RecursionAndIteration.go

package main

import "fmt"

func factorial_iter(product, counter, max_count int) int {
	if counter > max_count {
		return product
	} else {
		return factorial_iter(counter*product, counter+1, max_count)
	}
}

func factorial2(n int) int {
	return factorial_iter(1, 1, n)
}

func factorial(n int) int {
	if n > 0 {
		return factorial(n-1) * n
	} else {
		return 1
	}
}

func main() {
	result1 := factorial(6)
	result2 := factorial2(6)
	fmt.Println(result1, result2)
}