Sum of array elements

Easy 20 pts New · no attempts yet csharp

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

Static hints

Use foreach or a for loop to accumulate sum.

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Official 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);
    }
}

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Explanation

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

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Sum of array elements

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