- Difficulty: Easy
- Tags: LeetCode, Easy, Array, Hash Table, Sorting, Heap (Priority Queue), leetcode-2099, O(n) on average, O(n), Quick Select
Problem
You are given an integer array nums
and an integer k
. You want to find a subsequence of nums
of length k
that has the largest sum.
Return any such subsequence as an integer array of length k
.
A subsequence is an array that can be derived from another array by deleting some or no elements without changing the order of the remaining elements.
Example 1:
Input: nums = [2,1,3,3], k = 2 Output: [3,3] Explanation: The subsequence has the largest sum of 3 + 3 = 6.
Example 2:
Input: nums = [-1,-2,3,4], k = 3 Output: [-1,3,4] Explanation: The subsequence has the largest sum of -1 + 3 + 4 = 6.
Example 3:
Input: nums = [3,4,3,3], k = 2 Output: [3,4] Explanation: The subsequence has the largest sum of 3 + 4 = 7. Another possible subsequence is [4, 3].
Constraints:
1 <= nums.length <= 1000
-105 <= nums[i] <= 105
1 <= k <= nums.length