Python 代码: ## 用数组本身,来保存结果 class Solution(): ## 动态规划 def maxSubArray(self, nums): for i in range(1, len(nums)): if nums[i-1] > 0: ## 如果是正数,才会加到当前的位置 nums[i] += nums[i-1] return max(nums) ## 如果只有一个值,那么fo
python版本的解答 要找到连续最大的可用si表示累加到当前的最小值,sj表示当前的累加值 class Solution(object): def maxSubArray(self, nums): n = len(nums) si = 0 sj = 0 minSi = 0 ans = float("-inf") for i in range(0, n): sj += nums[i] if si < minSi: minSi = si if ans...
class Solution: def maxSubArray(self, nums: List[int]) -> int: # - dp[i] means max sum of nums[a]...nums[i], 0<=a<=i dp = [0] * len(nums) # - init dp[0] as nums[0] dp[0] = nums[0] # - update dp[] for i in range(1, len(nums)): dp[i] = max(dp[i-...
https://leetcode-cn.com/problems/maximum-subarray/ 给定一个整数数组 nums ,找到一个具有最大和的连续子数组(子数组最少包含一个元素),返回其最大和。 示例: 输入: [-2,1,-3,4,-1,2,1,-5,4], 输出: 6 解释: 连续子数组 [4,-1,2,1] 的和最大,为 6。 解题思路 DP,设定dp[i]是以元素...
[Leetcode][python]Maximum Subarray/最大子序和 题目大意 由N 个整数元素组成的一维数组 (A[0], A[1],…,A[n-1], A[n]),这个数组有很多连续子数组,那么其中数组之和的最大值是什么呢? 子数组必须是连续的。 不需要返回子数组的具体位置。
53. Maximum Subarray@python Given an integer arraynums, 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:6Explanation: [4,-1,2,1] has the largest sum = 6....
问题描述: Given an array consisting of n integers, find the contiguous subarray of given lengthk that has the maximum average value. And you need to output the maximum average value. 示例: Input: [1,12,-5,-... 用Python刷LeetCode【53. 最大子序和(Maximum Subarray)】 ...
本文将介绍计算机算法中的经典问题——最大子数组问题(maximum subarray problem)。所谓的最大子数组问题,指的是:给定一个数组A,寻找A的和最大的非空连续...
053.maximum-subarray Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [-2,1,-3,4,-1,2,1,-5,4], the contiguous subarray [4,-1,2,1] has the largest sum = 6....
Explanation: The result cannot be 2, because [-2,-1] is not a subarray. 问题本质: 本质:动态规划问题。 局部最优,全局最优。 product-乘法问题,存在的情况是 负数或者正数,或者从当前数开始新的连续元素相乘 可能发生的情况: 在某个节点,继续之前的增大/减小,从此节点转折。