我的頭文件(不斷更新)

#include<set>
#include<map>
#include<cmath>
#include<stack>
#include<queue>
#include<vector>
#include<string>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;

#define fi first
#define se second
#define fio ios::sync_with_stdio(false);cin.tie(0)

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> Pii;

const int INF = 0x3f3f3f3f;
const int M = 100005;
const int MOD = 1e9 + 7;
const double pi = acos(-1);

int main()
{

    return 0;
}