Package g2301_2400.s2342_max_sum_of_a_pair_with_equal_sum_of_digits

Class Solution

java.lang.Object
g2301_2400.s2342_max_sum_of_a_pair_with_equal_sum_of_digits.Solution
public class Solution extends java.lang.Object
2342 - Max Sum of a Pair With Equal Sum of Digits.

Medium

You are given a 0-indexed array nums consisting of positive integers. You can choose two indices i and j, such that i != j, and the sum of digits of the number nums[i] is equal to that of nums[j].

Return the maximum value of nums[i] + nums[j] that you can obtain over all possible indices i and j that satisfy the conditions.

Example 1:

Input: nums = [18,43,36,13,7]

Output: 54

Explanation: The pairs (i, j) that satisfy the conditions are:

  • (0, 2), both numbers have a sum of digits equal to 9, and their sum is 18 + 36 = 54.

  • (1, 4), both numbers have a sum of digits equal to 7, and their sum is 43 + 7 = 50.

So the maximum sum that we can obtain is 54.

Example 2:

Input: nums = [10,12,19,14]

Output: -1

Explanation: There are no two numbers that satisfy the conditions, so we return -1.

Constraints:

  • 1 <= nums.length <= 105
  • 1 <= nums[i] <= 109

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    maximumSum(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

    • maximumSum

      public int maximumSum(int[] nums)