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[LeetCode] Anagrams Given an array of strings, return all groups of strings that are anagrams. Note: All inputs will be in lower-case. 思路： Anagrams指几个 阅读全文
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题目描述 Implement pow(x, n). AC: class Solution { public: double pow(double x, int n) { if(x == 0 && n == 0) return 1; if(x == 0) return 0; if(n == 0) re 阅读全文
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N-Queens The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, re 阅读全文