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C# Sharp Programming Exercises

C# Sharp Exercises: Print the natural numbers from n to 1

C# Sharp Recursion: Exercise-2 with Solution

Write a program in C# Sharp to print numbers from n to 1 using recursion.

Sample Solution:-

C# Sharp Code:

using System;

class RecExercise1
{
    static int printNatural(int ctr,int stval)
    {
	if (ctr < 1)
	{
	    return stval;
	}

	Console.Write(" {0} ",ctr);
		ctr--;
	return printNatural(ctr,stval);
    }
    
    static void Main()
    {
	Console.Write("\n\n Recursion : Print the natural numbers from n to 1 :\n");
	Console.Write("--------------------------------------------------------\n");
	Console.Write(" How many numbers to print : ");
	int ctr= Convert.ToInt32(Console.ReadLine());
	// Call recursive method with two parameters.	
	printNatural(ctr,1);
	Console.Write("\n\n");
    }
}

Sample Output:

Recursion : Print the natural numbers from n to 1 :                                                          
--------------------------------------------------------                                                      
 How many numbers to print : 20                                                                               
 20  19  18  17  16  15  14  13  12  11  10  9  8  7  6  5  4  3  2  1 

C# Sharp Code Editor:

using System;

class RecExercise1
{
    static int printNatural(int ctr,int stval)
    {
	if (ctr < 1)
	{
	    return stval;
	}

	Console.Write(" {0} ",ctr);
		ctr--;
	return printNatural(ctr,stval);
    }
    
    static void Main()
    {
	Console.Write("\n\n Recursion : Print the natural numbers from n to 1 :\n");
	Console.Write("--------------------------------------------------------\n");
	Console.Write(" How many numbers to print : ");
	int ctr= Convert.ToInt32(Console.ReadLine());
	// Call recursive method with two parameters.	
	printNatural(ctr,1);
	Console.Write("\n\n");
    }
}

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