C++ Number Pattern 1

Posted in C++ Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 225 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

C++ Number Pattern 1

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;
  for (i = 5; i >= 1; i--) {
    for (j = 1; j <= i; j++)
      cout << j;
    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 includes the necessary header file iostream, which provides functionality for input/output operations.
The using namespace std; line indicates that the program will use the std namespace, so we don't need to explicitly write std:: before standard library functions.
The main() function is the entry point of the program. Execution of the program starts from here.
Two integer variables i and j are declared without any initialization. In C++, local variables are not automatically initialized, so their initial values are undefined until assigned explicitly.
The outer for loop is used to control the number of rows in the output pattern. It starts with i=5 and iterates as long as i is greater than or equal to 1. The loop decrements i by 1 in each iteration.
Inside the outer loop, there is an inner for loop, which controls the number of elements (values of j) in each row.
The inner loop starts with j=1 and continues as long as j is less than or equal to i. So, in the first iteration of the outer loop, the inner loop will run from 1 to 5, printing numbers 1 to 5 on the same line.
Inside the inner loop, cout << j; prints the value of j (the current loop counter) to the standard output (usually the console).
After printing all the numbers in the inner loop, cout << "\n"; is used to print a newline character, which moves the output to the next line for the next row.
The outer loop repeats the inner loop for i=4, then i=3, and so on, until i becomes 1. At this point, the outer loop terminates, and the program exits the loop.
The return 0; statement at the end of the main() function is used to indicate successful program execution, and it returns an exit code of 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!