C++ Number Pattern 51

Posted in C++ Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 157 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

C++ Number Pattern 51

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;
  int k = 1, m = 1;
  for (i = 1; i <= 5; i++) {
    m = k + i - 1;
    for (j = 1; j <= i; j++) {
      if (i % 2 == 1)
        cout << k << " ";
      else
        cout << m-- << " ";
      k++;
    }
    cout << "\n";
  }
  return 0;
}

💻 Testing the Program

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

Output

1
3 2
4 5 6
10 9 8 7
11 12 13 14 15

🧠 How the Program Works

Let's break down the logic behind the code:

The program includes the necessary header file <iostream> which allows input and output operations.
The line using namespace std; indicates that we are using the standard C++ namespace, so we don't have to explicitly write std:: before the standard library functions and objects.
The main() function is the entry point of the program and the execution starts from here.
Two integer variables i and j are declared. These variables are used as loop counters in the following for loops.
Two integer variables k and m are declared and initialized to 1. These variables will be used to print the output pattern.
The outer for loop runs from i=1 to i<=5. It controls the number of rows in the pattern. The loop iterates 5 times.
Inside the outer loop, the variable m is assigned the value of k + i - 1. This assignment will be used to initialize the inner loop.
The inner for loop runs from j=1 to j<=i. It controls the number of elements to be printed in each row of the pattern. The loop iterates from 1 to the current row number (i).
Inside the inner loop, there is an if-else condition. It checks whether the value of i is odd (i.e., i%2 == 1). If i is odd, it prints the value of k, otherwise, it prints the value of m--.
If i is odd, it means we are on an odd row, so the value of k is printed. Then, the variable k is incremented.
If i is even, it means we are on an even row, so the value of m is printed, and then m is decremented (m--). The variable k is still incremented, but the value of m is used instead of k for printing.
After the inner loop completes, a newline character "\n" is printed to move to the next row.
The outer loop continues until all 5 rows are printed.
The return 0; statement indicates that the program has successfully executed and is returning an integer value of 0 to the operating system, indicating no errors.

💯 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!