LeetCode in Kotlin

1037. Valid Boomerang

Easy

Given an array points where points[i] = [xi, yi] represents a point on the X-Y plane, return true if these points are a boomerang.

A boomerang is a set of three points that are all distinct and not in a straight line.

Example 1:

Input: points = [[1,1],[2,3],[3,2]]

Output: true

Example 2:

Input: points = [[1,1],[2,2],[3,3]]

Output: false

Constraints:

• points.length == 3
• points[i].length == 2
• 0 <= xi, yi <= 100

Solution

class Solution {
    fun isBoomerang(points: Array<IntArray>): Boolean {
        return (
            (points[1][1] - points[0][1]) * (points[2][0] - points[0][0])
                != (points[2][1] - points[0][1]) * (points[1][0] - points[0][0])
            )
    }
}

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