func orZero(a int) int {
	if a < 0 {
		return 0
	}
	return a
}
// OrZero returns a or zero if a is negative.
OrZero returns a or zero if a is negative.
// OrZero returns a or zero if a is negative .
func orZero(a int) int {
	if a < 0 {
		return 0
	}
	return a
}
func orZero ( a int ) int { if a < 0 { return 0 } return a }
OrZero returns a or zero if a is negative.
OrZero returns a or zero if a is negative .