using System;

​

​

public class RecursiveNestedLoops

{

    static int numberOfLoops;

    static int numberOfIterations;

    static int[] loops;

    public void Main()

    {

        Console.Write("n = ");

        numberOfLoops = int.Parse(Console.ReadLine());

        numberOfIterations = numberOfLoops;

        loops = new int[numberOfLoops];

        NestedLoops(0);

    }

    static void NestedLoops(int currentLoop)

    {

        if (currentLoop == numberOfLoops)

        {

            PrintLoops();

            return;

        }

        for (int counter=1; counter<=numberOfIterations; counter++)

        {

            loops[currentLoop] = counter;

            NestedLoops(currentLoop + 1);

        }

    }

    static void PrintLoops()

    {

        for (int i = 0; i < numberOfLoops; i++)

        {

            Console.Write("{0} ", loops[i]);

        }

        Console.WriteLine();

    }

}

​

//1. Write a program to simulate n nested loops from 1 to n.