win32/examples/fib.c

   1 #include <stdio.h>
   2 #include <stdlib.h>     // atoi()
   3
   4 int fib(n)
   5 {
   6         if (n <= 2)
   7                 return 1;
   8         else
   9                 return fib(n-1) + fib(n-2);
  10 }
  11
  12 int main(int argc, char **argv)
  13 {
  14         int n;
  15         if (argc < 2) {
  16                 printf("usage: fib n\n"
  17                            "Compute nth Fibonacci number\n");
  18                 return 1;
  19         }
  20
  21         n = atoi(argv[1]);
  22         printf("fib(%d) = %d\n", n, fib(n));
  23         return 0;
  24 }