c++竞赛标准框架

#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <cmath>
#include <vector>
#include <cstring>
#include <map>
#include <set>
#include <queue>
#include <algorithm>
using namespace std;
inline int read()
{
    int s=0,w=1;
    char ch=getchar();
    while (ch<=‘0‘||ch>‘9‘)
    {
        if (ch==‘-‘) w=-1;
        ch=getchar();
    }
    while (ch>=‘0‘&&ch<=‘9‘)
    {
        s=s*10+ch-‘0‘;
        ch=getchar();
    }
    return s*w;
}
int main()
{
    ios::sync_with_stdio(false);
    //freopen(".in","r",stdin);
    //freopen(".out","w",stdout);
    
    return 0;
}