题目：

题解：

func integerBreak(n int) int {
    if n <= 3 {
        return n - 1
    }
    quotient := n / 3
    remainder := n % 3
    if remainder == 0 {
        return int(math.Pow(3, float64(quotient)))
    } else if remainder == 1 {
        return int(math.Pow(3, float64(quotient - 1))) * 4
    }
    return int(math.Pow(3, float64(quotient))) * 2
}