原题:
Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum.
Example:
Input: [-2,1,-3,4,-1,2,1,-5,4],
Output: 6
Explanation: [4,-1,2,1] has the largest sum = 6.
Follow up:
If you have figured out the O(n) solution, try coding another solution using the divide and conquer approach, which is more subtle.
翻译:
给定一个整数数组num,查找具有最大和的连续子数组(至少包含一个数字),并返回其和。
例:
Input: [-2,1,-3,4,-1,2,1,-5,4],
Output: 6
Explanation: [4,-1,2,1] has the largest sum = 6.
更进一步:
如果您已经找到了O(N)解决方案,请尝试使用分而治之的方法对另一个解决方案进行编码,这更为巧妙。
C程序 V1.0
int maxSubArray(int* nums, int numsSize){
if(numsSize==0)return 0;
int max = nums[0];
int sum = 0;
for(int i = 0; i<numsSize; ++i)
{
for(int j=i; j<numsSize; ++j)
{
sum=sum+nums[j];
if(sum>max)max = sum;
}
sum = 0;
}
return max;
}
总结:
- 算法不够好,要找到一个复杂度底的算法