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【规律】Parentheses
Parentheses 题目描述 Dave loves strings consisting only of '(' and ')'. Especially, he is interested in balanced strings. Any balanced strings can be cons ...
分类:其他好文   时间:2019-09-03 21:56:48    阅读次数:62
【LeetCode】93. Restore IP Addresses 【面试题】
Restore IP Addresses Given a string containing only digits, restore it by returning all possible valid IP address combinations. For example:Given  ...
分类:其他好文   时间:2019-09-03 11:55:40    阅读次数:75
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:2019-09-03 11:32:27    阅读次数:70
Contest1657 - 2019年我能变强组队训练赛第十四场
Contest1657 - 2019年我能变强组队训练赛第十四场 Similarity of Subtrees We don't wanna work! Parentheses ...
分类:其他好文   时间:2019-09-02 19:49:41    阅读次数:116
1178. Number of Valid Words for Each Puzzle
题目说明 本题目是2019年9月1日LeetCode周赛的最后一题 题目描述 With respect to a given puzzle string, a word is valid if both the following conditions are satisfied: word con ...
分类:其他好文   时间:2019-09-01 22:07:24    阅读次数:97
SpringBoot_@valid_参数校验
SpringBoot @valid 参数校验 ~~~java 空检查 @Null 验证对象是否为null @NotNull 验证对象是否不为null, 无法查检长度为0的字符串 @NotBlank 检查约束字符串是不是Null还有被Trim的长度是否大于0,只对字符串,且会去掉前后空格. @NotE ...
分类:编程语言   时间:2019-09-01 16:45:00    阅读次数:682
Leetcode-5176 Number of Valid Words for Each Puzzle(猜字谜)
1 #define _for(i,a,b) for(int i = (a);i b;i --) 3 class Solution 4 { 5 public: 6 vector findNumOfValidWords(vector& words, vector& puzzles) 7 { 8 map ... ...
分类:其他好文   时间:2019-09-01 14:53:01    阅读次数:117
laravel 图片
/** * 缩略图上传 */ public static function addPic() { $inputData = request()->all(); $rules = [ 'main_img' => [ 'image','max:10240' ] ]; $validator = Valid ...
分类:其他好文   时间:2019-08-31 19:03:30    阅读次数:91
(Easy) Valid Boomerang - LeetCode
Description: A boomerang is a set of 3 points that are all distinct and not in a straight line. Given a list of three points in the plane, return whet ...
分类:其他好文   时间:2019-08-29 13:26:50    阅读次数:78
(Easy) Valid Palindrome -LeetCode
Description: Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. Note: For the purpose of th ...
分类:其他好文   时间:2019-08-28 18:23:42    阅读次数:89
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