/in/foo.cc: In function 'int main()':
/in/foo.cc:28:24: warning: format '%lld' expects argument of type 'long long int*', but argument 2 has type 'int*' [-Wformat=]
  while(scanf("%lld", &n) != EOF) {
                      ~~^
/in/foo.cc:44:24: warning: format '%lld' expects argument of type 'long long int*', but argument 2 has type 'int*' [-Wformat=]
  while(scanf("%lld", &n) != EOF) {
                      ~~^