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经典算法题汇编
Trie Template
Queue Reconstruction by Height
Get Rand10 from Rand7
Quick Sort Template
Merge Sort Template
Union Find Template
Validate Binary Tree
Distribute Coins
BST Iterator
Inorder Successor
Length of Cycle in Linkedlist
Number of Valid Subarrays
Maximum Score Words Formed by Letters
Flip Columns For Max Equal Rows
Longest Common Substring (Shortest Common Superstring)
Elimination Game
Decode String
Longest Substring with At Least K Repeating Characters
973. K Closest Points to Origin
Dynamic Programming 专题
Knapsack
Product Except Itself
- Find the Number of “Balance” in the String
Tree
Graph专题
- 1334. Find the City With the Smallest Number of Neighbors at a Threshold Distance
BFS专题
Trie 专题
- Longest Common PrefixSolution
Math
HashMap
- 380. Insert Delete GetRandom O(1)
- 451. Sort Characters By Frequency
Array
单调Stack
Binary Search 专题
- 436. Find Right Interval
Two Pointer
- 3 SUM
- 75. Sort Colors
Sliding Window
Matrix专题
面经
number of islands专题
- Number of Islands
- Surrounded Regions
Coin Change
- 1414. Find the Minimum Number of Fibonacci Numbers Whose Sum Is K
Recursion
Bitwise Manipulation
- Bitwise AND of Numbers Range
LinkedList
Graph 图论

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Array

Intervals 专题

Previous1442. Count Triplets That Can Form Two Arrays of Equal XOR Next352. Data Stream as Disjoint Intervals

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