foo.cc: In function ‘int main()’:
foo.cc:5:17: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=]
    5 |         scanf("%d",&n);
      |                ~^  ~~
      |                 |  |
      |                 |  long long int*
      |                 int*
      |                %lld