Write a c++ program to print a number triangle
#include <iostream>
using namespace std;
int main()
{
int i,j,k,l,n;
cout<<"Enter 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
