对拍模板

#include<bits/stdc++.h>
using namespace std;
int main(){
  while(true)
  {
      system("data.exe>data.in");
      system("ac.exe<data.in>ac.out");
      system("wa.exe<data.in>wa.out");
      if(system("fc ac.out wa.out"))
      {
          system("pause");
      }
  }
  return 0;
}