OJ Board

I test all the test cases I found here and all of them are right.
it's my code, it's make me happy if you can find any problem

#include<iostream>
#include<fstream>
#include<math.h>
#include<string>
#include<algorithm>
#include <iomanip>

using namespace std;

int main()
{
int n=0;
int m=0;
int ...