Package g0601_0700.s0689_maximum_sum_of_3_non_overlapping_subarrays

Class Solution

java.lang.Object
g0601_0700.s0689_maximum_sum_of_3_non_overlapping_subarrays.Solution
public class Solution extends java.lang.Object
689 - Maximum Sum of 3 Non-Overlapping Subarrays.

Hard

Given an integer array nums and an integer k, find three non-overlapping subarrays of length k with maximum sum and return them.

Return the result as a list of indices representing the starting position of each interval ( 0-indexed ). If there are multiple answers, return the lexicographically smallest one.

Example 1:

Input: nums = [1,2,1,2,6,7,5,1], k = 2

Output: [0,3,5]

Explanation:

Subarrays [1, 2], [2, 6], [7, 5] correspond to the starting indices [0, 3, 5].

We could have also taken [2, 1], but an answer of [1, 3, 5] would be lexicographically larger.

Example 2:

Input: nums = [1,2,1,2,1,2,1,2,1], k = 2

Output: [0,2,4]

Constraints:

  • 1 <= nums.length <= 2 * 104
  • 1 <= nums[i] < 216
  • 1 <= k <= floor(nums.length / 3)

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int[]
    maxSumOfThreeSubarrays(int[] nums, int k)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • maxSumOfThreeSubarrays

      public int[] maxSumOfThreeSubarrays(int[] nums, int k)