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转载 LeetCode 36. Valid Sudoku
Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules. The Sudoku board could be partially filled, where empty cells are filled with the character '.'. A partially fille
2017-07-25 22:08:58
204
原创 LeetCode 17. Letter Combinations of a Phone Number
Given a digit string, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on the telephone buttons) is given below. Input:Digit st
2017-07-22 10:14:56
197
原创 LeetCode 11. Container With Most Water
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two
2017-07-21 17:21:38
199
原创 LeetCode 5.Longest Palindromic Substring的DP解法
题目描述: Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. 翻译:给定一个string s,找出s的最大回文子串,假设字符串长度最长为1000. example:
2017-07-20 16:23:47
370
原创 struct内存对齐
关于C++中的struct内存对齐,应该也是初学者比较疑惑的一个知识点,但是搞清楚之后会发现非常简单,这里解释一下struct内存到底怎么对齐。 主要记住以下两点: 1.各成员变量存放的起始地址相对于结构的起始地址的偏移量必须为该变量的类型所占用的字节数的倍数 2.整个struct的内存大小需为struct中最大字节数变量的整数倍 下面举个例子: struct A{
2017-07-10 22:06:08
294
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