运行 ID: 88965

Main.cc: In function ‘int main()’:
Main.cc:4:2: error: ‘longlong’ was not declared in this scope
  longlong a,b;
  ^~~~~~~~
Main.cc:4:2: note: suggested alternative: ‘ulong’
  longlong a,b;
  ^~~~~~~~
  ulong
Main.cc:5:10: error: ‘a’ was not declared in this scope
     cin>>a>>b;
          ^
Main.cc:5:13: error: ‘b’ was not declared in this scope
     cin>>a>>b;
             ^