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Java-based LeetCode algorithm problem solutions, regularly updated
812\. Largest Triangle Area
Easy
Given an array of points on the **X-Y** plane `points` where points[i] = [xi, yi]
, return _the area of the largest triangle that can be formed by any three different points_. Answers within 10-5
of the actual answer will be accepted.
**Example 1:**
![](https://s3-lc-upload.s3.amazonaws.com/uploads/2018/04/04/1027.png)
**Input:** points = [[0,0],[0,1],[1,0],[0,2],[2,0]]
**Output:** 2.00000
**Explanation:** The five points are shown in the above figure. The red triangle is the largest.
**Example 2:**
**Input:** points = [[1,0],[0,0],[0,1]]
**Output:** 0.50000
**Constraints:**
* `3 <= points.length <= 50`
* -50 <= xi, yi <= 50
* All the given points are **unique**.