LeetCode题解：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.

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More practice:

If you have figured out the O(n) solution, try coding another solution using the divide and conquer approach, which is more subtle.

题意：找出数组中和最大的子数组

解题思路：DP

代码：

public class Solution {
public int maxSubArray(int[] nums) {
int maxSoFar=nums[0];
int maxEndingHere=nums[0];

for (int i = 1; i < nums.length; ++i){
maxEndingHere = Math.max(maxEndingHere + nums[i], nums[i]);
maxSoFar = Math.max(maxSoFar, maxEndingHere);
}

return maxSoFar;
}
}