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重做53. 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.

只需要比较现在的数和加上数之后的和就可以。

public class Solution {    public int maxSubArray(int[] nums) {        int[] dp=new int[nums.length];        dp[0]=nums[0];        int max=dp[0];        for(int i=1;i<nums.length;i++)        {            dp[i]=Math.max(dp[i-1]+nums[i],nums[i]);            max=Math.max(dp[i],max);        }        return max;    }}

 

重做53. Maximum Subarray