2018年2月的全部文章
@kidultff

PAT-A 真题- 1053. Path of Equal Weight

原题干：Given a non-empty tree with root R, and with weight Wi assigned to each tree node Ti. The weight of a path from R to L is defined to be the sum of the weights of all the nodes along the path from R to any l ...
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@kidultff

Linux查找含有某些字符串的所有文件

批量查找文件内容：find . -name "*.log" | xargs grep "fatal"这里*.log指的是要找的文件的后缀名，fatal是要找的内容。
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@kidultff

CentOS升级/安装PHP7.1

首先卸载旧版本PHP：yum remove php*接着安装epel：yum -y install epel-release更新软件源（centos自带的软件源没有PHP7）：根据系统版本安装！！//Centos 5.X：     rpm -Uvh http ...
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@kidultff

C语言-树的遍历

0x00、树的静态写法    之前刷PAT的过程中已经接触过树的静态写法了，不过之前接触过的都是二叉树，这里是树。使用数组当做内存，下标当做地址，即可存放静态树。比如这样：struct node{     Elemen ...
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@kidultff

PAT-A 真题- 1102. Invert a Binary Tree

原题干：The following is from Max Howell @twitter:Google: 90% of our engineers use the software you wrote (Homebrew), but you can't invert a binary tree on a whiteboard so fuck off.Now it's your turn to prove that YOU CAN invert ...
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