运行 ID: 78420

Main.cc:7:8: warning: missing terminating " character
  cout<<"a+b;
        ^
Main.cc:7:8: error: missing terminating " character
  cout<<"a+b;
        ^~~~~
Main.cc: In function ‘int main()’:
Main.cc:8:2: error: expected primary-expression before ‘return’
  return 0;
  ^~~~~~