Open carloscn opened 1 year ago
pub fn subtract_product_and_sum(n: i32) -> i32
{
if n < 1 {
return 0;
}
let mut product:i32 = 1;
let mut sum:i32 = 0;
let mut nd:i32 = n;
while nd != 0 {
let e:i32 = nd % 10;
product *= e;
sum += e;
nd /= 10;
}
return product - sum;
}
问题描述
给你一个整数 n,请你帮忙计算并返回该整数「各位数字之积」与「各位数字之和」的差。
示例 1:
输入:n = 234 输出:15 解释: 各位数之积 = 2 3 4 = 24 各位数之和 = 2 + 3 + 4 = 9 结果 = 24 - 9 = 15
示例 2:
输入:n = 4421 输出:21 解释: 各位数之积 = 4 4 2 * 1 = 32 各位数之和 = 4 + 4 + 2 + 1 = 11 结果 = 32 - 11 = 21
提示:
来源:力扣(LeetCode) 链接:https://leetcode.cn/problems/subtract-the-product-and-sum-of-digits-of-an-integer