Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum.A subarray is a contiguous part of an array. 英文版地址 leetcode.com/problems/m
C++ classSolution{public:intmaxSubArray(vector<int>& nums){returnhelper(nums,0, nums.size() -1); }private:inthelper(vector<int>& nums,intstart,intend){if(start > end)return0;if(start == end)returnnums[start];intmid = start + (end - start) /2;intleft =helper(nums, start, mid);...
m =max(current, m)returnmif__name__ =="__main__":assertSolution().maxSubArray([-2,1, -3,4, -1,2,1, -5,4]) ==6
## LeetCode 53 最大子数列和 Maximum Subarray class Solution(): def maxSubArray(self, nums): l = len(nums) dp = [0] * l ## 初始化数组全部为0 ## 套路第三步,初始特殊值为 nums 第一个元素 dp[0] = nums[0] #res_max = dp[0] ## 最终结果也初始化为 nums 第一个元素 for i in...
Leetcode No.53 Maximum Subarray(c++实现) 1. 题目 1.1 英文题目 Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum. 1.2 中文题目 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...
leetcode 53. Maximum Subarray 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:6 Explanation:[4,-1,2,1]has the largest sum =6....
182:21 Leetcode力扣 301+题视频讲解合集|手画图解版+代码【持续更新ing】 2.4万32 视频爱学习的饲养员 暴力法 Python3版本 Java版本 d 动态规划 Dynamic Programming Python3版本 Java版本 分治法 Divide and Coqnuer Python3版本 Java版本 分享到:
解法一：暴力解法 思路：使用两层循环，时间复杂度是 O(n^2)。Python 代码：这种做法，虽然可以解决短的数列问题，但在提交时会超时。解法二：贪心+滑窗 思路：可以打败90%左右的用户，不过最经典的是分治法。最大子数列题，也是分治算法的经典应用。解法三：动态规划 第一步，定义临时数组，保存每个...
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(vector<int> &a, int l, int r) { if (l == r) { return (Status) {a[l], a[l], a[l], a[l]}; } int m = (l + r) >> 1; Status lSub = get(a, l, m); Status rSub = get(a, m + 1, r); return pushUp(lSub, rSub); } int maxSubArray(vector<int>& nums...