the notes and answers of leetcode practice
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Array,Hash Table,Linked List,Tree,Two Pointers,String,Binary Search,Greedy,Queue,Heap,Stack
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Graph,Breadth-first Search,Depth-first Search,Sort,Backtracking,Recursion/Dynamic Programming/Memoization,Divide and Conquer,Binary Search Tree
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Union Find,Topologial Sort,Trie,Binary Indexed Tree,Segment Tree,Minimax