C++ Program to print Number Triangle

This article shows that C++ Program to print Number Triangle. Like C++ program of alphabet triangle, we can write the C++ program to print the number triangle. The number triangle can be printed in different ways.

C++ Program to generate Fibonacci Triangle.

Let’s see the C++ program to print number triangle.

#include <iostream>  
using namespace std;  
int main()  
{  
int i,j,k,l,n;    
cout<<"Enter the Range=";    
cin>>n;    
for(i=1;i<=n;i++)    
{    
for(j=1;j<=n-i;j++)    
{    
cout<<" ";    
}    
for(k=1;k<=i;k++)    
{    
cout<<k;    
}    
for(l=i-1;l>=1;l--)    
{    
cout<<l;    
}    
cout<<"\n";    
}    
return 0;  
}  

Output:

Enter the Range=4     
        1     
      121    
    12321
  1234321

Enter the Range=5
         1   
       121   
     12321 
  1234321  
123454321  
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Conclusion:

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