Easy csharp

Array sum (10 elements) #36

Problem

Sum [3, 6, 9, 12, 15, 18, 21, 24, 27, 30].

Hints

foreach sum

Your practice code

Ready — edit the code above and click Run.

Solution

using System;

class Program
{
    static void Main()
    {
        int[] arr = { 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 };
        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

O(n) scan.

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