Easy csharp

Find maximum in array

Problem

Find and print the maximum value in { 3, 7, 2, 9, 1 }.

Hints

Initialize max with arr[0].

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 max = arr[0];
        foreach (var x in arr)
            if (x > max) max = x;
        Console.WriteLine(max);
    }
}

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

Explanation

Track running max—O(n) time, O(1) space. Classic array interview question.

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