【leetcode】1390. Four Divisors 题目如下: Given an integer arraynums, return the sum of divisors of the integers in that array that have exactly four divisors. If there is no such integer in the array, return0. Example 1: Input: nums = [21,4,7] Output: 32 Explanation: 21 has 4 di...
A perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. A divisor of an integer x is an integer that can divide x evenly. Given an integer n, return true if n is a perfect number, otherwise return false. 对于一个 正整数,...
所以,为了提高大家的算法能力,这个公众号后续每天带大家做一道算法题,题目就从LeetCode上面选 ! 今天和大家聊的问题叫做完美数,我们先来看题面: leetcode-cn.com/problem A perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. A divisor ...
Given an integer array nums, return the sum of divisors of the integers in that array that have exactly four divisors. If there is no such integer in the array, return 0. Example 1: Input: nums = [21,4,7] Output: 32 Explanation: 21 has 4 divisors: 1, 3, 7, 21 4 has 3 divis...
LeetCode 1390. Four Divisors四因数【Medium】【Python】【数学】 Problem LeetCode Given an integer arraynums, return the sum of divisors of the integers in that array that have exactly four divisors. If there is no such integer in the array, return0. ...
Given an integer array nums, return the sum of divisors of the integers in that array that have exactly four divisors. If there is no such integer in the array, return 0. Example 1: Input: nums = [21,4,7] Output: 32 Explanation: 21 has 4 divisors: 1, 3, 7, 21 4 has 3 divis...
不存在别的 n 有至多 5 个质因子,且同时有更多的好因子。 示例2: 输入:primeFactors = 8输出:18 提示: 1 <= primeFactors <= 109 排序:最热 © 2025 领扣网络(上海)有限公司 47 60 1 2 3 4 5 6 classSolution{ public: intmaxNiceDivisors(intprimeFactors) { } };...
matrix-diagonal-sum max-area-of-island max-chunks-to-make-sorted-ii max-chunks-to-make-sorted max-consecutive-ones-iii max-consecutive-ones max-increase-to-keep-city-skyline max-points-on-a-line maximize-number-of-nice-divisors maximize-score-after-n-operations maximize-the-con...
class Solution { public: int sumFourDivisors(vector<int>& nums) { int ans=0; for (auto x:nums){ int m=sqrt(x+0.5); int sum=0,cnt=0; for (int i=1;i<=m;++i){ if (x%i==0){ cnt++; sum+=i; if (x!=i*i){ cnt++; sum+=x/i; } } } if (cnt==4) ans+=sum; ...
We define the Perfect Number is a positive integer that is equal to the sum of all its positive divisors except itself. Now, given an integer n, write a function that returns true when it is a perfect number and false when it is not. Example: Input: 28 Output: True Explanation: 28...