各种非算法模板

无限栈：

-Wl,--stack=998244353

lemon SPJ：

#include <bits/stdc++.h>

using namespace std;

ifstream fin,fout,fstd;
ofstream fscore,freport;
//　注意定义

double judge()
{
    /*
    关于读入与输出：与cin/cout类似
    Eg.
        fin >> x; //从输入文件里读入x
        freport << "too young too simple sometimes naive."; //提示错因
    */

    freport << "AC";
    return 1;
}

int main(int argc, char *argv[])
{
    fin.open(argv[1]);
    fout.open(argv[2]);
    fstd.open(argv[3]);
    fscore.open(argv[5]);
    freport.open(argv[6]);

    int score = atoi(argv[4]);
    fscore << score * judge() << endl;

    fin.close();
    fout.close();
    fstd.close();
    fscore.close();
    freport.close();
    return 0;
}

要么放在data下，要么在lemon的里面加上文件夹前缀，形如 D1T1spj.exe

linux对拍：后缀是.sh，运行命令是 sh ***.sh

#!/bin/bash
while true; do
    ./make
    ./my
    ./right
    if diff my.out right.out; then
        printf "AC "
    else 
        printf "WA
"
        exit 0
    fi
done

fread：更快的快读(只能读文件)

inline char gc() {
    static char *p1, *p2, s[N];
    if(p1 == p2) p2 = (p1 = s) + fread(s, 1, N, stdin);
    return (p1 == p2) ? EOF : *p1++;
}

template <class T> inline void read(T &x) {
    x = 0;
    char c = gc();
    bool f = 0;
    while(c < '0' || c > '9') {
        if(c == '-') f = 1;
        c = gc();
    }
    while(c >= '0' && c <= '9') {
        x = x * 10 + c - 48;
        c = gc();
    }
    if(f) x = (~x) + 1;
    return;
}

代码标准开头：

/**
 * There is no end though there is a start in space. ---Infinity.
 * It has own power, it ruins, and it goes though there is a start also in the star. ---Finite.
 * Only the person who was wisdom can read the most foolish one from the history.
 * The fish that lives in the sea doesn't know the world in the land.
 * It also ruins and goes if they have wisdom.
 * It is funnier that man exceeds the speed of light than fish start living in the land.
 * It can be said that this is an final ultimatum from the god to the people who can fight.
 *
 * Steins;Gate
 */