C Alphabet Pattern 21

Posted in C Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 10 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

C Alphabet Pattern 21

Here`s a program that prints the above alphabet pattern using C Programming:

example.c

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#include <stdio.h>

int main() {
  int i, j;
  // First Part
  for (i = 1; i <= 5; i++) {
    for (j = 1; j < i * 2; j++) {
      if (j % 2 == 0)
        printf("*");
      else
        printf("%c", i + 64);
    }
    printf("\n");
  }
  // Second Part
  for (i = 4; i >= 1; i--) {
    for (j = 1; j < i * 2; j++) {
      if (j % 2 == 0)
        printf("*");
      else
        printf("%c", i + 64);
    }
    printf("\n");
  }
  return 0;
}

💻 Testing the Program

When you run the above program, it will print the following output:

Output

A
B*B
C*C*C
D*D*D*D
E*E*E*E*E
D*D*D*D
C*C*C
B*B
A

🧠 How the Program Works

Let's break down the logic behind the code:

The program begins with the inclusion of the standard input/output library, stdio.h, which provides functions like printf and scanf.
The main function is defined with a return type of int. This function serves as the entry point of the program.
Two integer variables i and j are declared. These variables will be used as loop counters.
The first part of the program is a nested loop. The outer loop iterates from 1 to 5, and the inner loop iterates from 1 to i*2 (twice the value of i).
Within the inner loop, an if statement checks if the current value of j is divisible by 2 (i.e., even). If it is, the program prints an asterisk (*) using printf("*"). Otherwise, it prints the corresponding alphabet character by adding 64 to the value of i and using %c format specifier in printf.
After the inner loop, a newline character (\n) is printed using printf("\n"), which moves the cursor to the next line.
The first part of the program is executed again for each value of i from 1 to 5, resulting in a pattern of asterisks and alphabet characters printed on separate lines.
The second part of the program is similar to the first part but in reverse order. It uses another nested loop, where the outer loop iterates from 4 to 1, and the inner loop iterates from 1 to i*2 (twice the value of i).
The inner loop contains the same if statement to print either an asterisk or an alphabet character.
Again, after the inner loop, a newline character is printed using printf("\n").
The second part of the program is executed for each value of i from 4 to 1, resulting in a similar pattern to the first part but in reverse order.
Finally, the main function returns 0, indicating successful execution of the program.

💯 Tips for Enhancement:

Explore the versatility of this pattern by adjusting its parameters. Whether you increase or decrease the size, tweak the spacing, or modify the characters used, each change opens up a world of possibilities, allowing you to customize and create your unique visual effects.

✔ Conclusion:

Creating visually appealing patterns is not only a fun endeavour but also a great way to enhance your programming or design skills. We hope this tutorial has inspired you to explore the world of creative coding. Share your creations with us, and let your imagination run wild!

🤗 Closing Call-to-Action:

We'd love to see your unique interpretations of the alphabet pattern. Share your creations in the comments below, and don't hesitate to reach out if you have any questions or suggestions for future tutorials. Happy coding!