In this article, we will show how to write a C program to print the Alphabet F 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++ )
{
printf("*");
for (int j = 0 ; j < rows; j++ )
{
if ((i == 0) || (i == rows / 2 && j <= rows / 2))
{
printf("*");
}
else
{
continue;
}
}
printf("\n");
}
return 0;
}
Enter Rows = 15
****************
*
*
*
*
*
*
*********
*
*
*
*
*
*
*
Instead of a for loop, this Alphabet F 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)
{
if ((i == 0) || (i == rows / 2 && j <= rows / 2))
{
printf("*");
}
else
{
printf(" ");
}
j++;
}
printf("\n");
i++;
}
}
Enter Rows = 17
******************
*
*
*
*
*
*
*
**********
*
*
*
*
*
*
*
*
In this C program, we create an alphabetFPat function that accepts those values and prints the Alphabet F Pattern of the given char.
#include <stdio.h>
void alphabetFPat(int rows, char a)
{
for (int i = 0 ; i < rows; i++ )
{
printf("%c", a);
for (int j = 0; j < rows; j++)
{
if ((i == 0) || (i == rows / 2 && j <= rows / 2))
{
printf("%c", a);
}
else
{
printf(" ");
}
}
printf("\n");
}
}
int main()
{
int rows;
char a;
printf("Enter Alphabet = ");
scanf("%c", &a);
printf("Enter Rows = ");
scanf("%d",&rows);
alphabetFPat(rows, a);
return 0;
}