[LeetCode] Maximum Sum of 3 Non-Overlapping Subarrays 三個菲重疊子數組的最大和

阿新 • • 發佈：2018-02-19

turn array pin could plan swe ogr ppi etc

In a given array nums of positive integers, find three non-overlapping subarrays with maximum sum.

Each subarray will be of size k, and we want to maximize the sum of all 3*k entries.

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:

Input: [1,2,1,2,6,7,5,1], 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.

Note:

nums.length will be between 1 and 20000.
nums[i]

will be between 1 and 65535.
k will be between 1 and floor(nums.length / 3).

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