Run id: 87733

Main.cc: In function 'int main()':
Main.cc:16:19: error: 'f' cannot be used as a function
             if(f(j)&&f(i-j)&&i-j>2)
                   ^
Main.cc:16:27: error: 'f' cannot be used as a function
             if(f(j)&&f(i-j)&&i-j>2)
                           ^