Linear search 6 #54

using System;

class Program
{
    static void Main()
    {
        int[] arr = { 3, 6, 9, 12, 15, 18, 21, 24 }; int target = 6;
        int idx = -1;
        for (int j = 0; j < arr.Length; j++) if (arr[j] == target) { idx = j; break; }
        Console.WriteLine(idx);
    }
}