#include <stdio.h>
#include "functions.h"

unsigned long combinations(unsigned int m, unsigned int n) {
  printf("m=%2u, n=%2u, &m=%p, &n=%p\n", m, n, &m, &n) ;
  if (m==0) {
    return 1 ;
  } else {
    return (n-m+1)*combinations(m-1,n)/m ;
  }
}