Maximum Product Subarray
Given an integer array nums, find a subarray that has the largest product, and return the product.
class Solution {
public int maxProduct(int[] nums) {
int max = nums[0], min = nums[0], ans = nums[0];
for (int i = 1; i < nums.length; i++) {
int temp = max; // store the max because before updating min your max will already be updated
max = Math.max(Math.max(max * nums[i], min * nums[i]), nums[i]);
min = Math.min(Math.min(temp * nums[i], min * nums[i]), nums[i]);
if (max > ans) {
ans = max;
}
}
return ans;
}
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