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1. Commits on Oct 22, 2026

   • update binary search template and lc704 binary search

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2. Commits on Jul 25, 2026

   • lc3514 Number of Unique XOR Triplets II

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3. Commits on Jul 4, 2026

   • lc2492_minimum_score_of_a_path_between_two_cities, lc1506_find_root_of_n_Ary_tree, lc_tools

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4. Commits on Jan 27, 2026

   • lc3453 separate squares i binary search real number

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5. Commits on Jan 10, 2026

   • lc 3638 maximum balanced shipments

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6. Commits on Jan 8, 2026

   • lc1411 number of ways to paint Nx3 grid

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   • update lc 509 fibonacci number

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   • lc 509 fibonacci number

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7. Commits on Aug 4, 2024

   • organize notes/templates by topic/folders

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8. Commits on Jan 15, 2023

   • lc2536 increment submatrices by one - prefix sum for each row

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   • lc0370 range addition - prefix sum

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9. Commits on Nov 30, 2022

   • lc0854 k similar strings - BFS

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10. Commits on Nov 29, 2022

    • lc0859 buddy string - two cases, s==goal (at least one dup char) and s!=goal (swap once)

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11. Commits on Nov 27, 2022

    • lc0325 maximum size subarray sum equals k - prefix sum

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    • lc1642 furthest building you can reach - Heap / Binary Search

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12. Commits on Nov 25, 2022

    • one template for calculator I, II or III

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    • lc2008 maximum earnings from taxi - DP

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13. Commits on Nov 22, 2022

    • lc0121 best time to buy and sell stock - sliding window or subarray sum

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14. Commits on Nov 20, 2022

    • lc0838 push dominoes - Two Pointers / Simulation

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    • lc2476 closest nodes queries in a binary search tree - Binary Search

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    • lc2477 minimum fuel cost to report to the capital - DFS

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    • lc2477 minimum fuel cost to report to the capital - DFS

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    • lc2476 closest nodes queries in a binary search tree - binary search

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15. Commits on Nov 19, 2022

    • lc0886 possible bipartition - DFS or Union-Find

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16. Commits on Nov 18, 2022

    • lc0556 Next Greater Element iii - next permutation

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    • lc1166 Design File System - Hash Map / Trie

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17. Commits on Nov 16, 2022

    • lc0858 mirror reflection - Geometry

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18. Commits on Nov 15, 2022

    • lc0826 most profit assigning work - Two Pointers

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    • lc1387 sort integers by the power value - DP / sort

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19. Commits on Nov 14, 2022

    • lc1236 web crawler - BFS

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    • lc1347 minimum number of steps to make two strings anagram - Hash table

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20. Commits on Nov 12, 2022

    • lc0723 candy cursh - Matrix

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21. Commits on Nov 6, 2022

    • lc2461 maximum sum of distinct subarrays with length k - sliding window

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22. Commits on Oct 23, 2022

    • lc2447 number of subarrays with gcd equal to k - double loop, early break if < k or %k != 0, also consider keep track of gcd of prefix of array, and calculate gcd of new array by adding one more el…

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23. Commits on Sep 14, 2022

    • lc0130 surrounded regions - dfs

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