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LeetCode-20 Valid Parentheses Solution (with Java)
1. Description: 2. Examples: 3.Solutions: 1 /** 2 * Created by sheepcore on 2019-05-07 3 */ 4 5 class Solution { 6 public boolean isValid(String s) { ...
分类:编程语言   时间:2020-03-02 14:28:01    阅读次数:68
[LeetCode 1368] Minimum Cost to Make at Least One Valid Path in a Grid
Given a m x n grid. Each cell of the grid has a sign pointing to the next cell you should visit if you are currently in this cell. The sign of grid[i] ...
分类:其他好文   时间:2020-03-02 10:51:12    阅读次数:71
leetcode150 Evaluate Reverse Polish Notation
1 """ 2 Evaluate the value of an arithmetic expression in Reverse Polish Notation. 3 Valid operators are +, -, *, /. Each operand may be an integer or ...
分类:其他好文   时间:2020-03-01 09:15:40    阅读次数:51
1359. Count All Valid Pickup and Delivery Options
Given n orders, each order consist in pickup and delivery services. Count all valid pickup/delivery possible sequences such that delivery(i) is always ...
分类:其他好文   时间:2020-02-25 13:02:43    阅读次数:95
SpringMVC数据校验并通过国际化显示错误信息
[toc] SpringMVC数据校验并通过国际化显示错误信息 SpringMVC数据校验 LocalValidatorFactoryBean`,通过在处理方法的入参上标注 @Valid 注解即可让Spring MVC在完成数据绑定后执行数据校验的工作。 首先,我们在实体类上标注JSR303校验注解 ...
分类:编程语言   时间:2020-02-24 13:28:29    阅读次数:97
LeetCode 678. Valid Parenthesis String 有效的括号字符串 (C++/Java)
题目: Given a string containing only three types of characters: '(', ')' and '*', write a function to check whether this string is valid. We define the ...
分类:编程语言   时间:2020-02-22 23:46:53    阅读次数:104
Raspberry开启smaba服务
安装 samba sudo apt-get install samba 修改samba服务配置 sudo vi /etc/samba/smb.conf [disk1] path = /export/home/disk1 valid user = root pi browseable = yes pu ...
分类:Web程序   时间:2020-02-22 16:05:16    阅读次数:75
寒假学习进度十九
今天发现自己的Android studio版本有些低,于是删除重新在官网下载了最新版本的,结果新建项目会报错,unable to find valid certification path to requested target,今天没有解决明天再说 ...
分类:其他好文   时间:2020-02-19 23:40:38    阅读次数:63
98. Validate Binary Search Tree
Problem : 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 con ...
分类:其他好文   时间:2020-02-17 21:21:48    阅读次数:105
2用MySQL 设计新闻表
ID: 新闻的唯一标示 title:新闻的标题 content: 新闻的内容 created_at: 新闻添加的时间types: 新闻的类型 image: 新闻的缩略图 author: 作者 view_count: 浏览量 is_valid: 删除标记 物理删除 逻辑删除 CREATE TABLE ...
分类:数据库   时间:2020-02-14 18:49:36    阅读次数:178
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