C++ Program to Print Right Triangle of Mirrored Numbers Pattern

Write a C++ program to print right triangle of mirrored numbers pattern using for loop.

#include<iostream>
using namespace std;

int main()
{
	int rows;

	cout << "Enter Right Traingle Mirrored Numbers Rows = ";
	cin >> rows;

	cout << "The Right Traingle of Mirrored Numbers\n";

	for (int i = 1; i <= rows; i++)
	{
		for (int j = 1; j <= i; j++)
		{
			cout << j << " ";
		}
		for (int k = i - 1; k >= 1; k--)
		{
			cout << k << " ";
		}
		cout << "\n";
	}
}
C++ Program to Print Right Triangle of Mirrored Numbers Pattern

C++ program to print the right angled triangle of mirrored numbers pattern using a while loop.

#include<iostream>
using namespace std;

int main()
{
	int rows, i, j, k;

	cout << "Enter Right Traingle Mirrored Numbers Rows = ";
	cin >> rows;

	cout << "The Right Traingle of Mirrored Numbers\n";
	
	i = 1;
	while (i <= rows)
	{
		j = 1;
		while (j <= i)
		{
			cout << j << " ";
			j++;
		}

		k = i - 1;
		while (k >= 1)
		{
			cout << k << " ";
			k--;
		}
		cout << "\n";
		i++;
	}
}
Enter Right Traingle Mirrored Numbers Rows = 9
The Right Traingle of Mirrored Numbers
1 
1 2 1 
1 2 3 2 1 
1 2 3 4 3 2 1 
1 2 3 4 5 4 3 2 1 
1 2 3 4 5 6 5 4 3 2 1 
1 2 3 4 5 6 7 6 5 4 3 2 1 
1 2 3 4 5 6 7 8 7 6 5 4 3 2 1 
1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1 

This C++ example displays the right angled triangle pattern of mirrored numbers using the do while loop.

#include<iostream>
using namespace std;

void rtMirroredColumnNumbers(int rows)
{
	for (int i = 1; i <= rows; i++)
	{
		for (int j = 1; j <= i; j++)
		{
			cout << j << " ";
		}
		for (int k = i - 1; k >= 1; k--)
		{
			cout << k << " ";
		}
		cout << "\n";
	}
}

int main()
{
	int rows;

	cout << "Enter Right Traingle Mirrored Numbers Rows = ";
	cin >> rows;

	cout << "The Right Traingle of Mirrored Numbers\n";
	rtMirroredColumnNumbers(rows);
}
Enter Right Traingle Mirrored Numbers Rows = 13
The Right Traingle of Mirrored Numbers
1 
1 2 1 
1 2 3 2 1 
1 2 3 4 3 2 1 
1 2 3 4 5 4 3 2 1 
1 2 3 4 5 6 5 4 3 2 1 
1 2 3 4 5 6 7 6 5 4 3 2 1 
1 2 3 4 5 6 7 8 7 6 5 4 3 2 1 
1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1 
1 2 3 4 5 6 7 8 9 10 9 8 7 6 5 4 3 2 1 
1 2 3 4 5 6 7 8 9 10 11 10 9 8 7 6 5 4 3 2 1 
1 2 3 4 5 6 7 8 9 10 11 12 11 10 9 8 7 6 5 4 3 2 1 
1 2 3 4 5 6 7 8 9 10 11 12 13 12 11 10 9 8 7 6 5 4 3 2 1 

About Suresh

Suresh is the founder of TutorialGateway and a freelance software developer. He specialized in Designing and Developing Windows and Web applications. The experience he gained in Programming and BI integration, and reporting tools translates into this blog. You can find him on Facebook or Twitter.