C++ Number Pattern 29

Posted in C++ Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 112 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

C++ Number Pattern 29

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

example.cpp

Copied

#include <iostream>
using namespace std;

int main() {
  int i, j, k;
  for (i = 1; i <= 5; i++) {
    for (j = 1; j <= 5; j++) {
      if (j <= i)
        cout << j;
      else
        cout << " ";
    }
    for (k = 5; k >= 1; k--) {
      if (k > i)
        cout << " ";
      else
        cout << k;
    }
    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:

Include header file: The program begins with the inclusion of the <iostream> header file, which allows the use of input and output stream objects like cout and cin.
using namespace std;: This line allows us to use elements of the std namespace directly without the need to prefix them with std::.
int main(): This is the starting point of the program. The execution of the program begins from here.
Variable declaration: Three integer variables i, j, and k are declared. These will be used in the loops later.
Outer loop (for loop with i): This loop runs from i=1 to i<=5. This loop controls the number of rows in the output.
Inner loop (for loop with j): This loop runs from j=1 to j<=5. This loop controls the printing of numbers from 1 to i in the first half of each row.
Output the numbers or spaces: In the inner loop, there's an if condition checking if j <= i. If true, it prints the value of j. If false, it prints a space.
Second inner loop (for loop with k): This loop runs from k=5 to k>=1. This loop controls the printing of numbers from 5 to i in the second half of each row.
Output the numbers or spaces in the second half: In the second inner loop, there's an if condition checking if k > i. If true, it prints a space. If false, it prints the value of k.
Newline character: After each row is printed (after both inner loops), a newline character "\n" is output, moving the output to the next line.
Repeat: The outer loop continues to run, and the process is repeated for i values from 1 to 5, resulting in a pattern with numbers from 1 to 5 in the first half and numbers from 5 to 1 in the second half of each row.
End of main() and return: Finally, the main() function ends with return 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 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!