C#解leetcode 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.

 

分析：这道题和152题有点类似。是求连续的子数组的和的最大值。是一道动态规划的题目。

代码如下：

public class Solution {
    public int MaxSubArray(int[] nums) {
        int max=int.MinValue,sum=int.MinValue;
        
        for(int i=0;i<nums.Length;i++)
        {
           if(sum>0)
               sum+=nums[i];
           else
               sum=nums[i];
           
           max=sum>max?sum:max;
        }
        
        return max;
    }
}