/in/foo.cc: In function 'int main()':
/in/foo.cc:9:38: warning: format '%f' expects argument of type 'double', but argument 2 has type 'int' [-Wformat=]
    9 |         int n,m;cin>>n>>m;printf("%.3f",n/m/100);cout<<'%';
      |                                   ~~~^  ~~~~~~~
      |                                      |     |
      |                                      |     int
      |                                      double
      |                                   %.3d