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2026-06-08 11:38:09 +08:00

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TODO 0053. Maximum Subarray   medium

Given an integer array nums, find the subarray with the largest sum, and return its sum.

Example 1:

Input: nums = [-2,1,-3,4,-1,2,1,-5,4]
Output: 6
Explanation: The subarray [4,-1,2,1] has the largest sum 6.

Example 2:

Input: nums = [1]
Output: 1
Explanation: The subarray [1] has the largest sum 1.

Example 3:

Input: nums = [5,4,-1,7,8]
Output: 23
Explanation: The subarray [5,4,-1,7,8] has the largest sum 23.

Constraints:

  • 1 <= nums.length <= 10^{5}
  • -10^{4} <= nums[i] <= 10^{4}

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.

TODO Approach

Write your approach here.

TODO Python

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

TODO C++

class Solution {
public:
    int maxSubArray(vector<int>& nums) {
        
    }
};