Driver Code
int main ( void ) { int n = 20 ; cout << " Count ▁ for ▁ " << n << " ▁ is ▁ " << count ( n ) << endl ; n = 13 ; cout << " Count ▁ for ▁ " << n << " ▁ is ▁ " << count ( n ) << endl ; return 0 ; }