/in/foo.cc: In function 'int main()':
/in/foo.cc:30:19: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
    printf("%d\n",y);
                   ^
/in/foo.cc:37:20: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
     printf("%d\n",y);
                    ^
/in/foo.cc:42:20: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
     printf("%d\n",y);
                    ^