不管怎么试都是要遍历一次然后用 DP 来比较最大值,怎样都是 o(n)的复杂度吧?题目的意思用分治能优化吗?求解
Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum.
Example:
Input: [-2,1,-3,4,-1,2,1,-5,4], Output: 6 Explanation: [4,-1,2,1] has the largest sum = 6.
Follow up:
If you have figured out the O(n) solution, try coding another solution using the divide and conquer approach, which is more subtle.
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GenialX2 2019-03-10 09:36:19 +08:00
小旭讲解 LeetCode 53. Maximum Subarray 分治策略
https://www.bilibili.com/video/av38950374 |