foo.cc: In function ‘int main()’:
foo.cc:45:23: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=]
   45 |         else printf("%d\n",qmi(n-2));
      |                      ~^    ~~~~~~~~
      |                       |       |
      |                       int     long long int
      |                      %lld