217. Contains Duplicate
Given an array of integers, find if the array contains Continue reading 217. Contains Duplicate
修改ssh默认22端口为其他端口
1，SSH访问配置文件为 /etc/ssh/sshd_config 。 #vi /etc/ssh/sshd_cContinue reading 修改ssh默认22端口为其他端口
202. Happy Number
Write an algorithm to determine if a number is &Continue reading 202. Happy Number
git 使用
# 克隆远端代码 git clone https://github.com/ccagml/test_git #Continue reading git 使用
168. Excel Sheet Column Title
Given a positive integer, return its corresponding coluContinue reading 168. Excel Sheet Column Title