Question

How to check if a sequence of numbers is an Arithmetic progression (consecutive differences are the same) in C#

Answer 1

using System;

class SequenceIsArithmeticProgression_CSharp
{
    static bool IsArithmeticProgression(int[] arr) {
        int size = arr.Length;
        if (size == 1) {
            return true;
        }

        Array.Sort(arr);

        int difference = arr[1] - arr[0];
        for (int i = 2; i < size; i++) {
            if (arr[i] - arr[i - 1] != difference) {
                return false;
            }
        }

        return true;
    }

    static void Main()
    {
        int[] arr = { 10, 20, 15, 5, 25, 35, 30 };

        Console.WriteLine(IsArithmeticProgression(arr) ? "Yes" : "No");
    }
}


/*
run:

Yes

*/

 

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