yilunchen27 / leetcode_category

Leetcode solutions organized by the problem categories

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Leetcode by Category

In this repo, I maintain my notes about Leetcode problems. I also included some notes about Lintcode and CodeForce problems.

Topics:

Basic:

  • DFS
  • BFS
  • Back Tracking
  • Binary Search
  • Bit Operation
  • Dynamic Programming (DP)
  • Knapsake Problems
  • Intervals
  • Parentheses Problems
  • Merge Sort
  • Shortest Distance
  • Random Number Generation
  • Regex Matching
  • Tree Traversal
  • Two Pointers Problems
  • Heap
  • Stack
  • Queue
  • kSum Problems

Intermediate:

  • Euler Path/Tour
  • Geometry Problems
  • DP of sequence operations
  • Monotonic Queue
  • Sparse Table
  • Strongly Connected Component
  • Topological Sort
  • Trie
  • Union Find

Advanced:

  • KMP
  • Morris Traversal
  • Segment Tree
  • Binary Index Tree (BIT)
  • Max-flow (and min-cost max-flow)
  • Wavelet Tree
  • Suffix Tree (Ukkonen's algorithm)

Others:

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Leetcode solutions organized by the problem categories


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