C Program to Print Alphabet C Pattern

In this article, we will show how to write a C program to print the Alphabet uppercase C pattern or shape of stars using for loop, while loop, and functions.

#include <stdio.h>

int main() {
	int rows;

	printf("Enter Rows = ");
	scanf("%d", &rows);

	for (int i = 0; i < rows; i++)
	{
		if (i > 0 && i < rows - 1)
		{
			printf("*");
		}
		for (int j = 0; j < rows / 2 + 1; j++)
		{
			if (i == 0 || i == rows - 1)
			{
				printf(" *");
			}
		}
		printf("\n");
	}
}

Enter Rows = 15
 * * * * * * * *
*
*
*
*
*
*
*
*
*
*
*
*
*
 * * * * * * * *

Instead of a for loop, this Alphabet C Pattern of stars program uses a while loop to iterate the rows and columns. For more star programs, click here.

#include <stdio.h>

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

    printf("Enter Rows = ");
    scanf("%d",&rows);

    i = 0 ;
	while (i < rows )
	{
		printf("*");
		j = 0 ;
		while ( j < rows - 1 )
		{
			if (i == 0 || i == rows - 1)
			{
				printf("*");
			}
			else
			{
				printf(" ");
			}
			j++;
		}
		printf("\n");
		i++;
	}

    return 0;
}

Enter Rows = 16
****************
*               
*               
*               
*               
*               
*               
*               
*               
*               
*               
*               
*               
*               
*               
****************

In this C program, we create an alphabetCPat function that accepts those values and prints the Alphabet C Pattern of the given char.

#include <stdio.h>

void alphabetCPat(int rows, char a)
{
    for (int i = 0; i < rows; i++)
    {
    	if  (i > 0 && i < rows -  1)
    	{
    		printf("%c", a);
    	}

        for (int j = 0; j < rows / 2 + 1; j++)
        {
        	if (i == 0 || i == rows - 1)
        	{
        		printf(" %c", a);
        	}

        }
        printf("\n");
    }
}

int main()
{
	int rows;
	char a;

	printf("Enter Alphabet =  ");
	scanf("%c", &a);

	printf("Enter Rows = ");
	scanf("%d",&rows);

	alphabetCPat(rows, a);

    return 0;
}