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Solution: K Maximum Sum Combinations From Two Arrays

Explore how to identify the top k maximum sum combinations formed by adding elements from two arrays. Understand the use of sorting, max heaps, and visited sets to efficiently compute and return the k largest sums without generating all combinations. This lesson helps improve problem-solving skills for coding interviews by applying the top k elements pattern, with a focus on time and space complexity.

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 ...