#include <stdio.h>

int power(int m, int n);

/* test power function */ 
main()
{
  int i;

  for (i =0; i < 10; ++i)
    printf("%d %d %d\n", i, power(2,i), power(-3,i));
  return 0;
}

/* power: raise base to n-th power; n >= 0; version 2 */ 
/* arguments passed into funcs are copies of the value and 
   are not altering the passed in var; "by value" */
int power(int base, int n)
{
  int p;

  for (p = 1; n > 0; --n)
    p = p * base;
  return p;
}