using System;

public class Program

{

    /* 

        Introductory Tasks

        ------------------

        These exercises are designed mainly to introduce you to the idea of loops/looping. Specifically, I want

        you to learn about the two different types of 'for loops' in C# - both how to use them, and the slight

        differences between the way they work.

        Other things you'll hopefully pick up include variables (google 'variable declaration c#') and

        also an awareness that there are different basic data types. Loops by definition work with collections

        of items/objects, so you'll also be learning what an array is. 

    */

    public static void Main()

    {

        var inputIntArr = new int[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

        _printNumbers(inputIntArr);

        _printOddOrEven(inputIntArr);

        var plusFiveVersion = _add5ToEachItem(inputIntArr);

        Console.WriteLine(_arraysHaveSameOrder(plusFiveVersion));

        var inputStr = "#CnIgnimmargorPoTemocleW";

        var reversed = _reverseInput(inputStr);

        Console.WriteLine(reversed);

    }

    private static string _reverseInput(string input) 

    {

        var ret = "";

        for(var i = input.Length -1; i >= 0; i--) 

        {

            ret += input[i];

        }

        return ret;

    }

    private static void _printNumbers(int[] arr) 

    {

        foreach(var i in arr)

        {

            Console.WriteLine(i);

        }

    }

    private static void _printOddOrEven(int[] input) 

    {

        foreach(var i in input) 

        {

            if (i % 2 == 0)

            {

                Console.WriteLine($"{i} is even");

            }

            else 

            {

                Console.WriteLine($"{i} is odd");

            }

        }

    }

    private static int[] _add5ToEachItem(int[] input) 

    {

        for(var i = 0; i <= input.Length -1; i++) 

        {

            input[i] += 5;

        }

        return input;

    }

    private static bool _arraysHaveSameOrder(int[] modified)

    {

        var expected = new int[] {6, 7, 8, 9, 10, 11, 12, 13, 14, 15};

        for (var i = 0; i <= expected.Length - 1; i++)

        {

            if (modified[i] != expected[i]) 

            {

                return false;

            }

        }

        return true;

    }

}