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Grokking the Coding Interview Patterns in Python

Solution: Find Subsequence of Length K with the Largest Sum

Understand how to use a min heap to efficiently find a subsequence of length k with the largest sum in an array. Learn to maintain the original order of elements with heap operations and sorting, while optimizing time and space complexity.

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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:

  • 1≤1 \leq nums.length ≤1000\leq 1000

  • ...