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Solution: K Maximum Sum Combinations From Two Arrays

Explore how to identify the top K maximum sum combinations from two integer arrays efficiently. Learn to use sorting and a max heap to dynamically generate sums, avoid duplicates with a visited set, and return results in descending order. Understand the time and space complexities involved in this process.

Statement

You are given two integer arrays, arr1 and arr2, each of size nn. You are also given an integer k. Your task is to return the k largest sum combinations that can be formed by adding one element from arr1 and one element from arr2, for all possible pairs (arr1[i] + arr2[j]), where 0i,j<n0 ≤ i, j < n.

Note: The output should be sorted in non-increasing order.

Constraints:

  • 1n10001 ≤ n ≤ 1000 ...