标签:
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
.
一、问题描述:输入一个整数数组,求数组中连续的子数组使其和最大。
二、解题方法:
//从左至右扫描数组,如果前面一段连续子数组的和小于0,则置为0,重新从下个元素开始累加 int maxSubArray(vector<int>& nums) { int ans=nums[0];//注意:ans应该初始化为数组第一个元素 int curSum=0; int n=nums.size(); for(int i=0;i<n;i++) { curSum+=nums[i]; if(curSum>ans) ans=curSum; if(curSum<0) curSum=0; } return ans; }
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原文地址:http://blog.csdn.net/geekmanong/article/details/50857679