion.c │ │ ├── Die_Roll.c │ │ ├── Domino_Effect.c │ │ ├── Expression.c │ │ ├── Fedya_and_Maths.c │ │ ├── Filya_and_Homework.c │ │ ├── Game.c │ │ ├── Initial_Bet.c │ │ ├── LCM_Challenge.c │ │ ├── Maximum_Increase.c │ │ ├── Mishka_and_Game.c │ │ ├── Multiplication_Table.c │ │ ├── Next_Round.c │ │ ├── Party.c │ │ ├── Police_Recruits.c │ │ ├── Raising_Bacteria.c │ │ ├── Save_Luke.c │ │ ├── Taxes.c │ │ ├── Tennis_Tournament.c │ │ ├── The_Number_of_Positions.c │ │ └── Theatre_Square.c │ ├── C Programs - 4/ │ │ ├── Aloyna_Numbers.c │ │ ├── Arpa_Hard_Problem_Mehrad_Naive_Cheat.c │ │ ├── Benches.c │ │ ├── Challenge_Pendants.c │ │ ├── Chewbacca_and_Number.c │ │ ├── Chocolate.c │ │ ├── Design_Tutorial_Learn_From_Math.c │ │ ├── Divisibility.c │ │ ├── Fedor_and_New_Game.c │ │ ├── Game_test.c │ │ ├── Hexagons.c │ │ ├── Hulk.c │ │ ├── Indivisibility.c │ │ ├── Interview.c │ │ ├── King_Moves.c │ │ ├── Lineland_Mail.c │ │ ├── Lucky_Numbers.c │ │ ├── PolandBall_and_Hypothesis.c │ │ ├── Professor_Gukiz_Robot.c │ │ ├── Random_Teams.c │ │ ├── Reconnaissance_2.c │ │ ├── Selection_of_Personnel.c │ │ ├── Tetrahedron.c │ │ ├── Vasya_and_Petya_Game.c │ │ └── Way_Too_Long_Words.c │ ├── C Programs - 5/ │ │ ├── Bear_and_Poker.c │ │ ├── Boredom.c │ │ ├── Cut_Ribbon.c │ │ ├── Display_Size.c │ │ ├── Duff_in_Love.c │ │ ├── Flipping_Game.c │ │ ├── Flowers.cpp │ │ ├── Fox_and_Dividing_Cheese.c │ │ ├── Hungry_Sequence.c │ │ ├── K_Interesting_Pair_of_Integers.c │ │ ├── Kefa_and_First_Step.c │ │ ├── Making_a_String.c │ │ ├── Non_Square_Equation.c │ │ ├── Odd_Sum.c │ │ ├── Parking_Lot.c │ │ ├── Perfect_Permutation.c │ │ ├── Preparing_for_Olympiad.c │ │ ├── Star.c │ │ ├── Table_Tennis_Game_2.c │ │ ├── Tavas_and_Saddas.c │ │ ├── Team.c │ │ ├── Tetrahedron_Efficiently.c │ │ ├── Tricky_Sum.c │ │ ├── Vacations.c │ │ └── Vanya_and_Table.c │ ├── C Programs - 6/ │ │ ├── A_Shell_Game.c │ │ ├── Accounting.c │ │ ├── Anton_and_Digits.c │ │ ├── Black_Square.c │ │ ├── Dinner_with_Emma.c │ │ ├── Ebony_and_Ivory.c │ │ ├── Find Amir.c │ │ ├── Game_with_Sticks.c │ │ ├── Increasing_Sequence.c │ │ ├── Insomnia_Cure.c │ │ ├── Jumping_Ball.c │ │ ├── K_Tree.c │ │ ├── Lovely_Palindromes.c │ │ ├── Luxurious_Buildings.c │ │ ├── Meeting_of_Old_Friends.c │ │ ├── Oleg_and_Shares.c │ │ ├── Patrick_and_Shopping.c │ │ ├── Plate_Game.c │ │ ├── Rewards.c │ │ ├── Round_House.c │ │ ├── System_of_Equations.c │ │ ├── Vanya_and_Fence.c │ │ ├── Vanya_and_Lanterns.c │ │ ├── Vasya_and_Hipster.c │ │ └── Wizard_Duel.c │ ├── C Programs - 7/ │ │ ├── 3_Palindrome.c │ │ ├── Alena_Schedule.c │ │ ├── Alice_and_Bob.c │ │ ├── An_Abandoned_Sentiment_From_Past.c │ │ ├── Andrushya_and_Socks.c │ │ ├── Combination Lock.cpp │ │ ├── Devu_Singer_Charu_Joker.c │ │ ├── Fake_NP.c │ │ ├── Fence.c │ │ ├── Find_Marble.c │ │ ├── Free Ice Cream.cpp │ │ ├── Hexadecimal's Theorem Alternate Solution.cpp │ │ ├── Hexadecimal's Theorem.cpp │ │ ├── IQ_Test.c │ │ ├── Magnets.c │ │ ├── Mahmod_Longest_Uncommon_Subsequence.c │ │ ├── Monster_and_Squirrel.c │ │ ├── New Year Transportation.cpp │ │ ├── Optimal_Point_on_a_Line.cpp │ │ ├── Pashmak_and_Flowers.c │ │ ├── Potions_Homework.cpp │ │ ├── Pythagorean Triples.cpp │ │ ├── Red_Blue_Balls.c │ │ ├── The_Contest.c │ │ └── Young_Physicist.c │ ├── C Programs - 8/ │ │ ├── A and B Team Training.cpp │ │ ├── Almost Prime.cpp │ │ ├── Brian's Photos.cpp │ │ ├── Caisa and Pylons.cpp │ │ ├── Choosing Teams.cpp │ │ ├── Ciel and Flowers.cpp │ │ ├── Diverse Permutation.cpp │ │ ├── HQ9+.cpp │ │ ├── Hexadecimal's Numbers.cpp │ │ ├── Infinite Sequence.cpp │ │ ├── Jzzhu and Sequences.cpp │ │ ├── K-Factorisation.cpp │ │ ├── Noldbach Problem.cpp │ │ ├── Olesya and Rodion.cpp │ │ ├── Petr and Book.cpp │ │ ├── Petya and Strings.cpp │ │ ├── Sum of Digits.cpp │ │ ├── T Primes Alternate Solution.cpp │ │ ├── T-Primes.cpp │ │ ├── The Golden Age.cpp │ │ ├── Two Bags of Potatos.cpp │ │ ├── Vanya and Cards.cpp │ │ ├── Vitaly and Night.cpp │ │ ├── Wet Shark and Odd and Even.cpp │ │ └── Yaroslav and Permutations.cpp │ ├── C Programs - 9/ │ │ ├── Alyona and Copybooks.cpp │ │ ├── Appleman and Toastman.cpp │ │ ├── Array.cpp │ │ ├── Bear and Five Cards.cpp │ │ ├── Bus to Udayland.cpp │ │ ├── Case of the Zeroes and Ones.cpp │ │ ├── Circle Line.cpp │ │ ├── Crazy Computer.cpp │ │ ├── Crossword Solving.cpp │ │ ├── Divisibility.cpp │ │ ├── Fox and Number Game.cpp │ │ ├── Haiku.cpp │ │ ├── I'm Bored with Life.cpp │ │ ├── Is your Horseshoe on the other hoof.cpp │ │ ├── Kitahara Haruki's Gift.cpp │ │ ├── Little Elephant and Function.cpp │ │ ├── Little Elephant and Problem.cpp │ │ ├── New Year and Days.cpp │ │ ├── One Dimensional Japanese Crossword.cpp │ │ ├── Present from Lena.cpp │ │ ├── Prime Matrix.cpp │ │ ├── String Task.cpp │ │ ├── Subtractions.cpp │ │ ├── Toy Army.cpp │ │ └── k-th_Divisor.cpp │ ├── C Programs 10/ │ │ ├── A and B Compilation Errors.cpp │ │ ├── Amr and Music.cpp │ │ ├── Arrival of General.cpp │ │ ├── Bear and Game.cpp │ │ ├── Beautiful Year.cpp │ │ ├── Black Square.cpp │ │ ├── Counterexample.cpp │ │ ├── Difference Row.cpp │ │ ├── Eugene and Array.cpp │ │ ├── Interesting Drink.cpp │ │ ├── Keyboard Layouts.cpp │ │ ├── Life Without Zeroes.cpp │ │ ├── Modified GCD.cpp │ │ ├── Multi Judge Solving.cpp │ │ ├── Next Test.cpp │ │ ├── Presents.cpp │ │ ├── Serega and Coat Rack.cpp │ │ ├── Serega and Suffixes.cpp │ │ ├── Slightly Decreasing Permutation.cpp │ │ ├── SwapSort.cpp │ │ ├── Taxi.cpp │ │ ├── Toy Cars.cpp │ │ ├── Unimodal Arrays.cpp │ │ ├── Valera and Plates.cpp │ │ └── Vanya and Cubes.cpp │ ├── C Programs 11/ │ │ ├── BerSU Ball.cpp │ │ ├── Elections.cpp │ │ ├── Five in a Row.cpp │ │ ├── Football.cpp │ │ ├── Fortune Telling.cpp │ │ ├── Free Cash Alternate Solution.cpp │ │ ├── Free Cash.cpp │ │ ├── Games.cpp │ │ ├── Good Number.cpp │ │ ├── Johnny Likes Numbers.cpp │ │ ├── Lever.cpp │ │ ├── Lunch Rush.cpp │ │ ├── Magic Spheres.cpp │ │ ├── New Year and Hurry.cpp │ │ ├── Nicholas and Permutation.cpp │ │ ├── Petya and Staircases.cpp │ │ ├── Playing with Dice.cpp │ │ ├── Saitama Destroys Hotel.cpp │ │ ├── Sasha and Sticks.cpp │ │ ├── Soft Drinking.cpp │ │ ├── The Child and The Homework.cpp │ │ ├── The New Year Meeting Friends Alternate Solution.cpp │ │ ├── The New Year Meeting Friends.cpp │ │ ├── Word.cpp │ │ └── inc ARG.cpp │ ├── C Programs 12/ │ │ ├── Anastasia and Pebbles.cpp │ │ ├── Bear and Three Balls.cpp │ │ ├── Buggy Sorting.cpp │ │ ├── Co Prime Array.cpp │ │ ├── Dima and Friends.cpp │ │ ├── Dima and Sequence.cpp │ │ ├── Dreamoon and Stairs Alternate Solution.cpp │ │ ├── Dreamoon and Stairs.cpp │ │ ├── Fashion in Berland.cpp │ │ ├── Inbox (100500).cpp │ │ ├── Key Races.cpp │ │ ├── Ksusha and Arrays.cpp │ │ ├── Lecture.cpp │ │ ├── Little Elephant and Chess.cpp │ │ ├── Little Girl and Maximum Sum.cpp │ │ ├── Minimum Difficulty.cpp │ │ ├── Pasha and Pixels.cpp │ │ ├── Puzzles.cpp │ │ ├── Santa Claus and Candies.cpp │ │ ├── Sereja and Dima.cpp │ │ ├── Shaas and Oskols.cpp │ │ ├── Sleuth.cpp │ │ ├── The Festive Evening.cpp │ │ ├── The Number on The Board.cpp │ │ └── Watching a Movie.cpp │ ├── C Programs 13/ │ │ ├── A Good Contest.cpp │ │ ├── Arpa's Obvious Problem and Mehrad's Terrible Solution.cpp │ │ ├── Arrays.cpp │ │ ├── Arya and Bran.cpp │ │ ├── Bear and Elections.cpp │ │ ├── Business Trip.cpp │ │ ├── Cards.cpp │ │ ├── Code Obfuscation.cpp │ │ ├── Drinks.cpp │ │ ├── Epic Game.cpp │ │ ├── Functions Again.cpp │ │ ├── Generous Kefa.cpp │ │ ├── George and Job.cpp │ │ ├── Godsend.cpp │ │ ├── Ilya and Queries.cpp │ │ ├── Kuriyama Mirai's Stones.cpp │ │ ├── Lights Out.cpp │ │ ├── Little Dima and Equation.cpp │ │ ├── Little Elephant and Bits.cpp │ │ ├── New Skateboard.cpp │ │ ├── Oath of the Night's Watch.cpp │ │ ├── Sort the Array.cpp │ │ ├── Star Sky.cpp │ │ ├── Vanya and Books.cpp │ │ └── Vasya and Digital Root.cpp │ ├── C Programs 14/ │ │ ├── Asphalting Roads.cpp │ │ ├── Bicycle Chain.cpp │ │ ├── Borze.cpp │ │ ├── Building Permutation.cpp │ │ ├── Chess Tourney.cpp │ │ ├── Cormen - The Best Friend of Man.cpp │ │ ├── DZY Loves Sequences.cpp │ │ ├── Dragons.cpp │ │ ├── Drazil and Factorial.cpp │ │ ├── Football.cpp │ │ ├── Helpful Maths.cpp │ │ ├── Increase and Decrease.cpp │ │ ├── Jeff and Digits.cpp │ │ ├── Jzzhu and Children.cpp │ │ ├── Modulo Sum.cpp │ │ ├── Odds and Ends.cpp │ │ ├── Panoramix's Prediction.cpp │ │ ├── Permutation.cpp │ │ ├── Powers of Two.cpp │ │ ├── Queue at the School.cpp │ │ ├── Rectangles.cpp │ │ ├── Supercentral Point.cpp │ │ ├── Tram.cpp │ │ ├── Ultra Fast Mathematician.cpp │ │ └── Vasya and String.cpp │ ├── C Programs 15/ │ │ ├── Army.cpp │ │ ├── Between the Offices.cpp │ │ ├── Cableway.cpp │ │ ├── Ciferia.cpp │ │ ├── Coins.cpp │ │ ├── Divisibility by Eight.cpp │ │ ├── Exams.cpp │ │ ├── Given Length and Sum of Digits.cpp │ │ ├── Ilya and Sticks.cpp │ │ ├── Inna and Huge Candy Matrix.cpp │ │ ├── K-Multiple Free Set.cpp │ │ ├── Kefa and Park.cpp │ │ ├── Mahmoud and Ehab and the MEX.cpp │ │ ├── Mahmoud and Ehab and the bipartiteness.cpp │ │ ├── Mahmoud and Ehab and the xor.cpp │ │ ├── Number of Ways.cpp │ │ ├── Pearls in a Row.cpp │ │ ├── Pie Rules.cpp │ │ ├── Quasi-palindrome.cpp │ │ ├── Soldier and Number Game.cpp │ │ ├── Tanya and Toys.cpp │ │ ├── Team.cpp │ │ ├── The Eternal Immortality.cpp │ │ ├── Triangle.cpp │ │ └── USB Flash Drives.cpp │ ├── C Programs 16/ │ │ ├── Amusing Joke.cpp │ │ ├── Anton and Letters.cpp │ │ ├── Cards with Numbers.cpp │ │ ├── Classroom Watch.cpp │ │ ├── Cupboards.cpp │ │ ├── Dishonest Sellers.cpp │ │ ├── Dubstep.cpp │ │ ├── Easy Number Challenge.cpp │ │ ├── Fox and Snake.cpp │ │ ├── Greg and Array.cpp │ │ ├── Hacking Cypher.cpp │ │ ├── I Wanna Be The Guy.cpp │ │ ├── IQ Test.cpp │ │ ├── Jeff and Periods.cpp │ │ ├── Pashmak and Garden.cpp │ │ ├── Primes or Palindromes.cpp │ │ ├── Quasi Binary.cpp │ │ ├── Sereja and Bottles.cpp │ │ ├── Team Olympiad.cpp │ │ ├── The Fibonacci Segment.cpp │ │ ├── Twins.cpp │ │ ├── Valera and Tubes.cpp │ │ ├── Xenia and Bit Operations.cpp │ │ ├── Xenia and Ringroad.cpp │ │ └── k-String.cpp │ ├── C Programs 17/ │ │ ├── Adding Digits.cpp │ │ ├── Christmas Spruce.cpp │ │ ├── Dreamoon and Wi-Fi.cpp │ │ ├── Exams - 122.cpp │ │ ├── Garden.cpp │ │ ├── Jamie and Alarm Snooze.cpp │ │ ├── Jamie and Interesting Graph.cpp │ │ ├── Kolya and Tanya.cpp │ │ ├── Mashmokh and ACM.cpp │ │ ├── Maximum Splitting.cpp │ │ ├── Minimum Sum.cpp │ │ ├── Modular Exponentiation.cpp │ │ ├── New Year and Domino.cpp │ │ ├── New Year's Eve.cpp │ │ ├── Palindrome Pairs.cpp │ │ ├── Perfect Number.cpp │ │ ├── QAQ.cpp │ │ ├── Seat Arrangements.cpp │ │ ├── Supermarket.cpp │ │ ├── Swap Adjacent Elements.cpp │ │ ├── Tea Queue.cpp │ │ ├── Testing Pants for Sadness.cpp │ │ ├── The World is a Theatre.cpp │ │ ├── Tricky Alchemy.cpp │ │ └── Water the Gardens.cpp │ ├── C Programs 18/ │ │ ├── Art Union.cpp │ │ ├── Bear and Colours.cpp │ │ ├── Cave Painting.cpp │ │ ├── Cloning Toys.cpp │ │ ├── Eternal Victory.cpp │ │ ├── Hard Problem.cpp │ │ ├── Joystick.cpp │ │ ├── K-Special Tables.cpp │ │ ├── Lucky Sum.cpp │ │ ├── Magic Forest.cpp │ │ ├── Marvolo Gaunt's Ring Alternate Solution.cpp │ │ ├── Marvolo Gaunt's Ring.cpp │ │ ├── Not Equal on a Segment.cpp │ │ ├── Perfect Squares.cpp │ │ ├── Petya and Inequiations.cpp │ │ ├── Polo the Penguin and Matrix.cpp │ │ ├── Polo the Penguin and Strings.cpp │ │ ├── Replacement.cpp │ │ ├── Robot Vaccuum Cleaner.cpp │ │ ├── Rumour.cpp │ │ ├── Search for Pretty Integers.cpp │ │ ├── Tom Riddle's Diary.cpp │ │ ├── Two Substrings.cpp │ │ ├── Vladik and Fractions.cpp │ │ └── Woodcutter.cpp │ ├── C Programs 19/ │ │ ├── A Compatible Pair.cpp │ │ ├── A Prosperous Lot.cpp │ │ ├── Almost Identity Permutations.cpp │ │ ├── Amr and Large Array.cpp │ │ ├── Beautiful Sets of Points.cpp │ │ ├── Buggy Robot.cpp │ │ ├── Cellular Network.cpp │ │ ├── Coder.cpp │ │ ├── Diversity.cpp │ │ ├── Guest From The Past.cpp │ │ ├── Hamster Farm.cpp │ │ ├── K-Dominant Character.cpp │ │ ├── Little Artem and Grasshopper.cpp │ │ ├── Longest K-Good Segment.cpp │ │ ├── Love Triangle.cpp │ │ ├── Nuts.cpp │ │ ├── Palindrome Transformation.cpp │ │ ├── Palindromic Supersequence.cpp │ │ ├── Recursive Queries.cpp │ │ ├── Run For Your Prize.cpp │ │ ├── Simple Strings.cpp │ │ ├── The Useless Toy.cpp │ │ ├── Vasya and Socks.cpp │ │ ├── Watchmen.cpp │ │ └── Word Correction.cpp │ ├── C Programs 20/ │ │ ├── Alena and the Heater.cpp │ │ ├── Fafa and Ancient Alphabet.cpp │ │ ├── Fafa and His Company.cpp │ │ ├── Fafa and the Gates.cpp │ │ ├── Fixing Typos.cpp │ │ ├── Gargari and Bishops.cpp │ │ ├── Gargari and Permutations Alternate Solution.cpp │ │ ├── Gargari and Permutations.cpp │ │ ├── Hard Process.cpp │ │ ├── Lisa and Dima.cpp │ │ ├── Love Rescue.cpp │ │ ├── Mashmokh and Numbers.cpp │ │ ├── Non-Secret Cypher.cpp │ │ ├── Olympiad.cpp │ │ ├── Partition.cpp │ │ ├── Petya and His Friends Alternate Solution.cpp │ │ ├── Petya and His Friends.cpp │ │ ├── Phone Numbers.cpp │ │ ├── Pocket Book.cpp │ │ ├── Points on the Line.cpp │ │ ├── Protect Sheep.cpp │ │ ├── String Transformation.cpp │ │ ├── Sum and Replace.cpp │ │ ├── Vile Grasshoppers.cpp │ │ └── Weird Subtraction Process.cpp │ ├── C Programs 21/ │ │ ├── Aramic Script Bitmask Solution.cpp │ │ ├── Aramic Script.cpp │ │ ├── Arithmetic Progression.cpp │ │ ├── Bash and a Tough Math Puzzle.cpp │ │ ├── Consecutive Subsequences.cpp │ │ ├── Cyclic Components.cpp │ │ ├── Divide by Three, Multiply by Two Alternate Solution.cpp │ │ ├── Divide by Three, Multiply by Two.cpp │ │ ├── Dreamoon and Sets.cpp │ │ ├── File Name.cpp │ │ ├── Fox and Box Accumulation.cpp │ │ ├── Ghosts.cpp │ │ ├── Less or Equal.cpp │ │ ├── Little Girl and Maximum XOR.cpp │ │ ├── Lucky Sum of Digits.cpp │ │ ├── Mahmoud and Ehab and another array construction task.cpp │ │ ├── Mahmoud and Ehab and Even Odd Game.cpp │ │ ├── Mahmoud and a Triangle.cpp │ │ ├── Make a Square Alternate Solution.cpp │ │ ├── Make a Square.cpp │ │ ├── Mancala.cpp │ │ ├── Mentors.cpp │ │ ├── Pairs of Lines.cpp │ │ ├── Two Gram.cpp │ │ ├── Valhalla Seige.cpp │ │ └── Wrong Subtraction.cpp │ ├── C Programs 22/ │ │ ├── AND Graph.cpp │ │ ├── Almost Arithmetic Progression.cpp │ │ ├── Antipalindrome Alternate Solution.cpp │ │ ├── Antipalindrome.cpp │ │ ├── Ball.cpp │ │ ├── Bits.cpp │ │ ├── Bookshelves.cpp │ │ ├── Businessman Problems.cpp │ │ ├── Chess Placing.cpp │ │ ├── Correct Solution.cpp │ │ ├── Counting Kangaroos is Fun.cpp │ │ ├── Fruits.cpp │ │ ├── High School Become Human.cpp │ │ ├── Infinity Gauntlet.cpp │ │ ├── Knights of a Polygonal Table.cpp │ │ ├── Letters.cpp │ │ ├── Local Extrema.cpp │ │ ├── Remove Duplicates.cpp │ │ ├── Super Agent.cpp │ │ ├── Switches and Lamps.cpp │ │ ├── Tafurama.cpp │ │ ├── Three Displays Segment Tree Solution.cpp │ │ ├── Three Displays.cpp │ │ └── Useful Decomposition.cpp │ ├── C Programs 23/ │ │ ├── An Impassioned Circulation of Affection.cpp │ │ ├── Another Problem on Strings.cpp │ │ ├── Babaei and Birthday Cake.cpp │ │ ├── Bear and Prime Numbers.cpp │ │ ├── Cirriculum Vitae.cpp │ │ ├── Classy Numbers Precomputing Solution.cpp │ │ ├── Counting Arrays.cpp │ │ ├── Crazy Town.cpp │ │ ├── Find Maximum.cpp │ │ ├── Fish.cpp │ │ ├── Garbage Disposal.cpp │ │ ├── Guest From The Past.cpp │ │ ├── Ice Skater.cpp │ │ ├── Lazyland.cpp │ │ ├── Lesha and Array Splitting.cpp │ │ ├── Lost Array.cpp │ │ ├── Maximum Value.cpp │ │ ├── Maze.cpp │ │ ├── Minesweeper.cpp │ │ ├── Minimum Diameter Tree.cpp │ │ ├── No To Palindromes.cpp │ │ ├── On Number of Decompositions into Multipliers.cpp │ │ ├── Summarise to Powers of Two.cpp │ │ ├── The Fair Nut and String.cpp │ │ └── The Meaningless Game.cpp │ └── C Programs 24/ │ ├── Brutality.cpp │ ├── Connect.cpp │ ├── Div Times Mod.cpp │ ├── Diverse Garland.cpp │ ├── Division and Union.cpp │ ├── Finite or Not.cpp │ ├── Illya and Escalator.cpp │ ├── Increasing by Modulo.cpp │ ├── Nice Garland.cpp │ ├── Planning the Expedition.cpp │ ├── Playing Piano.cpp │ ├── Posterized.cpp │ ├── Powers of Two.cpp │ ├── Splitting into Digits.cpp │ ├── Stages.cpp │ ├── Tanya and Candies.cpp │ ├── The Way to Home.cpp │ ├── Vanya and Label.cpp │ ├── Where_Do_I_Turn.c │ └── Zero Quantity Maximisation.cpp ├── Contests/ │ ├── 463 Div 1 + 2 ICM Technex/ │ │ ├── Explanations/ │ │ │ └── Team Work Explanation.txt │ │ └── Programs/ │ │ └── Team Work.cpp │ ├── 607 Div 1 + 2/ │ │ ├── Explanations/ │ │ │ ├── Azamon Web Services Explanation.txt │ │ │ ├── Beingawesomeism Explanation.txt │ │ │ ├── Cut and Paste Explanation.txt │ │ │ ├── Jeremy Bearimy Explanation.txt │ │ │ └── Suffix Three Explanation.txt │ │ └── Programs/ │ │ ├── Azamon Web Services.cpp │ │ ├── Beingawesomeism.cpp │ │ ├── Cut and Paste.cpp │ │ ├── Jeremy Bearimy.cpp │ │ └── Suffix Three.cpp │ ├── 609 Div 2/ │ │ ├── Explanations/ │ │ │ └── Equation Explanation.txt │ │ └── Programs/ │ │ └── Equation.cpp │ ├── Avito Code Challenge 2018/ │ │ ├── Explanations/ │ │ │ ├── Antipalindrome Alternate Solution Explanation.txt │ │ │ ├── Antipalindrome Explanation.txt │ │ │ ├── Bookshelves Explanation.txt │ │ │ ├── Businessman Problems Explanation.txt │ │ │ └── Useful Decomposition Explanation.txt │ │ └── Programs/ │ │ ├── Antipalindrome Alternate Solution.cpp │ │ ├── Antipalindrome.cpp │ │ ├── Bookshelves.cpp │ │ ├── Businessman Problems.cpp │ │ └── Useful Decomposition.cpp │ ├── Avito Cool Challenge 2018/ │ │ ├── Explanation/ │ │ │ ├── Colourful Bricks Explanation.txt │ │ │ └── Definite Game Explanation.txt │ │ └── Programs/ │ │ ├── Colourful Bricks.cpp │ │ └── Definite Game.cpp │ ├── Barcelona Bootcamp 2018/ │ │ ├── Explanation/ │ │ │ ├── Maximum Sum of Digits Explanation.txt │ │ │ ├── Phone Numbers Explanation.txt │ │ │ └── Social Circles Explanation.txt │ │ └── Programs/ │ │ ├── Maximum Sum of Digits.cpp │ │ ├── Phone Numbers.cpp │ │ └── Social Circles.cpp │ ├── CodeForces Global Round 1/ │ │ ├── Explanations/ │ │ │ ├── Magic Stones Explanation.txt │ │ │ ├── Meaningless Operations Explanation.txt │ │ │ ├── Parity Explanation.txt │ │ │ └── Tape Explanation.txt │ │ └── Programs/ │ │ ├── Magic Stones.cpp │ │ ├── Meaningless Operations.cpp │ │ ├── Parity.cpp │ │ └── Tape.cpp │ ├── CodeForces Global Round 3/ │ │ ├── Explanations/ │ │ │ ├── Another One Bites the Dust Explanation.txt │ │ │ ├── Born This Way Explanation.txt │ │ │ ├── Crazy Diamond Explanation.txt │ │ │ └── Dirty Deeds Done Dirt Cheap Explanation.txt │ │ ├── Programs/ │ │ │ ├── Another One Bites the Dust.cpp │ │ │ ├── Born This Way.cpp │ │ │ ├── Crazy Diamond.cpp │ │ │ └── Dirty Deeds Done Dirt Cheap.cpp │ │ └── Rough Notes Link │ ├── CodeForces Global Round 5/ │ │ ├── Explanations/ │ │ │ ├── Balanced Rating Changes Explanation.txt │ │ │ └── Balanced Tunnel Explanation.txt │ │ └── Programs/ │ │ ├── Balanced Rating Changes.cpp │ │ └── Balanced Tunnel.cpp │ ├── Dasha Code Championship Elimination Round 2019/ │ │ ├── Explanations/ │ │ │ ├── Cows and Snacks Explanation.txt │ │ │ ├── Koala and Lights Explanation │ │ │ ├── Paint The Digits Explanation │ │ │ └── Paint Your Numbers Explanation │ │ ├── Programs/ │ │ │ ├── Cows and Snacks.cpp │ │ │ ├── Koala and Lights.cpp │ │ │ ├── Paint The Digits.cpp │ │ │ ├── Paint The Numbers.cpp │ │ │ └── Paint Your Numbers.cpp │ │ └── Rough Notes │ ├── Div 1 492/ │ │ ├── Explanations/ │ │ │ ├── Game 995 Explanation.txt │ │ │ ├── Leaving the Bar Explanation.txt │ │ │ └── Suit and Tie Explanation.txt │ │ └── Programs/ │ │ ├── Game 995D.cpp │ │ ├── Leaving The Bar.cpp │ │ └── Suit and Tie.cpp │ ├── Div 2 12/ │ │ ├── Explanations/ │ │ │ ├── Ball Explanation.txt │ │ │ ├── Correct Solution Explanation.txt │ │ │ ├── Fruits Explanation.txt │ │ │ └── Super Agent Explanation.txt │ │ └── Programs/ │ │ ├── Ball.cpp │ │ ├── Correct Solution.cpp │ │ ├── Fruits.cpp │ │ └── Super Agent.cpp │ ├── Div 2 136/ │ │ ├── Explanations/ │ │ │ ├── Little Elephant And Array Segment Tree Explanation.txt │ │ │ ├── Little Elephant and Arrays Explanation.txt │ │ │ ├── Little Elephant and Function Explanation.txt │ │ │ ├── Little Elephant and Numbers Explanation.txt │ │ │ └── Little Elephant and Problem Explanation.txt │ │ └── Programs/ │ │ ├── Little Elephant And Array Segment Tree Solution.cpp │ │ ├── Little Elephant and Array.cpp │ │ ├── Little Elephant and Function.cpp │ │ ├── Little Elephant and Numbers.cpp │ │ └── Little Elephant and Problem.cpp │ ├── Div 2 197/ │ │ ├── Explanations/ │ │ │ ├── Helpful Maths Explanation.txt │ │ │ ├── Xenia and Bit Operations Explanation.txt │ │ │ ├── Xenia and Ringroad Explanation.txt │ │ │ └── Xenia and Weights Explanation.txt │ │ └── Programs/ │ │ ├── Helpful Maths.cpp │ │ ├── Xenia and Bit Operations.cpp │ │ ├── Xenia and Ringroad.cpp │ │ └── Xenia and Weights.cpp │ ├── Div 2 205/ │ │ ├── Explanation/ │ │ │ ├── Little Elephant and Cards Explanation.txt │ │ │ └── Little Elephant and Rozdil - Explanation.txt │ │ └── Programs/ │ │ ├── Little Elephant and Cards.cpp │ │ ├── Little Elephant and Sorting.cpp │ │ └── Little_Elephant_Rozdil.c │ ├── Div 2 261/ │ │ ├── Explanation/ │ │ │ ├── Pashmak and Buses Explanation.txt │ │ │ ├── Pashmak and Buses.cpp │ │ │ ├── Pashmak and Flowers - Explanation.txt │ │ │ ├── Pashmak and Garden Explanation.txt │ │ │ ├── Pashmak and Graph Explanation.txt │ │ │ └── Pashmak and Parmida's Problem Explanation.txt │ │ └── Programs/ │ │ ├── Pashmak and Buses.cpp │ │ ├── Pashmak and Garden.cpp │ │ ├── Pashmak and Graph.cpp │ │ ├── Pashmak and Parmida's Problem.cpp │ │ └── Pashmak_and_Flowers.c │ ├── Div 2 276/ │ │ ├── Explanations/ │ │ │ ├── Little Girl and Maximum Sum Explanation.txt │ │ │ ├── Little Girl and Maximum XOR Explanation.txt │ │ │ └── Lunch Rush Explanation.txt │ │ └── Programs/ │ │ ├── Little Girl and Maximum Sum.cpp │ │ ├── Little Girl and Maximum XOR.cpp │ │ └── Lunch Rush.cpp │ ├── Div 2 321/ │ │ └── Programs/ │ │ ├── Kefa and Company.cpp │ │ ├── Kefa and Park.cpp │ │ └── Kefa_and_First_Step.c │ ├── Div 2 367/ │ │ ├── Explanation/ │ │ │ ├── Hard Problem Explanation.txt │ │ │ └── Interesting Drink Explanation.txt │ │ └── Programs/ │ │ ├── Hard Problem.cpp │ │ └── Interesting Drink.cpp │ ├── Div 2 371/ │ │ ├── Explanations/ │ │ │ ├── Filya and Homework - Explanation.txt │ │ │ ├── Meeting of Old Friends - Explanation.txt │ │ │ └── Sonya and Queries Explanation.txt │ │ └── Programs/ │ │ ├── Filya_and_Homework.c │ │ ├── Meeting_of_Old_Friends.c │ │ └── Sonya and Queries.cpp │ ├── Div 2 461/ │ │ ├── Explanations/ │ │ │ └── Cave Paintings Explanation.txt │ │ └── Programs/ │ │ └── Cave Paintings.cpp │ ├── Div 2 464/ │ │ └── Programs/ │ │ └── Love Triangle.cpp │ ├── Div 2 473/ │ │ ├── Explanation/ │ │ │ ├── Mahmoud and Ehab and Another Array Construction Task Explanation.txt │ │ │ └── Mahmoud and Ehab and Even Odd Game Explanation.txt │ │ └── Programs/ │ │ ├── Mahmoud and Ehab and Another Array Construction Task.cpp │ │ └── Mahmoud and Ehab and Even Odd Game.cpp │ ├── Div 2 478/ │ │ ├── Explanations/ │ │ │ ├── Aramic Script Bitmask Solution.txt │ │ │ ├── Aramic Script Explanation.txt │ │ │ ├── Ghosts Explanation.txt │ │ │ ├── Mancala Explanation.txt │ │ │ └── Valhalla Siege Explanation.txt │ │ └── Programs/ │ │ ├── Aramic Script Bitmask Solution.cpp │ │ ├── Aramic Script.cpp │ │ ├── Ghosts.cpp │ │ ├── Mancala.cpp │ │ └── Valhalla Siege.cpp │ ├── Div 2 485/ │ │ ├── Explanations/ │ │ │ ├── AND Graph Explanation.txt │ │ │ ├── Fair Explanation.txt │ │ │ ├── High Schooll Become Human Explanation.txt │ │ │ ├── Infinity Gauntlet Explanation.txt │ │ │ ├── Petr and Permutations Explanation.txt │ │ │ ├── Three Displays Explanation.txt │ │ │ └── Three Displays Segment Tree Solution Explanation.txt │ │ └── Programs/ │ │ ├── AND Graph.cpp │ │ ├── Fair.cpp │ │ ├── High School Become Human.cpp │ │ ├── Infinity Gauntlet.cpp │ │ ├── Petr and Permutations.cpp │ │ ├── Three Displays Segment Tree Solution.cpp │ │ └── Three Displays.cpp │ ├── Div 2 489/ │ │ ├── Explanations/ │ │ │ ├── Nastya Studies Informatics Explanation.txt │ │ │ ├── Nastya and Game Explanation.txt │ │ │ ├── Nastya and King Shamans Alternate Solution Explanation.txt │ │ │ ├── Nastya and King Shamans Explanation.txt │ │ │ ├── Nastya and a Wardrobe Explanation.txt │ │ │ └── Nastya and an Array Explanation.txt │ │ └── Programs/ │ │ ├── Nastya Studies Informatics.cpp │ │ ├── Nastya and Game.cpp │ │ ├── Nastya and King-Shamans Alternate Solution.cpp │ │ ├── Nastya and King-Shamans.cpp │ │ ├── Nastya and a Wardrobe.cpp │ │ └── Nastya and an Array.cpp │ ├── Div 2 491/ │ │ ├── Explanations/ │ │ │ ├── Bishwock Explanation.txt │ │ │ ├── Bus Number Explanation.txt │ │ │ ├── Candies Explanation.txt │ │ │ ├── Getting an A Explanation.txt │ │ │ └── If At First You Don't Succeed Explanation.txt │ │ └── Programs/ │ │ ├── Bishwock.cpp │ │ ├── Bus Number.cpp │ │ ├── Candies.cpp │ │ ├── Getting an A.cpp │ │ └── If At First You Don't Succeed.cpp │ ├── Div 2 492/ │ │ ├── Explanation/ │ │ │ ├── Game 995 Explanation.txt │ │ │ ├── Hit the Lottery Explanation.txt │ │ │ ├── Leaving the Bar Explanation.txt │ │ │ ├── Suit and Tie Explanation.txt │ │ │ ├── Tesla Explanation.txt │ │ │ └── World Cup Explanation.txt │ │ └── Programs/ │ │ ├── Game 995D.cpp │ │ ├── Hit the Lottery.cpp │ │ ├── Leaving The Bar.cpp │ │ ├── Suit and Tie.cpp │ │ ├── Tesla.cpp │ │ └── World Cup.cpp │ ├── Div 2 497/ │ │ ├── Explanation/ │ │ │ ├── Reorder the Array Explanation.txt │ │ │ ├── Romaji Explanation.txt │ │ │ └── Turn The Rectangle Explanation.txt │ │ └── Programs/ │ │ ├── Reorder the Array.cpp │ │ ├── Romaji.cpp │ │ └── Turn the Rectangle.cpp │ ├── Div 2 508/ │ │ ├── Explanation/ │ │ │ ├── Equality Explanation.txt │ │ │ ├── Gambling Explanation.txt │ │ │ └── Non Coprime Partition Explanation.txt │ │ └── Programs/ │ │ ├── Equality.cpp │ │ ├── Gambling.cpp │ │ └── Non Coprime Partition.cpp │ ├── Div 2 511/ │ │ ├── Explanation/ │ │ │ ├── Enlarge GCD Explanation.txt │ │ │ └── Little C Loves 3 I Explanation.txt │ │ └── Programs/ │ │ └── Little C Loves 3 I.cpp │ ├── Div 2 533/ │ │ ├── Explanations/ │ │ │ ├── Ayoub and Lost Array Explanation.txt │ │ │ ├── Ayoub and Lost Array Matrix Exponentiation Explanation.txt │ │ │ ├── Salem and Sticks Explanation.txt │ │ │ └── Zuhair and Strings Explanation.txt │ │ └── Programs/ │ │ ├── Ayoub and Lost Array Matrix Exponentiation.cpp │ │ ├── Ayoub and Lost Array.cpp │ │ ├── Salem and Sticks.cpp │ │ └── Zuhair and Strings.cpp │ ├── Div 2 538/ │ │ ├── Explanations/ │ │ │ ├── Arithmetic Progression Explanation.txt.txt │ │ │ ├── Flood Fill Explanation.txt │ │ │ ├── Got Any Grapes Explanation.txt │ │ │ ├── Please Another Queries on Array Explanation.txt │ │ │ ├── Trailing Loves Explanation.txt │ │ │ ├── Yet Another Subarray Alternate Solution Explanation.txt │ │ │ └── Yet Another Subarray Explanation.txt │ │ └── Programs/ │ │ ├── Arithmetic Progression.cpp │ │ ├── Flood Fill.cpp │ │ ├── Got Any Grapes.cpp │ │ ├── Please Another Queries on Array.cpp │ │ ├── Trailing Loves.cpp │ │ ├── Yet Another Subarray Problem Alternate Solution.cpp │ │ └── Yet Another Subarray Problem.cpp │ ├── Div 2 539/ │ │ ├── Explanations/ │ │ │ ├── Sasha and A Bit of Relax Explanation.txt │ │ │ ├── Sasha and His Trip Explanation.txt │ │ │ ├── Sasha and Magnetic Machine Explanation.txt │ │ │ └── Sasha and One More Name Explanation.txt │ │ └── Programs/ │ │ ├── Sasha and A Bit of Relax.cpp │ │ ├── Sasha and His Trip.cpp │ │ ├── Sasha and Magnetic Machine.cpp │ │ └── Sasha and One More Name.cpp │ ├── Div 2 546/ │ │ ├── Explanations/ │ │ │ ├── Nastya is Playing Computer Games Explanation.txt │ │ │ └── Nastya is Transposing Matrices Explanation.txt │ │ └── Programs/ │ │ ├── Nastya is Playing Computer Games.cpp │ │ └── Nastya is Transposing Matrices.cpp │ ├── Div 2 554/ │ │ ├── Explanations/ │ │ │ └── Neko Does Math Explanation.txt │ │ └── Programs/ │ │ └── Neko Does Math.cpp │ ├── Div 2 562/ │ │ ├── Explanations/ │ │ │ ├── Good Triple Explanation.txt │ │ │ └── Pairs Explanation.txt │ │ ├── Programs/ │ │ │ ├── Good Triple.cpp │ │ │ ├── Increasing by Modulo.cpp │ │ │ └── Pairs.cpp │ │ └── Rough Notes Link │ ├── Div 2 566/ │ │ ├── Explanations/ │ │ │ ├── Filing Shapes Explanation.txt │ │ │ └── Plus From Picture Explanation.txt │ │ ├── Programs/ │ │ │ ├── Filing Shapes.cpp │ │ │ └── Plus From Picture.cpp │ │ └── Rough Notes Link │ ├── Div 2 585/ │ │ ├── Explanations/ │ │ │ ├── Swap Letters Explanation.txt │ │ │ ├── The Number of Products Explanation.txt │ │ │ └── Yellow Cards Explanation │ │ ├── Programs/ │ │ │ ├── Swap Letters.cpp │ │ │ ├── The Number of Products.cpp │ │ │ └── Yellow Cards.cpp │ │ └── Rough Notes │ ├── Div 2 588/ │ │ ├── Explanations/ │ │ │ ├── Anadi and Domino Explanation.txt │ │ │ ├── Ania and Minimizing Explanation.txt │ │ │ ├── Dawid and Bags of Candies Explanation.txt │ │ │ ├── Kamil and Making a Stream Explanation.txt │ │ │ ├── Konrad and Company Evaluation Explanation.txt │ │ │ └── Marcin and Training Camp Explanation.txt │ │ └── Programs/ │ │ ├── Anadi and Domino.cpp │ │ ├── Ania and Minimizing.cpp │ │ ├── Dawid and Bags of Candies.cpp │ │ ├── Kamil and Making a Stream.cpp │ │ ├── Konrad and Company Evaluation.cpp │ │ └── Marcin and Training Camp.cpp │ ├── Div 2 589/ │ │ ├── Explanations/ │ │ │ ├── Complete Tripartite Explanation.txt │ │ │ ├── Distinct Digits Explanation.txt │ │ │ ├── Filing the Grid Explanation.txt │ │ │ └── Primes and Multiplication Explanation.txt │ │ └── Programs/ │ │ ├── Complete Tripartite.cpp │ │ ├── Distinct Digits.cpp │ │ ├── Filing the Grid.cpp │ │ └── Primes and Multiplication.cpp │ ├── Div 2 592/ │ │ ├── Explanations/ │ │ │ ├── Minimizing Difference Explanation.txt │ │ │ ├── Pens and Pencils Explanation.txt │ │ │ ├── Rooms and Staircases Explanation.txt │ │ │ └── The Football Season Explanation.txt │ │ └── Programs/ │ │ ├── Minimizing Difference.cpp │ │ ├── Pens and Pencils.cpp │ │ ├── Rooms and Staircases.cpp │ │ └── The Football Season.cpp │ ├── Div 2 596/ │ │ ├── Explanations/ │ │ │ ├── Forgetting Things Explanation.txt │ │ │ ├── P Binary Explanation.txt │ │ │ ├── Power Products Explanation.txt │ │ │ └── TV Subscriptions Explanation.txt │ │ └── Programs/ │ │ ├── Forgetting Things.cpp │ │ ├── P-Binary.cpp │ │ ├── Power Products.cpp │ │ └── TV Subscriptions.cpp │ ├── Div 2 597/ │ │ ├── Explanations/ │ │ │ ├── Constanze's Machine Explanation.txt │ │ │ ├── Good Ol Number Colouring Explanation.txt │ │ │ └── Restricted RPS Explanation.txt │ │ └── Programs/ │ │ ├── Constanze's Machine.cpp │ │ ├── Good Ol Number Colouring.cpp │ │ └── Restricted RPS.cpp │ ├── Div 2 599/ │ │ ├── Explanations/ │ │ │ ├── Character Swap Explanation.txt │ │ │ ├── Maximum Square Explanation.txt │ │ │ └── Tile Painting Explanation.txt │ │ └── Programs/ │ │ ├── Character Swap.cpp │ │ ├── Maximum Square.cpp │ │ └── Tile Painting.cpp │ ├── Div 2 600/ │ │ ├── Explanations/ │ │ │ ├── Antenna Coverage Explanation.txt.txt │ │ │ ├── Harmonious Graph Explanation.txt │ │ │ ├── Silly Mistakes Explanation.txt │ │ │ ├── Single Push Explanation.txt │ │ │ └── Sweets Eating Explanation.txt │ │ └── Programs/ │ │ ├── Antenna Coverage.cpp │ │ ├── Harmonious Graph.cpp │ │ ├── Silly Mistakes.cpp │ │ ├── Single Push.cpp │ │ └── Sweets Eating.cpp │ ├── Div 2 608/ │ │ └── Programs/ │ │ └── Shwarma Tent.cpp │ ├── Div 2 85/ │ │ ├── Explanation/ │ │ │ ├── Petya and Divisors Explanation.txt │ │ │ ├── Petya and Inequiations Explanation.txt │ │ │ └── Petya and Strings Explanation.txt │ │ └── Programs/ │ │ ├── Petya and Divisors.cpp │ │ ├── Petya and Inequiations.cpp │ │ └── Petya and Strings.cpp │ ├── Div 3 479/ │ │ ├── Explanations/ │ │ │ ├── Consecutive Subsequences Explanation.txt │ │ │ ├── Cyclic Components Explanation.txt │ │ │ ├── Divide by Three Multiply by Two Alternate Solution Explanation.txt │ │ │ ├── Divide by Three, Multiply by Two Explanation.txt │ │ │ ├── Less or Equal Explanation.txt │ │ │ ├── Two Gram Explanation.txt │ │ │ └── Wrong Subtraction Explanation.txt │ │ └── Programs/ │ │ ├── Consecutive Subsequences.cpp │ │ ├── Cyclic Components.cpp │ │ ├── Divide by Three, Multiply by Two Alternate Solution.cpp │ │ ├── Divide by Three, Multiply by Two.cpp │ │ ├── Less or Equal.cpp │ │ ├── Two Gram.cpp │ │ └── Wrong Subtraction.cpp │ ├── Div 3 481/ │ │ ├── Explanations/ │ │ │ ├── Almost Arithmetic Progression Explanation.txt │ │ │ ├── File Name Explanation.txt │ │ │ ├── Letters Explanation.txt │ │ │ ├── Mentors Explanation.txt │ │ │ └── Remove Duplicates Explanation.txt │ │ └── Programs/ │ │ ├── Almost Arithmetic Progression.cpp │ │ ├── File Name.cpp │ │ ├── Letters.cpp │ │ ├── Mentors.cpp │ │ └── Remove Duplicates.cpp │ ├── Div 3 486/ │ │ ├── Explanation/ │ │ │ ├── Diverse Team Explanation.txt │ │ │ ├── Divisibility by 25 Explanation.txt │ │ │ ├── Equal Sums Explanation.txt │ │ │ ├── Points and Powers of Two Explanation.txt │ │ │ └── Substring Sort Explanation.txt │ │ └── Programs/ │ │ ├── Diverse Team.cpp │ │ ├── Divisibility by 25.cpp │ │ ├── Equal Sums.cpp │ │ ├── Points and Powers of Two.cpp │ │ └── Substring Sort.cpp │ ├── Div 3 490/ │ │ ├── Explanations/ │ │ │ ├── Alphabetic Removals Explanation.txt │ │ │ ├── Equalise the Remainders Explanation.txt │ │ │ ├── Mishika and Contests Explanation.txt │ │ │ ├── Reachability from Capital Explanation.txt │ │ │ └── Reversing Encryption Explanation.txt │ │ └── Programs/ │ │ ├── Alphabetic Removals.cpp │ │ ├── Equalise the Remainders.cpp │ │ ├── Mishika and Contests.cpp │ │ ├── Reachability from Capital.cpp │ │ └── Reversing Encryption.cpp │ ├── Div 3 494/ │ │ ├── Explanations/ │ │ │ ├── Binary String Constructing Explanation.txt │ │ │ ├── Coins and Queries Explanation.txt │ │ │ ├── Intense Heat Explanation.txt │ │ │ └── Polycarp's Pockets Explanation.txt │ │ └── Programs/ │ │ ├── Binary String Constructing.cpp │ │ ├── Coins and Queries.cpp │ │ ├── Intense Heat.cpp │ │ └── Polycarp's Pockets.cpp │ ├── Div 3 521/ │ │ ├── Explanations/ │ │ │ ├── Cutting Out Explanation.txt │ │ │ ├── Disturbed People.txt │ │ │ ├── Frog Jumping.txt │ │ │ ├── Good Array.txt │ │ │ └── Thematic Contests Explanation.txt │ │ └── Programs/ │ │ ├── Cutting Out.cpp │ │ ├── Disturbed People.cpp │ │ ├── Frog Jumping.cpp │ │ ├── Good Array.cpp │ │ ├── Pictures with Kittens (Easy Version).cpp │ │ └── Thematic Contests.cpp │ ├── Div 3 531/ │ │ ├── Explanations/ │ │ │ ├── Array K Colouring Explanation.txt │ │ │ └── Balanced Ternary String Explanation.txt │ │ └── Programs/ │ │ ├── Array K Colouring.cpp │ │ └── Balanced Ternary String.cpp │ ├── Div 3 547/ │ │ ├── Explanations/ │ │ │ ├── Colored Boots Explanation.txt │ │ │ ├── Game 23 Explanation.txt │ │ │ ├── Maximal Continuous Rest Explanation.txt │ │ │ ├── Polycarp Restores Permutation Explanation.txt │ │ │ ├── Privatization of Roads in Berland Explanation.txt │ │ │ ├── Same Sum Blocks Explanation.txt │ │ │ └── Superhero Battle Explanation.txt │ │ └── Programs/ │ │ ├── Colored Boots.cpp │ │ ├── Game 23.cpp │ │ ├── Maximal Continuous Rest.cpp │ │ ├── Polycarp Restores Permutation.cpp │ │ ├── Privatization of Roads in Berland.cpp │ │ ├── Same Sum Blocks.cpp │ │ └── Superhero Battle.cpp │ ├── Div 3 590/ │ │ ├── Explanations/ │ │ │ ├── Special Permutations Explanation.txt │ │ │ └── Yet Another Substring Reverse Explanation.txt │ │ └── Programs/ │ │ ├── Special Permutations.cpp │ │ └── Yet Another Substring Reverse.cpp │ ├── Div 3 593/ │ │ ├── Explanations/ │ │ │ ├── Books Exchange Explanation.txt │ │ │ ├── By Elevator or Stairs Explanation.txt │ │ │ ├── Good Numbers Explanation.txt │ │ │ └── Yet Another Dividing Into Teams Explanation.txt │ │ └── Programs/ │ │ ├── Books Exchange.cpp │ │ ├── Elevator or Stairs.cpp │ │ ├── Good Numbers.cpp │ │ └── Yet Another Dividing Into Teams.cpp │ ├── Div 3 595/ │ │ ├── Explanations/ │ │ │ ├── Books Exchange Explanation.txt │ │ │ ├── Good Numbers Explanation.txt │ │ │ └── Yet Another Dividing Into Teams Explanation.txt │ │ └── Programs/ │ │ ├── Books Exchange.cpp │ │ ├── Good Numbers.cpp │ │ └── Yet Another Dividing Into Teams.cpp │ ├── Div 3 598/ │ │ ├── Explanations/ │ │ │ ├── Equalizing Two Strings Explanation.txt │ │ │ ├── Minimize the Permutation Explanation.txt │ │ │ └── Payment Without Change Explanation.txt │ │ └── Programs/ │ │ ├── Binary String Minimizing.cpp │ │ ├── Equalizing Two Strings.cpp │ │ ├── Minimize the Permutation.cpp │ │ └── Payment Without Change.cpp │ ├── Educational Round 11/ │ │ ├── Explanations/ │ │ │ ├── Co Prime Array Explanation.txt │ │ │ ├── Hard Process Explanation.txt │ │ │ └── Number of Parallelograms Explanation.txt │ │ └── Programs/ │ │ ├── Co Prime Array.cpp │ │ ├── Hard Process.cpp │ │ └── Number of Parallelograms.cpp │ ├── Educational Round 32/ │ │ ├── Explanations/ │ │ │ ├── Almost Identity Permutations Explanation.txt │ │ │ ├── Buggy Robot.cpp │ │ │ ├── K-Dominant Character Explanation.txt │ │ │ └── Local Extrema Explanation.txt │ │ └── Programs/ │ │ ├── Almost Identity Permutations.cpp │ │ ├── Buggy Robot.cpp │ │ ├── K-Dominant Character.cpp │ │ └── Local Extrema.cpp │ ├── Educational Round 37/ │ │ ├── Explanation/ │ │ │ ├── Connected Components Explanation.txt.txt │ │ │ ├── List of Integer Explanation.txt │ │ │ ├── Sum and Replace Explanation.txt │ │ │ ├── Swap Adjacent Elements Explanation.txt │ │ │ ├── Tanks Explanation.txt.txt │ │ │ ├── Tea Queue Explanation.txt │ │ │ └── Water the Gardens Explanation.txt │ │ └── Programs/ │ │ ├── Connected Components.cpp │ │ ├── List of Integers.cpp │ │ ├── Sum and Replace.cpp │ │ ├── Swap Adjacent Elements.cpp │ │ ├── Tanks.cpp │ │ ├── Tea Queue.cpp │ │ └── Water the Gardens.cpp │ ├── Educational Round 44/ │ │ ├── Explanations/ │ │ │ ├── Chess Placing Explanation.txt │ │ │ └── Switches and Lamps Explanation.txt │ │ └── Programs/ │ │ ├── Chess Placing.cpp │ │ └── Switches and Lamps.cpp │ ├── Educational Round 46/ │ │ ├── Explanations/ │ │ │ ├── CodeHorses T Shirts Explanation.txt │ │ │ ├── Covered Points Count Explanation.txt │ │ │ └── Yet Another Problem on Subsequence Explanation.txt │ │ └── Programs/ │ │ ├── CodeHorses T Shirts.cpp │ │ ├── Covered Points Count.cpp │ │ └── Yet Another Problem on Subsequence.cpp │ ├── Educational Round 51/ │ │ ├── Explanation/ │ │ │ ├── Bicolourings Explanation.txt │ │ │ ├── Relatively Prime Pairs Explanation.txt │ │ │ ├── Vasya and Multisets Explanation.txt │ │ │ └── Vasya and Password Explanation.txt │ │ └── Programs/ │ │ ├── Bicolourings.cpp │ │ ├── Relatively Prime Pairs.cpp │ │ ├── Vasya and Multisets.cpp │ │ └── Vasya and Password.cpp │ ├── Educational Round 52/ │ │ ├── Explanations/ │ │ │ ├── Vasya and Chocolates Explanation.txt │ │ │ └── Vasya and Isolated Vertices Explanation.txt │ │ └── Programs/ │ │ ├── Vasya and Chocolates.cpp │ │ └── Vasya and Isolated Vertices.cpp │ ├── Educational Round 54/ │ │ ├── Explanation/ │ │ │ ├── Divisor Subtraction Explanation.txt │ │ │ ├── Meme Problem Explanation.txt │ │ │ └── Minimizing the String Explanation.txt │ │ └── Programs/ │ │ ├── Divisor Subtraction.cpp │ │ ├── Meme Problem.cpp │ │ └── Minimizing the String.cpp │ ├── Educational Round 55/ │ │ ├── Explanation/ │ │ │ └── Increasing Frequency Explanation.txt │ │ └── Programs/ │ │ └── Increasing Frequency.cpp │ ├── Educational Round 56/ │ │ ├── Explanations/ │ │ │ ├── Beautiful Graph Explanation.txt │ │ │ ├── Dice Rolling Explanation.txt │ │ │ ├── Letters Rearranging Explanation.txt │ │ │ └── Mishka and Last Exam Explanation.txt │ │ └── Programs/ │ │ ├── Beautiful Graph.cpp │ │ ├── Dice Rolling.cpp │ │ ├── Letters Rearranging.cpp │ │ └── Mishka and Last Exam.cpp │ ├── Educational Round 60/ │ │ ├── Explanations/ │ │ │ ├── Best Subsegment Explanation.txt │ │ │ └── Emotes Explanation.txt │ │ └── Programs/ │ │ ├── Best Subsegment.cpp │ │ └── Emotes.cpp │ ├── Educational Round 62/ │ │ ├── Explanations/ │ │ │ ├── Detective Book Explanation.txt │ │ │ ├── Good Strings Explanation.txt │ │ │ ├── Minimum Triangulation Explanation.txt │ │ │ └── Playlist Explanation.txt │ │ └── Programs/ │ │ ├── Detective Book.cpp │ │ ├── Good Strings.cpp │ │ ├── Minimum Triangulation.cpp │ │ └── Playlist.cpp │ ├── Educational Round 69/ │ │ ├── Explanations/ │ │ │ ├── Array Splitting Explanation.txt │ │ │ ├── DIY Wooden Ladder Explanation.txt │ │ │ └── Pillars Explanation.txt │ │ ├── Programs/ │ │ │ ├── Array Splitting.cpp │ │ │ ├── DIY Wooden Ladder.cpp │ │ │ └── Pillars.cpp │ │ └── Rough Notes Link │ ├── Educational Round 73/ │ │ ├── Explanations/ │ │ │ ├── 2048 Game Explanation.txt │ │ │ ├── Game With String Explanation.txt │ │ │ ├── Knights Explanation.txt │ │ │ ├── Make The Fence Great Again Explanation.txt │ │ │ └── Perfect Team Explanation.txt │ │ └── Programs/ │ │ ├── 2048 Game.cpp │ │ ├── Game With String.cpp │ │ ├── Knights.cpp │ │ ├── Make The Fence Great Again.cpp │ │ └── Perfect Team.cpp │ ├── Educational Round 74/ │ │ ├── Explanations/ │ │ │ ├── AB String Explanation.txt │ │ │ ├── Keyboard Purchase Explanation.txt │ │ │ ├── Kill Em All Explanation.txt │ │ │ └── Prime Subtraction Explanation.txt │ │ └── Programs/ │ │ ├── AB String.cpp │ │ ├── Keyboard Purchase.cpp │ │ ├── Kill Em All Explanation.txt │ │ └── Prime Subtraction.cpp │ ├── Educational Round 77/ │ │ ├── Explanations/ │ │ │ └── Yet Another Monster Killing Problem Explanation.txt │ │ └── Programs/ │ │ ├── Dominated Subarray.cpp │ │ ├── Magic Stick.cpp │ │ ├── Two Rival Students.cpp │ │ └── Yet Another Monster Killing Problem.cpp │ ├── Lyft Level 5 Challenge 2018 - Elimination Round/ │ │ ├── Explanation/ │ │ │ ├── Divisors.txt │ │ │ ├── King Escape Explanation.txt │ │ │ ├── Permutation Game Explanation.txt │ │ │ └── Square Difference Explanation.txt │ │ └── Programs/ │ │ ├── Divisors.cpp │ │ ├── King Escape.cpp │ │ ├── Permutation Game.cpp │ │ └── Square Difference.cpp │ ├── Mail.Ru Cup 2018 Round 1/ │ │ ├── Explanation/ │ │ │ ├── Appending Mex.txt │ │ │ ├── Candies Distribution.txt │ │ │ └── Changing the Array Explanation.txt │ │ └── Programs/ │ │ ├── Appending Mex.cpp │ │ ├── Candy Distribution.cpp │ │ └── Changing the Array.cpp │ ├── Manthan 2018/ │ │ ├── Explanation/ │ │ │ ├── Equalize Explanation.txt │ │ │ ├── Packets Explanation.txt │ │ │ ├── Reach Median Explanation.txt │ │ │ └── Valid BFS Explanation.txt │ │ └── Programs/ │ │ ├── Equalize.cpp │ │ ├── Packets.cpp │ │ ├── Reach Median.cpp │ │ └── Valid BFS.cpp │ ├── Moscow Team Olympiad 2018/ │ │ ├── Explanation/ │ │ │ ├── Equations of Mathematical Magic Explanation.txt │ │ │ ├── Make a Triangle Explanation.txt │ │ │ └── Oh Those Palindromes Explanation.txt │ │ └── Programs/ │ │ ├── Equations of Mathematical Magic.cpp │ │ ├── Make a Triangle.cpp │ │ └── Oh Those Palindromes.cpp │ ├── Technocup 2019 Elimination Round 1/ │ │ ├── Explanation/ │ │ │ ├── In Search of An Easy Problem Explanation.txt │ │ │ ├── Vasya and Cornfield.txt │ │ │ ├── Vasya and Golden Ticket Explanation.txt │ │ │ ├── Vasya and Good Sequences Explanation.txt │ │ │ └── Vasya and Triangle Explanation.txt │ │ └── Programs/ │ │ ├── In Search of An Easy Problem.cpp │ │ ├── Vasya and Cornfield.cpp │ │ ├── Vasya and Golden Ticket.cpp │ │ ├── Vasya and Good Sequences.cpp │ │ └── Vasya and Triangle.cpp │ └── Technocup 2019 Elimination Round 2/ │ ├── Explanation/ │ │ ├── Curiosity Has No Limits.txt │ │ └── Golden Plate.txt │ └── Programs/ │ ├── Curiosity Has No Limits.cpp │ └── Golden Plate.cpp ├── Explanations/ │ ├── Explanations - 1/ │ │ ├── Again Twenty Five - Explanation.txt │ │ ├── Bear and Big Brother - Explanation.txt │ │ ├── Beautiful Matrix - Explanation.txt │ │ ├── Boy or Girl - Explanation.txt │ │ ├── Complicated GCD - Explanation.txt │ │ ├── Compote - Explanation.txt │ │ ├── Dasha and Stairs - Explanation.txt │ │ ├── Elephant - Explanation.txt │ │ ├── Even Odds - Explanation.txt │ │ ├── Fancy Fence - Explanation.txt │ │ ├── Holiday of Equality - Explanation.txt │ │ ├── I Love Username - Explanation.txt │ │ ├── Ilya Bank Account - Explanation.txt │ │ ├── Little Elephant and Rozdil - Explanation.txt │ │ ├── Lucky Division - Explanation.txt │ │ ├── Nearly Lucky Number - Explanation.txt │ │ ├── Opponents - Explanation.txt │ │ ├── Petr and a Calendar - Explanation.txt │ │ ├── Shell Game - Explanation.txt │ │ ├── Sherlock's New Girlfriend - Explanation.txt │ │ ├── Taymr is Calling You - Explanation.txt │ │ ├── The Wall - Explanation.txt │ │ ├── Translation - Explanation.txt │ │ ├── Vitya in the Countryside - Explanation.txt │ │ └── Vladik and Flights - Explanation.txt │ ├── Explanations - 10/ │ │ ├── A and B Compilation Errors Explanation.txt │ │ ├── Amr and Music Explanation.txt │ │ ├── Arrival of General Explanation.txt │ │ ├── Bear and Game Explanation.txt │ │ ├── Beautiful Year Explanation.txt │ │ ├── Black Square Explanation.txt │ │ ├── Counterexample Explanation.txt │ │ ├── Difference Row.txt │ │ ├── Eugene and Array Explanation.txt │ │ ├── Interesting Drink Explanation.txt │ │ ├── Keyboard Layouts Explanation.txt │ │ ├── Life Without Zeroes Explanation.txt │ │ ├── Modified GCD Explanation.txt │ │ ├── Multi Judge Solving Explanation.txt │ │ ├── Next Test Explanation.txt │ │ ├── Presents Explanation.txt │ │ ├── Serega and Coat Rack Explanation.txt │ │ ├── Serega and Suffixes Explanation.txt │ │ ├── Slightly Decreasing Permutation Explanation.txt │ │ ├── Swap Sort Explanation.txt │ │ ├── Taxi Explanation.txt │ │ ├── Toy Cars Explanation.txt │ │ ├── Unimodal Arrays Explanation.txt │ │ ├── Valera and Plates Explanation.txt │ │ └── Vanya and Cubes Explanation.txt │ ├── Explanations - 11/ │ │ ├── BerSU Ball Explanation.txt │ │ ├── Elections Explanation.txt │ │ ├── Five in a Row Explanation.txt │ │ ├── Football Explanation.txt │ │ ├── Fortune Telling Explanation.txt │ │ ├── Free Cash Alternate Solution Explanation.txt │ │ ├── Free Cash Explanation.txt │ │ ├── Games.txt │ │ ├── Good Number Explanation.txt │ │ ├── Johnny Likes Numbers Explanation.txt │ │ ├── Lever Explanation.txt │ │ ├── Lunch Rush Explanation.txt │ │ ├── Magic Spheres Explanation.txt │ │ ├── New Year and Hurry Explanation.txt │ │ ├── Nicholas and Permutation Explanation.txt │ │ ├── Petya and Staircases Explanation.txt │ │ ├── Playing with Dice Explanation.txt │ │ ├── Saitama Destroys Hotel Explanation.txt │ │ ├── Sasha and Sticks Explanation.txt │ │ ├── Soft Drinking Explanation.txt │ │ ├── The Child and The Homework Explanation.txt │ │ ├── The New Year Meeting Friends Alternate Solution.txt │ │ ├── The New Year Meeting Friends Explanation.txt │ │ ├── Word Explanation.txt │ │ └── inc ARG Explanation.txt │ ├── Explanations - 2/ │ │ ├── A and B Chess - Explanation.txt │ │ ├── Anton and Danik - Explanation.txt │ │ ├── Bachgold Problem - Explanation.txt │ │ ├── Bit++ - Explanation.txt │ │ ├── Buy a Shovel - Explanation.txt │ │ ├── Chat Room - Explanation.txt │ │ ├── Chips - Explanation.txt │ │ ├── Cinema Line - Explanation.txt │ │ ├── Domino Piling - Explanation.txt │ │ ├── Drazil and Date - Explanation.txt │ │ ├── George and Accomodation - Explanation.txt │ │ ├── Gravity Flip - Explanation.txt │ │ ├── Infinite Sequence - Explanation.txt │ │ ├── Interview with Oleg - Explanation.txt │ │ ├── Memory and Crow - Explanation.txt │ │ ├── Pasha and Stick - Explanation.txt │ │ ├── Pineapple Incident - Explanation.txt │ │ ├── Serial Killer - Explanation.txt │ │ ├── Soldier and Bananas - Explanation.txt │ │ ├── Spider Man - Explanation.txt │ │ ├── Stones on a Table - Explanation.txt │ │ ├── Transform A to B - Explanation.txt │ │ ├── Triangular Numbers - Explanation.txt │ │ ├── Watermelon - Explanation.txt │ │ └── Word Capitalisation - Explanation.txt │ ├── Explanations - 3/ │ │ ├── Anton and Polyhedron - Explanation.txt │ │ ├── Calculating Function - Explanation.txt │ │ ├── Cheap Travel - Explanation.txt │ │ ├── Checking the Calendar - Expanation.txt │ │ ├── Currency System in Geraldion - Explanation.txt │ │ ├── Die Roll - Explanation.txt │ │ ├── Domino Effect - Explanation.txt │ │ ├── Expression - Explanation.txt │ │ ├── Fedya and Maths - Explanation.txt │ │ ├── Filya and Homework - Explanation.txt │ │ ├── Game - Explanation.txt │ │ ├── Initial Bet - Explanation.txt │ │ ├── LCM Challenge - Explanation.txt │ │ ├── Maximum Increase - Explanation.txt │ │ ├── Mishka and Game - Explanation.txt │ │ ├── Multiplication Table - Explanation.txt │ │ ├── Next Round - Explanation.txt │ │ ├── Party - Explanation.txt │ │ ├── Police Recruits - Explanation.txt │ │ ├── Raising Bacteria - Explanation.txt │ │ ├── Save Luke - Explanation.txt │ │ ├── Taxes - Explanation.txt │ │ ├── Tennis Tournament - Explanation.txt │ │ ├── The Number of Positions - Explanation.txt │ │ └── Theatre Square - Explanation.txt │ ├── Explanations - 4/ │ │ ├── Aloyna Numbers - Explanation.txt │ │ ├── Arpa's Hard Problem and Mehrad's Naive Cheat - Explanation.txt │ │ ├── Benches - Explanation.txt │ │ ├── Challenge Pendants - Explanation.txt │ │ ├── Chewbecca and Number - Explanation.txt │ │ ├── Chocolate - Explanation.txt │ │ ├── Design Tutorial - Learn From Math - Explanation.txt │ │ ├── Divisibility - Explanation.txt │ │ ├── Fedor and New Game - Explanation.txt │ │ ├── Game-Test - Explanation.txt │ │ ├── Hexagons - Explanation.txt │ │ ├── Hulk - Explanation.txt │ │ ├── Indivisibility - Explanation.txt │ │ ├── Interview - Explanation.txt │ │ ├── King Moves - Explanation.txt │ │ ├── Lineland Mail - Explanation.txt │ │ ├── Lucky Numbers - Explanation.txt │ │ ├── Poland Ball and Hypothesis - Explanation.txt │ │ ├── Professor Gukiz's Robot - Explanation.txt │ │ ├── Random Teams- Explanation.txt │ │ ├── Reconnaissance 2 - Explanation.txt │ │ ├── Selection of Personnel - Explanation.txt │ │ ├── Tetrahedron - Explanation.txt │ │ ├── Vasya and Petya's Game - Explanation.txt │ │ └── Way Too Long Words - Explanation.txt │ ├── Explanations - 5/ │ │ ├── Bear and Poker - Explanation.txt │ │ ├── Boredom - Explanation.txt │ │ ├── Cut Ribbon - Explanation.txt │ │ ├── Display Size - Explanation.txt │ │ ├── Duff in Love - Explanation.txt │ │ ├── Flipping Game - Explanation.txt │ │ ├── Flowers - Explanation.txt │ │ ├── Fox and Dividing Cheese - Explanation.txt │ │ ├── Hungry Sequence - Explanation.txt │ │ ├── K Interesting Pair of Integers - Explanation.txt │ │ ├── Kefa and First Step - Explanation.txt │ │ ├── Making a String - Explanation.txt │ │ ├── Non Square Equation - Explanation.txt │ │ ├── Odd Sum - Explanation.txt │ │ ├── Parking Lot - Explanation.txt │ │ ├── Perfect Permutation - Explanation.txt │ │ ├── Preparing for Olympiad - Explanation.txt │ │ ├── Star - Explanation.txt │ │ ├── Table Tennis Game 2 - Explanation.txt │ │ ├── Tavas and Saddas - Explanation.txt │ │ ├── Team - Explanation.txt │ │ ├── Tetrahedron - Efficiently Explanation.txt │ │ ├── Tricky Sum - Explanation.txt │ │ ├── Vacations - Explanation.txt │ │ └── Vanya and Table.txt │ ├── Explanations - 6/ │ │ ├── A Shell Game - Explanation.txt │ │ ├── Accounting - Explanation.txt │ │ ├── Anton and Digits - Explanation.txt │ │ ├── Black Square - Explanation.txt │ │ ├── Dinner with Emma - Explanation.txt │ │ ├── Ebony and Ivory - Explanation.txt │ │ ├── Find Amir - Explanation.txt │ │ ├── Game with Sticks - Explanation.txt │ │ ├── Increasing Sequence - Explanation.txt │ │ ├── Insomnia Cure - Explanation.txt │ │ ├── Jumping Ball - Explanation.txt │ │ ├── K Tree - Explanation.txt │ │ ├── Lovely Palindromes - Explanation.txt │ │ ├── Luxurious Buildings - Explanation.txt │ │ ├── Meeting of Old Friends - Explanation.txt │ │ ├── Oleg and Shares - Explanation.txt │ │ ├── Patrick and Shopping - Explanation.txt │ │ ├── Plate Game - Explanation.txt │ │ ├── Rewards - Explanation.txt │ │ ├── Round House - Explanation.txt │ │ ├── System of Equations - Explanation.txt │ │ ├── Vanya and Fence - Explanation.txt │ │ ├── Vanya and Lanterns - Explanation.txt │ │ ├── Vasya and Hipster - Explanation.txt │ │ └── Wizard's Duel - Explanation.txt │ ├── Explanations - 7/ │ │ ├── 3 - Palindrome - Explanation.txt │ │ ├── Alena's Schedule - Explanation.txt │ │ ├── Alice and Bob - Explanation.txt │ │ ├── An Abandoned Sentiment From The Past - Explanation.txt │ │ ├── Andrushya and Socks - Explanation.txt │ │ ├── Combination Lock Explanation.txt │ │ ├── Devu, the Singer and Churu, the Joker - Explanation.txt │ │ ├── Fake NP - Explanation.txt │ │ ├── Fence - Explanation.txt │ │ ├── Find Marble - Explanation.txt │ │ ├── Free Ice Cream Explanation.txt │ │ ├── Hexadecimal's Theorem Alternate Solution Explanation.txt │ │ ├── Hexadecimal's Theorem Explanation.txt │ │ ├── IQ Test - Explanation.txt │ │ ├── Magnets - Explanation.txt │ │ ├── Mahmod and Longest Uncommon Subsequence - Explanation.txt │ │ ├── Monster and Squirrel - Explanation.txt │ │ ├── New Year Transportation Explanation.txt │ │ ├── Optimal Point on a Line - Explanation.txt │ │ ├── Pashmak and Flowers - Explanation.txt │ │ ├── Potions Homework - Explanation.txt │ │ ├── Pythagorean Triples Explanation.txt │ │ ├── Red and Blue Balls - Explanation.txt │ │ ├── The Contest - Explanation.txt │ │ └── Young Physicist - Explanation.txt │ ├── Explanations - 8/ │ │ ├── A and B Team Training Explanation.txt │ │ ├── Almost Primes Explanation.txt │ │ ├── Brian's Photos.txt │ │ ├── Caisa and Pylons Explanation.txt │ │ ├── Ceil and Flowers Explanation.txt │ │ ├── Choosing Teams Explanation.txt │ │ ├── Diverse Permutation Explanation.txt │ │ ├── Golden Age Explanation.txt │ │ ├── HQ9+ Explanation.txt │ │ ├── Hexadecimal's Numbers Explanation.txt │ │ ├── Jzzhu and Sequences Explanation.txt │ │ ├── K Factorisation Explanation.txt │ │ ├── Noldbach Problem Explanation.txt │ │ ├── Oleysa and Rodion Explanation.txt │ │ ├── Petr and Book Explanation.txt │ │ ├── Petya and Strings Explanation.txt │ │ ├── Sum of Digits Explanation.txt │ │ ├── T Primes Alternate Solution Explanation.txt │ │ ├── T Primes Explanation.txt │ │ ├── Two Bags of Potatos - Explanation.txt │ │ ├── Vanya and Cards Explanation.txt │ │ ├── Vitaly and Night Explanation.txt │ │ ├── Wet Shark and Odd and Even Explanation.txt │ │ └── Yarslav and Permutations Explanation.txt │ ├── Explanations - 9/ │ │ ├── Alyona and Copybooks Explanation.txt │ │ ├── Appleman and Toastman Explanation.txt │ │ ├── Array Explanation.txt │ │ ├── Bear and Five Cards Explanation.txt │ │ ├── Bus to Udayland Explanation.txt │ │ ├── Case of the Zeroes and Ones Explanation.txt │ │ ├── Circle Line Explanation.txt │ │ ├── Crazy Computer Explanation.txt │ │ ├── Crossword Solving Explanation.txt │ │ ├── Divisibility Explanation.txt │ │ ├── Fox and Number Game Explanation.txt │ │ ├── Haiku Explanation.txt │ │ ├── I'm Bored with Life Explanation.txt │ │ ├── Is your Horseshow on the Other Hoof Explanation.txt │ │ ├── K-th Divisor Explanation.txt │ │ ├── Kitahara Haruki's Gift Explanation.txt │ │ ├── Little Elephant and Function Explanation.txt │ │ ├── Little Elephant and Problem Explanation.txt │ │ ├── New Year and Days Explanation.txt │ │ ├── One Dimensional Japanese Crossword Explanation.txt │ │ ├── Present from Lena Explanation.txt │ │ ├── Prime Matrix.txt │ │ ├── String Task Explanation.txt │ │ ├── Subtractions Explanation.txt │ │ └── Toy Army Explanation.txt │ ├── Explanations 12/ │ │ ├── Anastasia and Pebbles Explanation.txt │ │ ├── Bear and Three Balls Explanation.txt │ │ ├── Buggy Sorting Explanation.txt │ │ ├── Co Prime Array Explanation.txt │ │ ├── Dima and Friends Explanation.txt │ │ ├── Dima and Sequence Explanation.txt │ │ ├── Dreamoon and Stairs Alternate Solution Explanation.txt │ │ ├── Dreamoon and Stairs Explanation.txt │ │ ├── Fashion in Berland Explanation.txt │ │ ├── Inbox (100500) Explanation.txt │ │ ├── Key Races Explanation.txt │ │ ├── Ksusha and Arrays Explanation.txt │ │ ├── Lecture Explanation.txt │ │ ├── Little Elephant and Chess Explanation.txt │ │ ├── Little Girl and Maximum Sum.txt │ │ ├── Minimum Difficulty Explanation.txt │ │ ├── Pahsa and Pixels Explanation.txt │ │ ├── Puzzles Explanation.txt │ │ ├── Santa Claus and Candies Explanation.txt │ │ ├── Sergey and Dima Explanation.txt │ │ ├── Shaas and Oskols Explanation.txt │ │ ├── Sleuth Explanation.txt │ │ ├── The Festive Evening Explanation.txt │ │ ├── The Number on the Board Explanation.txt │ │ └── Watching a Movie Explanation.txt │ ├── Explanations 13/ │ │ ├── A Good Contest Explanation.txt │ │ ├── Arpa's Obvious Problem and Mehrad's Terrible Solution Explanation.txt │ │ ├── Arrays Explanation.txt │ │ ├── Arya and Bran Explanation.txt │ │ ├── Bear and Elections Explanation.txt │ │ ├── Business Trip.txt │ │ ├── Cards Explanation.txt │ │ ├── Code Obfuscation Explanation.txt │ │ ├── Drinks Explanation.txt │ │ ├── Epic Game Explanation.txt │ │ ├── Functions Again Explanation.txt │ │ ├── Generous Kefa Explanation.txt │ │ ├── George and Job Explanation.txt │ │ ├── Godsend Explanation.txt │ │ ├── Ilya and Queries Explanation.txt │ │ ├── Kuriyama Mirai's Stones Explanation.txt │ │ ├── Lights Out Explanation.txt │ │ ├── Little Dima and Equation Explanation.txt │ │ ├── Little Elephant and Bits Explanation.txt │ │ ├── New Skateboard Explanation.txt │ │ ├── Oath of the Night's Watch Explanation.txt │ │ ├── Sort the Array Explanation.txt │ │ ├── Star Sky Explanation.txt │ │ ├── Vanya and Books Explanation.txt │ │ └── Vasya and Digital Root Explanation.txt │ ├── Explanations 14/ │ │ ├── Asphalting Roads Explanation.txt │ │ ├── Bicycle Chain Explanation.txt │ │ ├── Borze Explanation.txt │ │ ├── Building Permutation Explanation.txt │ │ ├── Chess Tourney Explanation.txt │ │ ├── Cormen - The Best Friend of Man Explanation.txt │ │ ├── DZY Loves Sequences Explanation.txt │ │ ├── Dragons Explanation.txt │ │ ├── Drazil and Factorial Explanation.txt │ │ ├── Football Explanation.txt │ │ ├── Helpful Maths Explanation.txt │ │ ├── Increase and Decrease Explanation.txt │ │ ├── Jeff and Digits Explanation.txt │ │ ├── Jzzhu and Children Explanation.txt │ │ ├── Modulo Sum Explanation.txt │ │ ├── Odds and Ends Explanation.txt │ │ ├── Panoramix's Prediction Explanation.txt │ │ ├── Permutation Explanation.txt │ │ ├── Powers of Two.txt │ │ ├── Queue at the School Explanation.txt │ │ ├── Rectangles Explanation.txt │ │ ├── Supercentral Point Explanation.txt │ │ ├── Tram Explanation.txt │ │ ├── Ultra Fast Mathematician.txt │ │ └── Vasya and String Explanation.txt │ ├── Explanations 15/ │ │ ├── Army Explanation.txt │ │ ├── Between the Offices Explanation.txt │ │ ├── Cableway Explanation.txt │ │ ├── Ciferia Explanation.txt │ │ ├── Coins Explanation.txt │ │ ├── Divisibility by Eight Explanation.txt │ │ ├── Exams Explanation.txt │ │ ├── Given Length and Sum of Digits.txt │ │ ├── Ilya and Sticks Explanation.txt │ │ ├── Inna and Huge Candy Matrix Explanation.txt │ │ ├── K-Multiple Free Set Explanation.txt │ │ ├── Kefa and Park Explanation.txt │ │ ├── Mahmoud and Ehab and the MEX Explanation.txt │ │ ├── Mahmoud and Ehab and the bipartiteness Explanation.txt │ │ ├── Mahmoud and Ehab and the xor Explanation.txt │ │ ├── Number of Ways Explanation.txt │ │ ├── Pearls in a Row Explanation.txt │ │ ├── Pie Rules Explanation.txt │ │ ├── Quasi-palindrome Explanation.txt │ │ ├── Soldier and Number Game Explanation.txt │ │ ├── Tanya and Toys Explanation.txt │ │ ├── Team Explanation.txt │ │ ├── The Eternal Immortality Explanation.txt │ │ ├── Triangle Explanation.txt │ │ └── USB Flash Drives Explanation.txt │ ├── Explanations 16/ │ │ ├── Amusing Joke Explanation.txt │ │ ├── Anton and Letters Explanation.txt │ │ ├── Cards with Numbers Explanation.txt │ │ ├── Classroom Watch Explanation.txt │ │ ├── Cupboards Explanation.txt │ │ ├── Dishonest Sellers Explanation.txt │ │ ├── Dubstep Explanation.txt │ │ ├── Easy Number Challenge Explanation.txt │ │ ├── Fox and Snake Explanation.txt │ │ ├── Greg and Array Explanation.txt │ │ ├── Hacking Cypher Explanation.txt │ │ ├── I Wanna Be The Guy Explanation.txt │ │ ├── IQ Test Explanation.txt │ │ ├── Jeff and Periods Explanation.txt │ │ ├── Pashmak and Garden Explanation.txt │ │ ├── Primes or Palindromes Explanation.txt │ │ ├── Quasi Binary Explanation.txt │ │ ├── Sereja and Bottles Explanation.txt │ │ ├── Team Olympiad Explanation.txt │ │ ├── The Fibonacci Segment Explanation.txt │ │ ├── Twins Explanation.txt │ │ ├── Valera and Tubes Explanation.txt │ │ ├── Xenia and Bit Operations.txt │ │ ├── Xenia and Ringroad Explanation.txt │ │ └── k-String Explanation.txt │ ├── Explanations 17/ │ │ ├── Adding Digits Explanation.txt │ │ ├── Christmas Spruce Explanation.txt │ │ ├── Dreamoon and Wi-Fi Explanation.txt │ │ ├── Exams Explanation.txt │ │ ├── Garden Explanation.txt │ │ ├── Jamie and Alarm Snooze Explanation.txt │ │ ├── Jamie and Interesting Graph Explanation.txt │ │ ├── Kolya and Tanya Explanation.txt │ │ ├── Mashmokh and ACM Explanation.txt │ │ ├── Maxmium Splitting Explanation.txt │ │ ├── Minimum Sum Explanation.txt │ │ ├── Modular Exponentiation Explanation.txt │ │ ├── New Year and Domino Explanation.txt │ │ ├── New Year's Eve Explanation.txt │ │ ├── Palindrome Pairs Explanation.txt │ │ ├── Perfect Number Explanation.txt │ │ ├── QAQ Explanation.txt │ │ ├── Seat Arrangements Explanation.txt │ │ ├── Supermarket Explanation.txt │ │ ├── Swap Adjacent Elements Explanation.txt │ │ ├── Tea Queue Explanation.txt │ │ ├── Testing Pants for Sadness Explanation.txt │ │ ├── The World is a Theatre Explanation.txt │ │ ├── Tricky Alchemy Explanation.txt │ │ └── Water the Gardens Explanation.txt │ ├── Explanations 18/ │ │ ├── Art Union Explanation.txt │ │ ├── Bear and Colours Explanation.txt │ │ ├── Cave Painting Explanation.txt │ │ ├── Cloning Toys Explanation.txt │ │ ├── Eternal Victory Explanation.txt │ │ ├── Hard Problem Explanation.txt │ │ ├── Joystick Explanation.txt │ │ ├── K-Special Tables Explanation.txt │ │ ├── Lucky Sum Explanation.txt │ │ ├── Magic Forest Explanation.txt │ │ ├── Marvolo Gaunt's Ring Alternate Solution Explanation.txt │ │ ├── Marvolo Gaunt's Ring Explanation.txt │ │ ├── Not Equal on a Segment Explanation.txt │ │ ├── Perfect Squares Explanation.txt │ │ ├── Petya and Inequiations Explanation.txt │ │ ├── Polo the Penguin and Matrix Explanation.txt │ │ ├── Polo the Penguin and Strings Explanation.txt │ │ ├── Replacement Explanation.txt │ │ ├── Robot Vaccuum Cleaner Explanation.txt │ │ ├── Rumour Explanation.txt │ │ ├── Search for Pretty Integers Explanation.txt │ │ ├── Tom Riddle's Diary Explanation.txt │ │ ├── Two Substrings Explanation.txt │ │ ├── Vladik and Fractions Explanation.txt │ │ └── Woodcutter.txt │ ├── Explanations 19/ │ │ ├── A Compatipble Pair Explanation.txt │ │ ├── A Prosperous Lot Explanation.txt │ │ ├── Almost Identity Permutations Explanation.txt │ │ ├── Amr and Large Array Explanation.txt │ │ ├── Beautiful Sets of Points Explanation.txt │ │ ├── Buggy Robot Explanation.txt │ │ ├── Cellular Network Explanation.txt │ │ ├── Coder Explanation.txt │ │ ├── Diversity Explanation.txt │ │ ├── Hamster Farm Explanation.txt │ │ ├── K-Dominant Character Explanation.txt │ │ ├── Little Artem and Grasshopper Explanation.txt │ │ ├── Longest K Good Segment Explanation.txt │ │ ├── Love Triangle Explanation.txt │ │ ├── Nuts Explanation.txt │ │ ├── Palindrome Transformation Explanation.txt │ │ ├── Palindromic Supersequence Explanation.txt │ │ ├── Recursive Queries Explanation.txt │ │ ├── Run For Your Prize Explanation.txt │ │ ├── Simple Strings Explanation.txt │ │ ├── The Useless Toy Explanation.txt │ │ ├── Vasya and Socks Explanation.txt │ │ ├── Watchmen Explanation.txt │ │ └── Word Correction Explanation.txt │ ├── Explanations 20/ │ │ ├── Alena and the Heater Explanation.txt │ │ ├── Fafa and Ancient Alphabet Explanation.txt │ │ ├── Fafa and His Company Explanation.txt │ │ ├── Fafa and the Gates Explanation.txt │ │ ├── Fixing Typos Explanation.txt │ │ ├── Gargari and Bishops Explanation.txt │ │ ├── Gargari and Permutations Alternate Solution Explanation.txt │ │ ├── Gargari and Permutations Explanation.txt │ │ ├── Hard Process Explanation.txt │ │ ├── Lisa and Dima Explanation.txt │ │ ├── Love Rescue Explanation.txt │ │ ├── Mashmok and Numbers Explanation.txt │ │ ├── Non-Secret Cypher Explanation.txt │ │ ├── Olympiad Explanation.txt │ │ ├── Partition Explanation.txt │ │ ├── Petya and His Friends Alternate Solution Explanation.txt │ │ ├── Petya and His Friends Explanation.txt │ │ ├── Phone Numbers Explanation.txt │ │ ├── Pocket Book Explanation.txt │ │ ├── Points on the Line Explanation.txt │ │ ├── Protect Sheep Explanation.txt │ │ ├── String Transformation Explanation.txt │ │ ├── Sum and Replace Explanation.txt │ │ ├── Vile Grasshoppers Explanation.txt │ │ └── Weird Subtraction Process Explanation.txt │ ├── Explanations 21/ │ │ ├── Aramic Script Bitmask Solution.txt │ │ ├── Aramic Script Explanation.txt │ │ ├── Arithmetic Progression Explanation.txt │ │ ├── Bash and a Tough Math Puzzle Explanation.txt │ │ ├── Consecutive Subsequences Explanation.txt │ │ ├── Cyclic Components Explanation.txt │ │ ├── Divide by Three Multiply by Two Alternate Solution Explanation.txt │ │ ├── Divide by Three, Multiply by Two Explanation.txt │ │ ├── Dreamoon and Sets Explanation.txt │ │ ├── File Name Explanation.txt │ │ ├── Fox and Box Accumulation Explanation.txt │ │ ├── Ghosts Explanation.txt │ │ ├── Less or Equal Explanation.txt │ │ ├── Little Girl and Maximum XOR Explanation.txt │ │ ├── Lucky Sum of Digits Explanation.txt │ │ ├── Mahmoud and Ehab and Another Array Construction Test Explanation.txt │ │ ├── Mahmoud and Ehab and Even Odd Game Explanation.txt │ │ ├── Mahmoud and a Triangle Explanation.txt │ │ ├── Make a Square Alternate Solution Explanation.txt │ │ ├── Make a Square Explanation.txt │ │ ├── Mancala Explanation.txt │ │ ├── Pairs of Lines Explanation.txt │ │ ├── Two Gram Explanation.txt │ │ ├── Valhalla Siege Explanation.txt │ │ └── Wrong Subtraction Explanation.txt │ ├── Explanations 22/ │ │ ├── AND Graph Explanation.txt │ │ ├── Almost Arithmetic Progression Explanation.txt │ │ ├── Antipalindrome Alternate Solution Explanation.txt │ │ ├── Antipalindrome Explanation.txt │ │ ├── Ball Explanation.txt │ │ ├── Bits Explanation.txt │ │ ├── Bookshelves Explanation.txt │ │ ├── Businessman Problems Explanation.txt │ │ ├── Chess Placing Explanation.txt │ │ ├── Correct Solution Explanation.txt │ │ ├── Couting Kangaroos is Fun Explanation.txt │ │ ├── Fruits Explanation.txt │ │ ├── High Schooll Become Human Explanation.txt │ │ ├── Infinity Gauntlet Explanation.txt │ │ ├── Knights of a Polygonal Table Explanation.txt │ │ ├── Letters Explanation.txt │ │ ├── Local Extrema Explanation.txt │ │ ├── Remove Duplicates Explanation.txt │ │ ├── Super Agent Explanation.txt │ │ ├── Switches and Lamps Explanation.txt │ │ ├── Three Displays Explanation.txt │ │ ├── Three Displays Segment Tree Solution Explanation.txt │ │ ├── Tufurama Explanation.txt │ │ └── Useful Decomposition Explanation.txt │ ├── Explanations 23/ │ │ ├── An Impassioned Circulation of Affection Explanation.txt │ │ ├── Another Problem on Strings Explanation.txt │ │ ├── Babaei and Birthday Cake Explanation.txt │ │ ├── Bear and Prime Numbers Explanation.txt │ │ ├── Cirriculum Vitae Explanation.txt │ │ ├── Classy Numbers Explanation.txt │ │ ├── Counting Arrays Explanation.txt │ │ ├── Crazy Town Explanation.txt │ │ ├── Find Maximum Explanation.txt │ │ ├── Fish Explanation.txt │ │ ├── Garbage Disposal Explanation.txt │ │ ├── Guest from the Past Explanation.txt │ │ ├── Ice Skater Explanation.txt │ │ ├── Lazyland Explanation.txt │ │ ├── Lesha and Array Splitting Explanation.txt │ │ ├── Lost Array Explanation.txt │ │ ├── Maze Explanation.txt │ │ ├── Minesweeper Explanation.txt │ │ ├── Minimum Diameter Tree Explanation.txt │ │ ├── No To Palindromes Explanation.txt │ │ ├── On Number of Decompositions into Multipliers Explanation.txt │ │ ├── Summarise to Powers of Two Explanation.txt │ │ ├── The Fair Nut and String Explanation.txt │ │ └── The Meaningless Game Explanation.txt │ └── Explanations 24/ │ ├── Brutality Explanation.txt │ ├── Connect Explanation.txt │ ├── Div Times Mod Explanation.txt │ ├── Diverse Garland Explanation.txt │ ├── Division and Union Explanation.txt │ ├── Finite or Not Explanation.txt │ ├── Ilya and Escalator Explanation.txt │ ├── Increasing by Modulo Explanation.txt │ ├── Nice Garland Explanation.txt │ ├── Planning the Expedition Explanation.txt │ ├── Playing Piano Explanation.txt │ ├── Posterized Explanation.txt │ ├── Powers of Two Explanation.txt │ ├── Splitting into Digits Explanation.txt │ ├── Stages Explanation.txt │ ├── Tanya and Candies Explanation.txt │ ├── The Way to Home Explanation.txt │ ├── Vanya and Label Explanation.txt │ ├── Where Do I Turn Explanation.txt │ └── Zero Quantity Maximisation Explanation.txt └── README.md