Run id: 66144

Main.cc: In function 'int main()':
Main.cc:7:2: error: expected unqualified-id before 'bool'
  bool f=0;
  ^
Main.cc:15:7: error: 'f' was not declared in this scope
       f=1;
       ^
Main.cc:19:8: error: 'f' was not declared in this scope
     if(f=0){
        ^