// product.c
// Bob Myers
//
// A typical kind of for-loop algorithm -- multiplying things

#include <stdio.h>

int main()
{
  int value;
  long product = 1;			// initialize an accumulator variable
  int i;				// loop counter

  printf("Enter an integer: ");
  scanf("%d", &value);

  for (i = 1; i <= value; i++)
  {
     if (i % 5 == 0)			// if the index is divisible by 5
        product = product * i;		//  multiply it in to the accumulator
  }

  printf("In the range 1 through %d,\n", value);
  printf("\tthe product of the numbers that are divisible by 5 = %d\n",  
			product);

  return 0;
}