Gathering
Great Cow Gathering G
# Great Cow Gathering G ## 思路 换根dp，[Tree Distances I](https://www.cnblogs.com/ybtarr/p/17632352.html) 强化版，同样的先思考单个的，那么对于子树 $u$ 对于每一个儿子 $v$ 都有：$f_u = f ......
Information Gathering - Identifying Website Technologies
Information Gathering - Identifying Website Technologies By Online Websites https://builtwith.com By Browser Extensions Wappalyzer By Open Source Tool ......
Information Gathering - SubDomains Finding
SubDomains Finding By Online Websites https://crt.sh/ crt.sh 通过证书记录查询子域名, %为通配符 By Open source Tools sublist3r 安装 在kali中使用 apt install sublist3r即可安装，或 ......
P2986 Great Cow Gathering G
换根dp, father -> son , 基本是加减 #include <bits/stdc++.h> using namespace std ; const int N=1e5+2,M=N*5; #define int long long int n,a[N],sz[N],g[N],f[N],S ......