C++ Program to Print Inverted Triangle Alphabets Pattern

Write a C++ program to print inverted triangle alphabets pattern using for loop.

#include<iostream>
using namespace std;

int main()
{
	int rows;

	cout << "Enter Inverted Triangle of Alphabets Rows = ";
	cin >> rows;

	cout << "Inverted Triangle Alphabets Pattern\n";
	int alphabet = 65;

	for (int i = 0; i <= rows - 1; i++)
	{
		for (int j = 0; j <= i; j++)
		{
			cout << " ";
		}
		for (int k = 0; k <= rows - i - 1; k++)
		{
			cout << char(alphabet + k) << " ";
		}
		cout << "\n";
	}
}
C++ Program to Print Inverted Triangle Alphabets Pattern

C++ program to print the inverted triangle alphabets pattern using a while loop.

#include<iostream>
using namespace std;

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

	cout << "Enter Inverted Triangle of Alphabets Rows = ";
	cin >> rows;

	cout << "Inverted Triangle Alphabets Pattern\n";
	 alphabet = 65;

	i = 0;

	while (i <= rows - 1)
	{

		j = 0;
		while (j <= i)
		{
			cout << " ";
			j++;
		}

		k = 0;
		while (k <= rows - i - 1)
		{
			cout << char(alphabet + k) << " ";
			k++;
		}
		cout << "\n";
		i++;
	}
}
Enter Inverted Triangle of Alphabets Rows = 15
Inverted Triangle Alphabets Pattern
 A B C D E F G H I J K L M N O 
  A B C D E F G H I J K L M N 
   A B C D E F G H I J K L M 
    A B C D E F G H I J K L 
     A B C D E F G H I J K 
      A B C D E F G H I J 
       A B C D E F G H I 
        A B C D E F G H 
         A B C D E F G 
          A B C D E F 
           A B C D E 
            A B C D 
             A B C 
              A B 
               A 

This C++ example displays the inverted triangle pattern of alphabets using the do while loop.

#include<iostream>
using namespace std;

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

	cout << "Enter Inverted Triangle of Alphabets Rows = ";
	cin >> rows;

	cout << "Inverted Triangle Alphabets Pattern\n";
	alphabet = 65;

	i = 0;

	do
	{
		j = 0;
		do
		{
			cout << " ";

		} while (j++ <= i);

		k = 0;
		do
		{
			cout << char(alphabet + k) << " ";

		} while (++k <= rows - i - 1);

		cout << "\n";

	} while (++i <= rows - 1);
}
Enter Inverted Triangle of Alphabets Rows = 17
Inverted Triangle Alphabets Pattern
  A B C D E F G H I J K L M N O P Q 
   A B C D E F G H I J K L M N O P 
    A B C D E F G H I J K L M N O 
     A B C D E F G H I J K L M N 
      A B C D E F G H I J K L M 
       A B C D E F G H I J K L 
        A B C D E F G H I J K 
         A B C D E F G H I J 
          A B C D E F G H I 
           A B C D E F G H 
            A B C D E F G 
             A B C D E F 
              A B C D E 
               A B C D 
                A B C 
                 A B 
                  A 

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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.