How to check if Two Arrays have Same Elements (Regardless of Order) in C# - Step by Step Examples

How to check if Two Arrays have Same Elements (Regardless of Order) in C# ?

Answer

To check if two arrays have the same elements regardless of order in C#, you can sort both arrays and then compare them using LINQ or a custom comparison function.

✐ Examples

1 Arrays with Same Elements (Order Ignored) - Using LINQ

In this example,

We create two arrays named arr1 and arr2 with the same elements but in different order.
We sort both arrays using LINQ's OrderBy method.
We then use LINQ's SequenceEqual method to check if the sorted arrays are equal.
Finally, we print the result to the console.

C# Program

using System;
using System.Linq;

class Program
{
    static void Main()
    {
        int[] arr1 = { 1, 2, 3 };
        int[] arr2 = { 3, 1, 2 };

        var sortedArr1 = arr1.OrderBy(x => x);
        var sortedArr2 = arr2.OrderBy(x => x);

        bool isEqual = sortedArr1.SequenceEqual(sortedArr2);
        Console.WriteLine(isEqual);
    }
}

Output

True

2 Arrays with Different Elements (Order Ignored) - Using Custom Function

In this example,

We create two arrays named arr3 and arr4 with different elements.
We sort both arrays using a custom function SortArray.
We then compare the sorted arrays using a custom function ArraysEqual.
Finally, we print the result to the console.

C# Program

using System;

class Program
{
    static void Main()
    {
        int[] arr3 = { 1, 2, 3 };
        int[] arr4 = { 4, 5, 6 };

        SortArray(arr3);
        SortArray(arr4);

        bool isEqual = ArraysEqual(arr3, arr4);
        Console.WriteLine(isEqual);
    }

    static void SortArray(int[] arr)
    {
        Array.Sort(arr);
    }

    static bool ArraysEqual(int[] arr1, int[] arr2)
    {
        return arr1.Length == arr2.Length &&
            arr1.Zip(arr2, (a, b) => a == b).All(x => x);
    }
}

Output

False

Summary

In this tutorial, we learned How to check if Two Arrays have Same Elements (Regardless of Order) in C# language with well detailed examples.

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How to check if Two Arrays have Same Elements (Regardless of Order) in C# - Step by Step Examples

How to check if Two Arrays have Same Elements (Regardless of Order) in C# ?

Answer

✐ Examples

1 Arrays with Same Elements (Order Ignored) - Using LINQ

C# Program

Output

2 Arrays with Different Elements (Order Ignored) - Using Custom Function

C# Program

Output

Summary

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