/in/foo.cc: In function 'int main()':
/in/foo.cc:36:20: warning: format '%d' expects argument of type 'int', but argument 2 has type 'll {aka long long int}' [-Wformat=]
     printf("%d\n",q);
                    ^
/in/foo.cc:14:8: warning: unused variable 't' [-Wunused-variable]
     ll t = c * cc;
        ^
/in/foo.cc:33:22: warning: 'nn' may be used uninitialized in this function [-Wmaybe-uninitialized]
     ll q = abs(ans-n)/nn;
            ~~~~~~~~~~^~~