C++ Number Pattern 18

Posted in C++ Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 132 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

C++ Number Pattern 18

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 = 1; i <= 5; i++) {
    if (i % 2 == 0)
      k = 2;
    else
      k = 1;
    for (j = 1; j <= i; j++) {
      cout << k << " ";
      k += 2;
    }
    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 by including the necessary header file iostream, which provides input and output stream operations.
The using namespace std; statement allows you to use names from the standard library (such as cout and endl) without explicitly qualifying them with std::.
The main() function is the entry point of the program. It has a return type of int, indicating that it should return an integer value when it finishes execution.
Three integer variables i, j, and k are declared without any initial values.
The for loop initializes i to 1 and iterates as long as i is less than or equal to 5. After each iteration, i is incremented by 1.
Inside the outer for loop, an if-else statement is used to determine the value of k based on the value of i. If i is divisible by 2 (i.e., i is even), k is set to 2. Otherwise, k is set to 1.
The inner for loop initializes j to 1 and continues as long as j is less than or equal to i. After each iteration, j is incremented by 1.
Inside the inner for loop, the current value of k is printed using cout, followed by a space character.
The value of k is then incremented by 2, ensuring that the next value printed will be two more than the previous value.
After the inner for loop completes, a newline character is printed using cout to start a new line.
The outer for loop continues with the next iteration, and the process repeats until i exceeds 5.
Finally, the main() function returns 0, indicating successful program execution, 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!