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.
都是负数的话返回最大的负数。
class Solution {
public:
int maxSubArray(int A[], int n) {
// Start typing your C/C++ solution below
// DO NOT write int main() function
if(n==0) return 0;
int tempSum = A[0];
int maxSum = tempSum;
for(int i=1;i<n;i++)
{
if(tempSum<=0)
{
tempSum = A[i];
}
else
{
tempSum += A[i];
}
maxSum = max(tempSum,maxSum);
}
return maxSum;
}
};
本文介绍了一种寻找含至少一个数的连续子数组并求其最大和的算法。例如,在数组[-2,1,-3,4,-1,2,1,-5,4]中,连续子数组[4,-1,2,1]的最大和为6。若数组全为负数,则返回最大负数值。
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