acm竞赛头文件，宏定义板子

蒟弱自己的板子 ,发现什么还需要后需补上

#include<bits/stdc++.h>
using namespace std;
#define mem(a,b) memset(a,b,sizeof a)
#define PII pair<int,int>
#define ll long long
#define ull unsigned long long
#define IOS ios::sync_with_stdio(0),cin.tie(0)
#define gcd(a,b) __gcd(a,b)
#define ft first
#define sd second
#define endl '\n'
#define PI acos(-1.0)
#define lcm(a,b) a/gcd(a,b)*b
#define INF_INT 0x3f3f3f3f
#define INF_LONG 4557430888798830399
#define rep(i,x,y) for(int i=x; i<=y; ++i)
#define pre(i,x,y) for(int i=x; i>=y; --i) 
#define x1 x111111
#define y1 y111111
#define x0 x00000
#define y0 y00000
#define lp p<<1
#define rp p<<1|1
#define pushk push_back
#define popk pop_back
//inline void print(__int128 x)
//{
//	if(x<0) {putchar('-'); x=-x;}
//	if(x>9) print(x/10);
//	putchar(x%10+'0');
//}
//inline int read()
//{
//	int s=0,x=1;
//	char ch=getchar();
//	while(ch<'0'||ch>'9') {if(ch=='-') x=-1; ch=getchar();}
//	while(ch>='0'&&ch<='9'){s=s*10+ch-'0';ch=getchar(); }
//	return s*x;
//} 
const int N = 1e5+9;
int main()
{
	return 0;
 }