LC.P2591[将钱分给最多的儿童]

方法一：分类讨论

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class Solution {
    public int distMoney(int money, int children) {
        if (money < children) return -1;
        if (money > 8 * children) return children - 1;
        if (money == 8 * children - 4) return children - 2;
        return (money - children) / 7;
    }
}
  • 时间复杂度：$O(1)$
  • 空间复杂度：$O(1)$