[
  {
    "path": "README.md",
    "content": "# LeetGrokk\n\n## Checkbox Instructions\n\nTo use the checkboxes you must fork the repository and add an X instead of a space between the brackets\n- [X] Checked\n- [ ] Unchecked\n\n## Premium questions\n\nYou can access premium question on lintcode.com\n\n## Patterns\nhttps://hackernoon.com/14-patterns-to-ace-any-coding-interview-question-c5bb3357f6ed\n\n## Pattern: Sliding Window\n\n- [ ] https://leetcode.com/problems/maximum-subarray/  (Blind)\n- [ ] https://leetcode.com/problems/minimum-size-subarray-sum/\n- [ ] https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters/\n- [ ] https://leetcode.com/problems/fruit-into-baskets/\n- [ ] https://leetcode.com/problems/longest-substring-without-repeating-characters/ (Blind)\n- [ ] https://leetcode.com/problems/longest-repeating-character-replacement/ (Blind)\n- [ ] https://leetcode.com/problems/max-consecutive-ones-iii/\n- [ ] https://leetcode.com/problems/permutation-in-string/\n- [ ] https://leetcode.com/problems/find-all-anagrams-in-a-string/\n- [ ] https://leetcode.com/problems/minimum-window-substring/ (Blind)\n- [ ] https://leetcode.com/problems/substring-with-concatenation-of-all-words/\n\n## Pattern: Islands(Matrix Traversal)\n- [ ] https://leetcode.com/problems/number-of-islands/ (Blind)\n- [ ] https://leetcode.com/problems/max-area-of-island/\n- [ ] https://leetcode.com/problems/flood-fill/\n- [ ] https://leetcode.com/problems/number-of-closed-islands/\n- [ ] https://leetcode.com/problems/island-perimeter/\n- [ ] https://leetcode.com/problems/number-of-distinct-islands/\n- [ ] https://leetcode.com/problems/detect-cycles-in-2d-grid/\n## Pattern: Two Pointers\n- [ ] https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/\n- [ ] https://leetcode.com/problems/remove-duplicates-from-sorted-array/\n- [ ] https://leetcode.com/problems/squares-of-a-sorted-array/\n- [ ] https://leetcode.com/problems/3sum/ (Blind)\n- [ ] https://leetcode.com/problems/3sum-closest/\n- [ ] https://leetcode.com/problems/3sum-smaller/\n- [ ] https://leetcode.com/problems/subarray-product-less-than-k/\n- [ ] https://leetcode.com/problems/sort-colors/\n- [ ] https://leetcode.com/problems/4sum/\n- [ ] https://leetcode.com/problems/backspace-string-compare/\n- [ ] https://leetcode.com/problems/shortest-unsorted-continuous-subarray/\n\n## Pattern: Fast & Slow pointers\n- [ ] https://leetcode.com/problems/linked-list-cycle/ (Blind)\n- [ ] https://leetcode.com/problems/linked-list-cycle-ii/\n- [ ] https://leetcode.com/problems/happy-number/\n- [ ] https://leetcode.com/problems/middle-of-the-linked-list/\n- [ ] https://leetcode.com/problems/palindrome-linked-list/\n- [ ] https://leetcode.com/problems/reorder-list/ (Blind)\n- [ ] https://leetcode.com/problems/circular-array-loop/\n\n## Pattern: Merge Intervals\n- [ ] https://leetcode.com/problems/merge-intervals/ (Blind)\n- [ ] https://leetcode.com/problems/insert-interval/ (Blind)\n- [ ] https://leetcode.com/problems/interval-list-intersections/\n- [ ] https://leetcode.com/problems/meeting-rooms/ (Blind and Premium)\n- [ ] https://leetcode.com/problems/meeting-rooms-ii/ (Blind and Premium)\n- [ ] https://leetcode.com/problems/maximum-profit-in-job-scheduling/\n- [ ] https://leetcode.com/problems/employee-free-time/\n\n## Pattern: Cyclic Sort\n\n- Couldn't find Cyclic Sort\n- [ ] https://leetcode.com/problems/missing-number/ (Blind)\n- [ ] https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array/\n- [ ] https://leetcode.com/problems/find-the-duplicate-number/\n- [ ] https://leetcode.com/problems/find-all-duplicates-in-an-array/\n- [ ] https://leetcode.com/problems/set-mismatch/\n- [ ] https://leetcode.com/problems/first-missing-positive/\n- [ ] https://leetcode.com/problems/kth-missing-positive-number/\n\n## Pattern: In-place Reversal of a LinkedList\n- [ ] https://leetcode.com/problems/reverse-linked-list/ (Blind)\n- [ ] https://leetcode.com/problems/reverse-linked-list-ii/\n- [ ] https://leetcode.com/problems/reverse-nodes-in-k-group/\n- Alternation to previous question\n- [ ] https://leetcode.com/problems/rotate-list/\n\n## Pattern: Tree Breadth First Search\n- [ ] https://leetcode.com/problems/binary-tree-level-order-traversal/ (Blind)\n- [ ] https://leetcode.com/problems/binary-tree-level-order-traversal-ii/\n- [ ] https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal/\n- [ ] https://leetcode.com/problems/average-of-levels-in-binary-tree/\n- [ ] https://leetcode.com/problems/minimum-depth-of-binary-tree/\n- [ ] https://leetcode.com/problems/maximum-depth-of-binary-tree/ (Not grokk but Blind)\n- [ ] https://leetcode.com/problems/inorder-successor-in-bst/  (In order instead of level order)\n- [ ] https://leetcode.com/problems/populating-next-right-pointers-in-each-node/  \n- Alternation to previous question\n- [ ] https://leetcode.com/problems/binary-tree-right-side-view/\n\n## Pattern: Tree Depth First Search\n- [ ] https://leetcode.com/problems/path-sum/\n- [ ] https://leetcode.com/problems/path-sum-ii/\n- [ ] https://leetcode.com/problems/sum-root-to-leaf-numbers/\n- [ ] https://leetcode.com/problems/check-if-a-string-is-a-valid-sequence-from-root-to-leaves-path-in-a-binary-tree/description/\n- [ ] https://leetcode.com/problems/path-sum-iii/\n- [ ] https://leetcode.com/problems/diameter-of-binary-tree/\n- [ ] https://leetcode.com/problems/binary-tree-maximum-path-sum/ (Blind)\n\n## Pattern: Two Heaps\n- [ ] https://leetcode.com/problems/find-median-from-data-stream/ (Blind)\n- [ ] https://leetcode.com/problems/sliding-window-median/\n- [ ] https://leetcode.com/problems/ipo/\n- [ ] https://leetcode.com/problems/find-right-interval/\n\n## Pattern: Subsets\n- [ ] https://leetcode.com/problems/subsets/\n- [ ] https://leetcode.com/problems/subsets-ii/\n- [ ] https://leetcode.com/problems/permutations/\n- [ ] https://leetcode.com/problems/letter-case-permutation/\n- [ ] https://leetcode.com/problems/generate-parentheses/\n- [ ] https://leetcode.com/problems/generalized-abbreviation/\n- [ ] https://leetcode.com/problems/different-ways-to-add-parentheses/\n- [ ] https://leetcode.com/problems/unique-binary-search-trees-ii/\n- [ ] https://leetcode.com/problems/unique-binary-search-trees/\n\n## Pattern: Modified Binary Search\n- [ ] https://leetcode.com/problems/binary-search/ (Blind)\n- Couldn't find Ceiling of a Number\n- [ ] https://leetcode.com/problems/find-smallest-letter-greater-than-target/\n- [ ] https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/\n- [ ] https://leetcode.com/problems/search-in-a-sorted-array-of-unknown-size/\n- [ ] https://leetcode.com/problems/minimum-absolute-difference/ (Close)\n- Couldn't find Bitonic Array Maximum\n- Couldn't find Search Bitonic Array \n- [ ] https://leetcode.com/problems/search-in-rotated-sorted-array/ (Blind)\n- [ ] https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/ (Blind)\n\n## Pattern: Bitwise XOR\n- [ ] https://leetcode.com/problems/single-number/\n- [ ] https://leetcode.com/problems/single-number-iii/\n- [ ] https://leetcode.com/problems/complement-of-base-10-integer/\n- [ ] https://leetcode.com/problems/flipping-an-image/\n\n## Pattern: Top 'K' elements\n- Couldn't find Top 'K' elements\n- Couldn't find Kth Smallest Number\n- [ ] https://leetcode.com/problems/k-closest-points-to-origin/\n- [ ] https://leetcode.com/problems/minimum-cost-to-connect-sticks/\n- [ ] https://leetcode.com/problems/top-k-frequent-elements/ (Blind)\n- [ ] https://leetcode.com/problems/sort-characters-by-frequency/\n- [ ] https://leetcode.com/problems/kth-largest-element-in-a-stream/\n- [ ] https://leetcode.com/problems/find-k-closest-elements/\n- [ ] https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals/\n- Couldn't find Sum of Elements\n- [ ] https://leetcode.com/problems/reorganize-string/\n- [ ] https://leetcode.com/problems/rearrange-string-k-distance-apart/\n- [ ] https://leetcode.com/problems/task-scheduler/\n- [ ] https://leetcode.com/problems/maximum-frequency-stack/\n\n## Pattern: K-way merge\n- [ ] https://leetcode.com/problems/merge-k-sorted-lists/ (Blind)\n- Alternation to previous question\n- [ ] https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix/\n- [ ] https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/\n- [ ] https://leetcode.com/problems/find-k-pairs-with-smallest-sums/ \n\n## Pattern: 0/1 Knapsack (Dynamic Programming)\n- [ ] https://www.educative.io/courses/grokking-dynamic-programming-patterns-for-coding-interviews/RM1BDv71V60 (Free)\n- [ ] https://leetcode.com/problems/partition-equal-subset-sum/ or https://www.educative.io/courses/grokking-dynamic-programming-patterns-for-coding-interviews/3jEPRo5PDvx (Free)\n- [ ] https://leetcode.com/problems/subarray-sum-equals-k/ (Similar) or https://www.educative.io/courses/grokking-dynamic-programming-patterns-for-coding-interviews/3j64vRY6JnR (Free)\n- [ ] https://leetcode.com/problems/partition-array-into-two-arrays-to-minimize-sum-difference/ \n- [ ] https://leetcode.com/problems/combination-sum-ii/ or https://leetcode.com/problems/combination-sum-iv/ (Blind)\n- [ ] https://leetcode.com/problems/target-sum/\n\n## Pattern: Topological Sort (Graph)\n- Couldn't find Topological Sort\n- [ ] https://leetcode.com/problems/course-schedule/ (Blind)\n- [ ] https://leetcode.com/problems/course-schedule-ii/ \n- Alternation to previous question\n- [ ] https://leetcode.com/problems/alien-dictionary/ (Blind and Premium)\n- [ ] https://leetcode.com/problems/sequence-reconstruction/description/\n- [ ] https://leetcode.com/problems/minimum-height-trees/\n\n## Pattern: Multi-threaded\n- [ ] https://leetcode.com/problems/same-tree/ (Blind)\n- [ ] https://leetcode.com/problems/invert-binary-tree/ (Blind)\n- [ ] https://leetcode.com/problems/binary-search-tree-iterator/\n\n\n## Miscellaneous\n\n- [ ] https://leetcode.com/problems/kth-largest-element-in-an-array/\n"
  }
]