Mã chấm: 271502

Main.cc: In function ‘int main()’:
Main.cc:11:5: error: expected primary-expression before ‘return’
     return 0;
     ^~~~~~
Main.cc:8:9: warning: unused variable ‘N’ [-Wunused-variable]
     int N,X,Y;
         ^
Main.cc:8:13: warning: unused variable ‘Y’ [-Wunused-variable]
     int N,X,Y;
             ^