C++ Star Pattern 10

Posted in C++ Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 138 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

C++ Star Pattern 10

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

example.cpp

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#include <iostream>
using namespace std;

int main() {
  int i, j, k;
  for (i = 1; i <= 5; i++) {
    for (j = i; j < 5; j++)
      cout << " ";
    for (k = 1; k < i * 2; k++)
      cout << "*";
    cout << "\n";
  }
  for (i = 4; i >= 1; i--) {
    for (j = 5; j > i; j--)
      cout << " ";
    for (k = 1; k < i * 2; k++)
      cout << "*";
    cout << "\n";
  }
  return 0;
}

💻 Testing the Program

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

Output

    *
   ***
  *****
 *******
*********
 *******
  *****
   ***
    *

🧠 How the Program Works

Let's break down the logic behind the code:

The program starts with the inclusion of the iostream library, which provides input/output functionality in C++.
The line using namespace std; brings the standard namespace into the scope of the program, allowing the use of standard C++ functions and objects without explicitly specifying the namespace.
The main() function is the entry point of the program. It is where the execution begins.
The variables i, j, and k are declared as integers to be used as loop counters.
The first for loop initializes i to 1 and executes the loop as long as i is less than or equal to 5. After each iteration, i is incremented by 1.
Inside the first for loop, there are three nested loops. The first nested loop initializes j to the current value of i and executes as long as j is less than 5. After each iteration, j is incremented by 1.
Inside the second nested loop, a space character is printed using cout (the standard output stream) to create an indentation for each row of the pattern.
The third nested loop initializes k to 1 and executes as long as k is less than i*2. After each iteration, k is incremented by 1.
Inside the third nested loop, an asterisk character is printed using cout to create the pattern of stars. The number of asterisks printed in each row is determined by i*2.
After the third nested loop, a newline character (\n) is printed using cout to move the cursor to the next line, creating a new row in the pattern.
The first for loop continues until i becomes 6, at which point it exits.
After the first for loop, a second for loop is used to print the inverted pyramid pattern.
The second for loop initializes i to 4 and executes the loop as long as i is greater than or equal to 1. After each iteration, i is decremented by 1.
Inside the second for loop, there are two nested loops. The first nested loop initializes j to 5 and executes as long as j is greater than i. After each iteration, j is decremented by 1.
Inside the second nested loop, a space character is printed using cout to create an indentation for each row of the inverted pattern.
The third nested loop is similar to the one in the first for loop. It initializes k to 1 and executes as long as k is less than i*2. After each iteration, k is incremented by 1.
Inside the third nested loop, an asterisk character is printed using cout to create the inverted pattern of stars. The number of asterisks printed in each row is determined by i*2.
After the third nested loop, a newline character is printed using cout to move the cursor to the next line.
The second for loop continues until j becomes 0, at which point it exits.
Finally, the return 0; statement indicates that the program has successfully completed and returns the value 0 to the operating system. This value typically represents a 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 star 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!