C++ Number Pattern 28

Posted in C++ Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 135 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

C++ Number Pattern 28

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

example.cpp

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#include <iostream>
using namespace std;

int main() {
  int i, j, k;
  for (i = 10; i >= 1; i--) {
    for (j = i; j < 10; j++)
      cout << j;
    cout << "0";
    for (k = 9; k >= i; k--)
      cout << k;
    cout << "\n";
  }
  return 0;
}

💻 Testing the Program

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

Output

0
909
89098
7890987
678909876
56789098765
4567890987654
345678909876543
23456789098765432
1234567890987654321

🧠 How the Program Works

Let's break down the logic behind the code:

The program begins with the inclusion of the iostream library, which allows input and output operations.
The statement using namespace std; allows you to use standard library elements, such as cout and endl, without specifying the namespace every time.
The main() function is the entry point of the program. It returns an integer value to indicate the success or failure of the program. In this case, it always returns 0, indicating successful execution.
The variables i, j, and k are declared as integers. These variables will be used in the subsequent loops.
The outer for loop initializes i with a value of 10 and continues as long as i is greater than or equal to 1. It decrements i by 1 in each iteration.
Inside the outer loop, there is an inner for loop. The variable j is initialized with the value of i, and the loop continues as long as j is less than 10. It increments j by 1 in each iteration.
Inside the inner loop, the statement cout << j; prints the current value of j without a newline character.
After the inner loop, the statement cout << "0"; prints the digit 0.
Another inner for loop is introduced with the variable k initialized to 9. The loop continues as long as k is greater than or equal to the current value of i. It decrements k by 1 in each iteration.
Inside this inner loop, the statement cout << k; prints the current value of k without a newline character.
Finally, the statement cout << "\n"; is used to print a newline character, which starts a new line after each iteration of the outer loop.
The program continues with the next iteration of the outer loop until the condition i>=1 becomes false.
Once the outer loop finishes executing, the return 0; statement is reached, which indicates the end of the program's execution and returns the value 0 to the operating system.

💯 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 number 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!