C++ Program to Print Right Triangle Alphabets Pattern

Write a C++ program to print the right angled triangle of alphabets pattern using for loop.

#include<iostream>
using namespace std;

int main()
{
	int i, j, alphabet, rows;
     
    cout << "Enter Right Triangle Alphabets Pattern Row = ";
    cin >> rows;

    cout << "Right Angled Triangle Alphabets Pattern\n"; 

    alphabet = 65;

    for(i = 0; i < rows; i++)
    {
    	for(j = 0; j <= i; j++)
		{
            cout << char(alphabet + j) << " ";
        }
        cout << "\n";
    }		
 	return 0;
}

This C++ example prints the alphabets in the right angled triangle pattern using a while loop.

#include<iostream>
using namespace std;

int main()
{
	int i = 0, j, alphabet, rows;
     
    cout << "Enter Right Triangle Alphabets Pattern Rows = ";
    cin >> rows;

    cout << "Right Angled Triangle Alphabets Pattern\n"; 

    alphabet = 65;

    while(i < rows)
    {
        j = 0;
    	while( j <= i)
		{
            cout << char(alphabet + j) << " ";
            j++;
        }
        cout << "\n";
        i++;
    }		
 	return 0;
}

Enter Right Triangle Alphabets Pattern Rows = 16
Right Angled Triangle Alphabets Pattern
A 
A B 
A B C 
A B C D 
A B C D E 
A B C D E F 
A B C D E F G 
A B C D E F G H 
A B C D E F G H I 
A B C D E F G H I J 
A B C D E F G H I J K 
A B C D E F G H I J K L 
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 M N 
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 O P