Package g1301_1400.s1390_four_divisors

Class Solution

java.lang.Object
g1301_1400.s1390_four_divisors.Solution
public class Solution extends java.lang.Object
1390 - Four Divisors.

Medium

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 divisors: 1, 2, 4

7 has 2 divisors: 1, 7

The answer is the sum of divisors of 21 only.

Example 2:

Input: nums = [21,21]

Output: 64

Example 3:

Input: nums = [1,2,3,4,5]

Output: 0

Constraints:

  • 1 <= nums.length <= 104
  • 1 <= nums[i] <= 105

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    sumFourDivisors(int[] nums)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • sumFourDivisors

      public int sumFourDivisors(int[] nums)