题解 | #剪绳子#

贪心，建议直接记官方题解的结论。

class Solution {
public:
    int cutRope(int number) {
        if (number <= 3) return number - 1;
        if (number == 4) return number;
        int res = 1;
        while (number > 4) {
            res *= 3;
            number -= 3;
        }
        return number * res;
    }
};