C Program to Print Triangle Pattern of Alphabets

In this tutorial, i am going to show you how to print triangle pattern of alphabets in c program with the help of for loop and while loop.

All C Programs to Print Triangle Pattern of Alphabets

  • C Program to Print Triangle Pattern of Alphabets using For Loop
  • C Program to Print Triangle Pattern of Alphabets using While Loop

C Program to Print Triangle Pattern of Alphabets using For Loop

#include <stdio.h>
int main()
{
    int i, j, k, rows, alphabet;
    
    printf("Enter Triangle Alphabets Pattern Rows = ");
    scanf("%d",&rows);
    printf("\nThe Triangle Alphabets Pattern\n"); 
    
	for (i = 0 ; i < rows; i++ ) 
	{
		alphabet = 65;
		for (j = rows ; j > i; j-- ) 	
		{
			printf(" ");
		}
		for(k = 0; k <= i; k++)
		{
			printf("%c ", alphabet + k);
		}
		printf("\n");
	}
    return 0;
}

The result of the above c program; is as follows:

Enter Triangle Alphabets Pattern Rows = 5
The Triangle Alphabets Pattern
     A 
    A B 
   A B C 
  A B C D 
 A B C D E 

C Program to Print Triangle Pattern of Alphabets using While Loop

#include <stdio.h>
int main()
{
    int i = 0, j, k, rows, alphabet;
    
    printf("Enter Rows = ");
    scanf("%d",&rows);
    
	while (i < rows) 
	{
		alphabet = 65;
		j = rows ;
		while ( j > i ) 	
		{
			printf(" ");
			j--;
		}
		k = 0;
		while( k <= i)
		{
			printf("%c ", alphabet + k);
			k++;
		}
		printf("\n");
		i++;
	}
    return 0;
}

The result of the above c program; is as follows:

Enter Rows = 5
     A 
    A B 
   A B C 
  A B C D 
 A B C D E 

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