/in/foo.cc: In function 'int main()':
/in/foo.cc:19:24: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long int*' [-Wformat=]
   scanf("%d %d\n",&x,&y);
                   ~~   ^
/in/foo.cc:19:24: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long int*' [-Wformat=]