【leetcode】152. 乘积最大子数组

#define max(a,b) ((a)>(b))?(a):(b)
#define min(a,b) ((a)<(b))?(a):(b)
int maxProduct(int* nums, int numsSize){
    int i, maxVal=nums[0], res=nums[0], minVal=nums[0], pre;
    for (i=1; i<numsSize; i++)
    {
        pre = maxVal;
        maxVal=max( nums[i],max(nums[i]*pre,nums[i]*minVal) );
        minVal=min( nums[i], min(nums[i]*pre,nums[i]*minVal) );
        res=max(res,maxVal);
    }
    return res;
}