C++ Program to print Number Triangle Coding by Digitalise Data

 

C++ Program to print Number Triangle

Like alphabet triangle, we can write the C++ program to print the number triangle. The number triangle can be printed in different ways.

Let's see the C++ example to print number triangle.

1. #include <iostream.h>
2. #include <conio.h>
3. void main()  
4. {  
5. int i,j,k,l,n;    
6. cout<<"Enter the Range=";    
7. cin>>n;    
8. for(i=1;i<=n;i++)    
9. {    
10. for(j=1;j<=n-i;j++)    
11. {    
12. cout<<" ";    
13. }    
14. for(k=1;k<=i;k++)    
15. {    
16. cout<<k;    
17. }    
18. for(l=i-1;l>=1;l--)    
19. {    
20. cout<<l;    
21. }    
22. cout<<"\n";    
23. }    
24. getch();  
25. }  

Output:

 
Enter the Range=5
     1
    121
   12321
  1234321
 123454321  

Enter the Range=6
      1
     121
    2321
   1234321 
  123454321
 12345654321