我的剪贴板

//file headers start
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define fileop(s) freopen(#s".in", "r", stdin), freopen(#s".out", "w", stdout)
#define rep(i, j, k) for(int i = (j); i <= (k); ++i)
#define per(i, j, k) for(int i = (j); i >= (k); --i)
#define clrsz(x) memset(x, 0, sizeof x)

int read(){
	int f = 1, ans = 0; char c = getchar();
	while(!isdigit(c)) {
		if(c == '-') f = -1;
		c = getchar();
	}
	while(isdigit(c)) {
		ans = ans * 10 + c - '0';
		c = getchar();
	}
	return ans * f;
}
void put(int num) { printf("%d\n", num); }
void testread() { while(1) { int k = read(); put(k); if(!k) break;}}
//file headers end

network flow : http://www.cs.princeton.edu/~wayne/kleinberg-tardos
https://www.cnblogs.com/SYCstudio/p/7260613.html

http://101.96.10.64
7.胡伯涛《最小割模型在信息学竞赛中的应用》

[数论]线性求所有逆元的方法

扩展欧几里得算法与(扩展)中国剩余定理

//玄学优化
https://paste.ubuntu.com/p/JWWSsCbwmM/

https://send.firefox.com/download/ccd7a42e03/#lus2iLNPaTKyZCi69zRIHg

#!/bin/bash
while true; do
    ./gen > tst.in
    ./my < tst.in > my.out
    ./std < tst.in > std.out
    if diff my.out std.out -b ; then
        printf "AC\n"
    else 
        printf "WA\n"
        exit 0
    fi
done

[二分图相关定理及其证明（最小点覆盖+最小路径覆盖+最大独立集+最小覆盖集）

](https://blog.csdn.net/qq_34564984/article/details/52778763)

如何生成随机数

Gedit 编译运行脚本

#!/bin/sh
dir=$GEDIT_CURRENT_DOCUMENT_DIR
name=$GEDIT_CURRENT_DOCUMENT_NAME
pre=${name%.*}
g++ $dir/$name -o $pre -g -Wall
if test $? -eq 0; then
    gnome-terminal -x bash -c "time $dir/$pre;echo;read;"
fi  

https://blog.csdn.net/weixin_34402408/article/details/93817915