C++ Number Pattern 41

Posted in C++ Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 115 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

C++ Number Pattern 41

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

example.cpp

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#include <iostream>
#include <iomanip>
using namespace std;

int main() {
  int i, j, k;
  int m = 1;
  for (i = 1; i <= 9; i += 2) {
    for (j = i; j < 9; j++)
      cout << "  ";
    for (k = 1; k <= i; k++) {
      cout << setw(4) << m * m;
      m++;
    }
    cout << "\n";
  }
  return 0;
}

💻 Testing the Program

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

Output

                  1
              4   9  16
         25  36  49  64  81
    100 121 144 169 196 225 256
289 324 361 400 441 484 529 576 625

🧠 How the Program Works

Let's break down the logic behind the code:

The program includes two standard C++ libraries: iostream for input and output operations and iomanip for manipulating output formatting.
The program defines the main function, which is the entry point of any C++ program.
It declares three integer variables: i, j, and k, and initializes another integer variable m to 1.
The program enters a nested loop structure using a for loop. The outer loop iterates over the values of i from 1 to 9 with a step size of 2 (i+=2). So, i will take the values 1, 3, 5, 7, and 9 in each iteration of the outer loop.
Inside the outer loop, there is another loop (inner loop) with the variable j. The inner loop iterates from the current value of i to 8 (9 - 1) to print spaces before printing the numbers.
In the first iteration of the outer loop (i=1), there are 4 spaces printed before the first number, in the second iteration (i=3), there are 3 spaces printed before the first number, and so on.
After printing the spaces, the program enters another loop (second inner loop) with the variable k. This loop iterates from 1 to the current value of i) and prints the square of m with proper formatting using setw(4) (sets the width of the output to 4 characters). Then, it increments m by 1.
The variable m stores the number whose square is to be printed. In each iteration of the second inner loop, the square of the next number is printed.
The program goes back to the outer loop, and the whole process is repeated until the value of i becomes greater than 9.
The result is a pattern of numbers printed in a triangular shape, with the squares of consecutive integers, and spaces to align them properly.

💯 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!