0976. Largest Perimeter Triangle

https://leetcode.com/problems/largest-perimeter-triangle

Description

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

Example 3:

**Input:** nums = [3,2,3,4]
**Output:** 10

Example 4:

**Input:** nums = [3,6,2,3]
**Output:** 8

Constraints:

• 3 <= nums.length <= 104

• 1 <= nums[i] <= 106

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