976. Largest Perimeter Triangle
Easy

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 <= 104
    1 <= nums[i] <= 106