Watch 10 video solutions for Can Make Arithmetic Progression From Sequence, a easy level problem involving Array, Sorting. This walkthrough by Naresh Gupta has 2,017 views views. Want to try solving it yourself? Practice on FleetCode or read the detailed text solution.
A sequence of numbers is called an arithmetic progression if the difference between any two consecutive elements is the same.
Given an array of numbers arr, return true if the array can be rearranged to form an arithmetic progression. Otherwise, return false.
Example 1:
Input: arr = [3,5,1] Output: true Explanation: We can reorder the elements as [1,3,5] or [5,3,1] with differences 2 and -2 respectively, between each consecutive elements.
Example 2:
Input: arr = [1,2,4] Output: false Explanation: There is no way to reorder the elements to obtain an arithmetic progression.
Constraints:
2 <= arr.length <= 1000-106 <= arr[i] <= 106