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53. Maximum Subarray

时间:2020-02-17 19:59:09      阅读:80      评论:0      收藏:0      [点我收藏+]

标签:tput   turn   for   max   number   imu   ges   ide   other   

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.

 

 1 class Solution {
 2     public int maxSubArray(int[] nums) {
 3         int n = nums.length;
 4         int now = nums[0];
 5         int ans = nums[0];
 6         for (int i = 1; i < n; ++i) {
 7             
 8             if (now + nums[i] < nums[i]) {
 9                 
10                 now = nums[i];
11             } else {
12                 now = now + nums[i];
13             }
14             
15             ans = Math.max(ans, now);
16             
17         }
18         return ans;
19     }
20 }

 

53. Maximum Subarray

标签:tput   turn   for   max   number   imu   ges   ide   other   

原文地址:https://www.cnblogs.com/hyxsolitude/p/12323034.html

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