Easy csharp

Sum of array elements

Problem

Given int[] arr = { 3, 7, 2, 9, 1 }, print the sum.

Hints

Use foreach or a for loop to accumulate sum.

Your practice code

Ready — edit the code above and click Run.

Solution

using System;

class Program
{
    static void Main()
    {
        int[] arr = { 3, 7, 2, 9, 1 };
        int sum = 0;
        foreach (var x in arr) sum += x;
        Console.WriteLine(sum);
    }
}

Try solving on your own first, then reveal the official answer.

Explanation

foreach is idiomatic in C#. LINQ alternative: arr.Sum().

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