C Program to Print Inverted Right Triangle Alphabets Pattern

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

#include <stdio.h>

int main()
{
	int rows;

	printf("Enter Inverted Right Triangle of Alphabets Rows = ");
	scanf("%d", &rows);

	printf("Printing Inverted Right Triangle Alphabets Pattern\n");
	int alphabet = 65;

	for (int i = rows - 1; i >= 0; i--)
	{
		for (int j = 0; j <= i; j++)
		{
			printf("%c ", alphabet + j);
		}
		printf("\n");
	}
}
C Program to Print Inverted Right Triangle Alphabets Pattern

This C example prints the inverted right triangle pattern of alphabets using a while loop.

#include <stdio.h>

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

	printf("Enter Inverted Right Triangle of Alphabets Rows = ");
	scanf("%d", &rows);

	printf("Printing Inverted Right Triangle Alphabets Pattern\n");
	alphabet = 65;
	i = rows - 1;
	
	while (i >= 0)
	{
		j = 0;
		while (j <= i)
		{
			printf("%c ", alphabet + j);
			j++;
		}
		printf("\n");
		i--;
	}
}
Enter Inverted Right Triangle of Alphabets Rows = 13
Printing Inverted Right Triangle Alphabets Pattern
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 

In this C pattern example, we used the do while loop to display the right triangle of alphabets.

#include <stdio.h>

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

	printf("Enter Inverted Right Triangle of Alphabets Rows = ");
	scanf("%d", &rows);

	printf("Printing Inverted Right Triangle Alphabets Pattern\n");
	
	alphabet = 65;
	i = rows - 1;

	do
	{
		j = 0;
		do
		{
			printf("%c ", alphabet + j);

		} while (++j <= i);
		printf("\n");

	} while (--i >= 0);
}
Enter Inverted Right Triangle of Alphabets Rows = 15
Printing Inverted Right 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 

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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.