package main

//const FortyTwo = 42;
//var gooseLevel int = FortyTwo;
//type DuckType int;

func tri(x int) int {
	if x < 1 {
		return 0
	}
	return x + tri(x-1)
}

func factorial(x int) int {
	if x < 1 {
		return 1
	}
	return x * factorial(x-1)
}

func floating_factorial(x float64) float64 {
	if x < 1 {
		return 1
	}
	return x * floating_factorial(x-1)
}

func fib(x int) int {
	if x < 2 {
		return 1
	}
	return fib(x-2) + fib(x-1)
}

func factors(x int) (a, b int) {
	for i := 2; i < x; i++ {
		if x%i == 0 {
			return i, x / i
		}
	}
	return 0, 0
}

func main() {
	println(23)
	println(tri(5))
	println(factorial(5))
	println(floating_factorial(6.0))

	// See: // case *ast.AssignStmt:: TODO NEXT:  len x.Lhs != len x.Rhs
	a, b := factors(12)
	println(a, b)

	for i := 0; i < 10; i++ {
		println(i, fib(i))
	}
}