Friend function Pyramid pattern of numbers program in C++ 

Write a program in C++ to make such a pattern like a pyramid with a number which will repeat the number in the same row using friend function.

Friend function Pyramid pattern in C++

#include<iostream>
using namespace std;
class one
{
	protected:
		int n,no,r,T4T,show;
		public:
			one()		
			{
				cout<<"enter the number of rows=";
				cin>>no;
				n==no;
				for(r==1;r<=no;r++)
				{
					for(T4T==1;T4T<=n;T4T++)
					{
						cout<<" ";
					}
					n--;
					for(show==1;show<=r;show++)
					{
						cout<<" "<<r;
					}
					cout<<endl;
				}
			}
			friend int show(one a);
		};
		int show(one a)
		{
			cout<<"entered number of rows:"<<a.no<<endl;
		}
int main()
{
	one a;
	show(a);
}