运行 ID: 74281

Main.cc: In function ‘int main()’:
Main.cc:18:39: error: expected primary-expression at end of input
         cout << (n % 2 == 0 ? 1 : -1) <<
                                       ^~
Main.cc:18:39: error: expected ‘}’ at end of input
Main.cc:18:39: error: expected ‘}’ at end of input