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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
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:
1 <= n <= 10^5
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