23_power_rec/power.c


1
2
3
4
5
6
7
8
9
10
11
12

#include <stdio.h>
#include <stdlib.h>

unsigned power(unsigned x, unsigned y) {
  if (y == 0) {
    return 1;
  }
  if (y == 1) {
    return x;
  }
  return x * power(x, y-1);
}