Package g1501_1600.s1502_can_make_arithmetic_progression_from_sequence

Class Solution

  • public class Solution
extends Object
    1502 - Can Make Arithmetic Progression From Sequence.

    Easy

    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

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail

      • canMakeArithmeticProgression

        public boolean canMakeArithmeticProgression​(int[] arr)