Given an integer array nums, return the largest perimeter of a triangle with a non-zero area, formed from three of these lengths. If it is impossible to form any triangle of a non-zero area, return 0.
Example 1:
Input: nums = [2,1,2] Output: 5
Example 2:
Input: nums = [1,2,1] Output: 0
Constraints:
3 <= nums.length <= 1041 <= nums[i] <= 106
[Greedy] [Array] [Math] [Sorting]
- Largest Triangle Area (Easy)