本文介绍: 【代码】LeetCode1281. Subtract the Product and Sum of Digits of an Integer。
一、题目
Given an integer number n, return the difference between the product of its digits and the sum of its digits.
Example 1:
Input: n = 234
Output: 15
Explanation:
Product of digits = 2 * 3 * 4 = 24
Sum of digits = 2 + 3 + 4 = 9
Result = 24 – 9 = 15
Example 2:
Input: n = 4421
Output: 21
Explanation:
Product of digits = 4 * 4 * 2 * 1 = 32
Sum of digits = 4 + 4 + 2 + 1 = 11
Result = 32 – 11 = 21
Constraints:
1 <= n <= 10^5
二、题解
class Solution {
public:
int subtractProductAndSum(int n) {
int mul = 1;
int sum = 0;
while(n){
int b = n % 10;
n /= 10;
mul *= b;
sum += b;
}
return mul - sum;
}
};
原文地址:https://blog.csdn.net/weixin_46841376/article/details/135381424
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