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Solution: Find Subsequence of Length K with the Largest Sum

Explore how to efficiently find a subsequence of length k with the largest sum from an integer array. Learn to use a min heap to track the top k elements, then sort by original indexes to maintain relative order. Understand the algorithm's time and space complexity, and gain hands-on experience implementing this approach.

Statement

You are given an integer array nums and an integer k. Your task is to find a subsequenceA subsequence is an array derived from another array by deleting some or no elements while preserving the order of the remaining elements. of nums of length k that has the largest possible sum.

Constraints:

  • 11 \leq nums.length 1000\leq 1000

  • ...