/in/foo.cc: In function 'int main()':
/in/foo.cc:34:22: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
  printf("%I64d\n",cnt);
                      ^
/in/foo.cc:35:51: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
  for(int i=1; i<=cnt; i++) printf("%I64d\n",cou[i]);
                                                   ^