动态规划（3）

class Solution:
    def maxSubArray(self, nums: List[int]) -> int:

        maxnum = nums[0]
        for i in range(1,len(nums)):
            if nums[i - 1] > 0:
                nums[i] += nums[i - 1]
            maxnum = max(maxnum,nums[i])
        return maxnum

class Solution:
    def maxSubArray(self, nums: List[int]) -> int:
        n = len(nums)
        maxSum = nums[0]
        minSum = sum = 0
        for i in range(n):
            sum += nums[i]
            maxSum = max(maxSum, sum - minSum)
            minSum = min(minSum, sum)
            
        return maxSum

作者：fe-lucifer
链接：https://leetcode-cn.com/problems/lian-xu-zi-shu-zu-de-zui-da-he-lcof/solution/wu-chong-jie-fa-san-chong-yu-yan-java-javascript-p/
来源：力扣（LeetCode）
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