Number Pattern in C# - 18

Question: Program to print the following pattern.

9
0 1
2 3 4
5 6 7 8
9 0 1 2 3


Code Snippet:

1. using System;  
2. public class pattern  
3. {  
4.     public static void Main()  
5.     {  
6.         int row, col, i, n, x=0;  
7.   
8.         Console.Write("Enter the no. of row: ");  
9.         n=Convert.ToInt32(Console.ReadLine());  
10.         Console.WriteLine("9");  
11.   
12.         for(row=2; row<=n; row++)  
13.         {  
14.             for(col = 1; col<=row; col++,x++)  
15.             {  
16.                 if(x<10)  
17.                 Console.Write("{0} ",x);  
18.   
19.                 else  
20.                 {  
21.                     for(i=0; i<=3; i++)  
22.                     Console.Write("{0} ",i);  
23.                     break;  
24.                 }  
25.                       
26.             }     
27.             Console.WriteLine();  
28.         }  
29.             Console.ReadLine();  
30.     }  
31. }  

Fig: Screenshots of Output