对拍

1. 目录结构

   root
   ├─.vscode
   │  └─settings.json
   ├─bin
   ├─code
   │  ├─random.cpp
   │  ├─solve.cpp
   │  ├─std.cpp
   │  └─test.cpp
   └─io
      ├─diff.log
      ├─in.txt
      ├─out.txt
      └─std_out.txt
   

2. test.cpp

   #include <bits/stdc++.h>
   
   int main() {
       int t = 10;
   
       system("g++ random.cpp -o ..\\bin\\random");
       system("g++ solve.cpp -o ..\\bin\\solve");
       system("g++ std.cpp -o ..\\bin\\std");
   
       std::cout << "Running tests...\n";
   
       for (int i = 0; i < t; i++) {
           system("..\\bin\\random.exe > ..\\io\\in.txt");
           system("..\\bin\\solve.exe < ..\\io\\in.txt > ..\\io\\out.txt");
           system("..\\bin\\std.exe < ..\\io\\in.txt > ..\\io\\std_out.txt");
           if (system(
                   "chcp 65001 > nul & fc ..\\io\\out.txt ..\\io\\std_out.txt  > "
                   "..\\io\\diff.log")) {
               std::cout << "Test case " << i + 1 << " failed\n";
               break;
           }
           std::cout << "Test case " << i + 1 << " passed\n";
       }
   
       return 0;
   }