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 ...
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Web程序 时间:
2018-01-27 17:00:25
阅读次数:
218
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 ...
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其他好文 时间:
2018-01-24 22:11:50
阅读次数:
118
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 ...
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其他好文 时间:
2018-01-24 19:56:13
阅读次数:
164
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: ...
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编程语言 时间:
2018-01-23 20:41:12
阅读次数:
145
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 ...
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其他好文 时间:
2018-01-20 22:45:35
阅读次数:
202
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 ...
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其他好文 时间:
2018-01-20 10:57:58
阅读次数:
134
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... ...
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其他好文 时间:
2018-01-20 00:20:28
阅读次数:
185
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 ...
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其他好文 时间:
2018-01-19 19:47:37
阅读次数:
155
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; ... ...
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其他好文 时间:
2018-01-16 00:47:53
阅读次数:
148
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 ...
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其他好文 时间:
2018-01-15 18:48:58
阅读次数:
172