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PHP之mb_check_encoding使用
mb_check_encoding (PHP 4 = 4.4.3, PHP 5 = 5.1.3, PHP 7) mb_check_encoding — Check if the string is valid for the specified encoding mb_check_encoding ...
分类:Web程序   时间:2018-01-27 17:00:25    阅读次数:218
230. Kth Smallest Element in a BST
Given a binary search tree, write a function kthSmallest to find the kth smallest element in it. Note: You may assume k is always valid, 1 ≤ k ≤ BST's ...
分类:其他好文   时间:2018-01-24 22:11:50    阅读次数:118
98. Validate Binary Search Tree
Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows: The left subtree of a node contains only ...
分类:其他好文   时间:2018-01-24 19:56:13    阅读次数:164
spring
配置注解映射器和注解适配器激活基于注解的配置 @RequestMapping, @ExceptionHandler,数据绑定 ,@NumberFormat ,@DateTimeFormat ,@Controller ,@Valid ,@RequestBody ,@ResponseBody等<mvc: ...
分类:编程语言   时间:2018-01-23 20:41:12    阅读次数:145
680. Valid Palindrome II
Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. 判断字符串是不是回文,最多可以删除字符串的一个元素来使它成为回文。 解决:从字符 ...
分类:其他好文   时间:2018-01-20 22:45:35    阅读次数:202
Leetcode 261: Graph Valid Tree
Given n nodes labeled from 0 to n - 1 and a list of undirected edges (each edge is a pair of nodes), write a function to check whether these edges mak ...
分类:其他好文   时间:2018-01-20 10:57:58    阅读次数:134
36. Valid Sudoku 有效的数独
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... ...
分类:其他好文   时间:2018-01-20 00:20:28    阅读次数:185
LeetCode(61)-Valid Palindrome
题目: Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example, "A man, a plan, a canal ...
分类:其他好文   时间:2018-01-19 19:47:37    阅读次数:155
【easy】367. Valid Perfect Square 判断是不是平方数
class Solution { public: bool isPerfectSquare(int num) { /* //方法一:蜜汁超时…… if (num num) right = mid - 1; else left = mid + 1; } return false; ... ...
分类:其他好文   时间:2018-01-16 00:47:53    阅读次数:148
[leetcode]242. Valid Anagram判断两个字符串是不是包含相同字符的重排列
记住这种判断两个字符是不是重排列的方法,就是判断26个字母是不是出现次数相同。 当与字符相关问题是,要记得考虑26字母hashtable ...
分类:其他好文   时间:2018-01-15 18:48:58    阅读次数:172
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