Maximum Subarray 连续子数组最大和
浏览数：59 /
时间：2015年06月08日
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.
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.
此题为经典的求连续子数组最大和问题，除了暴力的解法，想办法用O(n)时间来做。
直接贴代码：
1 class Solution { 2 public: 3 int maxSubArray(int A[], int n) { 4 if(A == NULL || n < 1) 5 return -1; 6 7 int max = A[0]; 8 int temp = 0; 9 10 for(int i = 0 ; i < n ; i++){ 11 if(temp < 0) 12 temp = A[i]; 13 else 14 temp += A[i]; 15 16 if(temp > max) 17 max = temp; 18 } 19 20 return max; 21 22 } 23 };
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