152. Maximum Product Subarray
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Find the contiguous subarray within an array (containing at least one number) which has the largest product.
For example, given the array [2,3,-2,4]
,
the contiguous subarray [2,3]
has the largest product = 6
.
public class Solution { public int maxProduct(int[] nums) { if(nums==null || nums.length==0) return 0; int global = nums[0]; int max_local = nums[0]; int min_local = nums[0]; for(int i=1;i<nums.length;i++) { int max_copy = max_local; max_local = Math.max(Math.max(nums[i],max_local*nums[i]),min_local*nums[i]); min_local = Math.min(Math.min(nums[i],max_copy*nums[i]),min_local*nums[i]);//维护一个最小值。负负得正 global = Math.max(max_local,global); } return global; }}
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- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
- 152. Maximum Product Subarray
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