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

#define SIZE 1000000
int a[SIZE];

int factorial (int n) {
  return (n>0 ? n*factorial(n-1) : 1);
}

int funcao (void) {
  int sum, i;

  sum=0;
  for (i=1 ; i<SIZE ; i++) {
    sum += a[i];
    a[i] = factorial (a[i]);
  }
  return (sum);
}

main () {
  int i, res;

  for (i=0 ; i< SIZE ; i++)
    a[i] = (int) (100.0 * rand() / (RAND_MAX+1.0));

  res = funcao ();
  printf ("Resultado = %d\n", res);

  printf ("That's all, folks!\n");
}