IsLinear

Easy

Given an array of 2D points, returns whether they form a line.

Parameter(s):

  • arr: array of 2D points

Returns:

  • boolean: whether they form a line

Constraints:

  • arr ≠ null
  • 1 ≤ arr.length ≤ 1000
  • -2147483647 ≤ arr[i][0] ≤ 2147483647
  • -2147483647 ≤ arr[i][1] ≤ 2147483647

Example 1:

Input:

[[0,0],[1,1]]

Output:

true

Example 2:

Input:

[[0,0],[1,1],[1,2]]

Output:

false