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C# Program to check Perfect Square

Posted in C# Tutorial
Updated on Oct 06, 2024
By Mari Selvan
πŸ‘οΈ 89 - Views
⏳ 4 mins
πŸ’¬ 1 Comment
C# Program to check Perfect Square

Photo Credit to CodeToFun

πŸ™‹ Introduction

In the realm of programming, various mathematical problems challenge programmers to devise efficient solutions. One such problem is determining whether a given number is a perfect square.

A perfect square is a number that is the square of an integer, meaning it can be expressed as the product of an integer multiplied by itself.

In this tutorial, we'll explore a C# program designed to check whether a given number is a perfect square or not.

πŸ“„ Example

Let's dive into the C# code that accomplishes this task.

Program.cs
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using System;

class Program {
  // Function to check if a number is a perfect square
  static bool IsPerfectSquare(int number) {
    for (int i = 1; i * i <= number; i++) {
      // If i * i is equal to the number, it's a perfect square
      if (i * i == number) {
        return true;
      }
    }

    return false;
  }

  // Driver program
  static void Main() {
    // Replace this value with your desired number
    int testNumber = 16;

    // Check if the number is a perfect square
    if (IsPerfectSquare(testNumber)) {
      Console.WriteLine($"{testNumber} is a perfect square.");
    } else {
      Console.WriteLine($"{testNumber} is not a perfect square.");
    }
  }
}

πŸ’» Testing the Program

To test the program with different numbers, simply replace the value of testNumber in the Main method.

Output
16 is a perfect square.

Compile and run the program to see if the number is a perfect square.

🧠 How the Program Works

  1. The program defines a function IsPerfectSquare that takes an integer as input and returns true if the number is a perfect square, and false otherwise.
  2. Inside the function, it iterates through integers starting from 1 until the square of the current integer is greater than the given number.
  3. If the square of the current integer is equal to the given number, the function returns true indicating a perfect square.
  4. The main program then checks if a specific number (in this case, 16) is a perfect square and prints the result.

πŸ“ Between the Given Range

Let's take a look at the C# code that checks for perfect squares in the specified range.

Program.cs
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using System;

class Program {
  // Function to check if a number is a perfect square
  static bool IsPerfectSquare(int num) {
    int sqrt = (int) Math.Sqrt(num);
    return sqrt * sqrt == num;
  }

  // Driver program
  static void Main() {
    Console.Write("Perfect Square in the range 1 to 50:\n");

    // Loop through numbers from 1 to 50
    for (int i = 1; i <= 50; i++) {
      if (IsPerfectSquare(i)) {
        Console.Write(i + " ");
      }
    }

    Console.WriteLine();
  }
}

πŸ’» Testing the Program

Output
Perfect Squares in the Range 1 to 50:
1 4 9 16 25 36 49 

The program is designed to check perfect squares in the range from 1 to 50. Compile and run the program to see the output.

🧠 How the Program Works

  1. The program defines a function IsPerfectSquare that checks whether a given number is a perfect square.
  2. Inside the Main method, it iterates through numbers from 2 to 50.
  3. For each number, it checks if it is a perfect square using the IsPerfectSquare function.
  4. If a number is a perfect square, it is printed in the specified output format.

🧐 Understanding the Concept of Perfect Square

Before diving into the code, let's take a moment to understand the concept of perfect squares.

A perfect square is a number that can be expressed as the product of an integer multiplied by itself.

For example, 4, 9, and 16 are perfect squares because they are the squares of 2, 3, and 4, respectively.

🎒 Optimizing the Program

While the provided program is effective, there are alternative methods for checking perfect squares that involve mathematical properties. Consider exploring and implementing such optimizations to enhance the efficiency of your program.

Feel free to incorporate and modify this code as needed for your specific use case. Happy coding!

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Author

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πŸ‘‹ Hey, I'm Mari Selvan

For over eight years, I worked as a full-stack web developer. Now, I have chosen my profession as a full-time blogger at codetofun.com.

Buy me a coffee to make codetofun.com free for everyone.

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Mari Selvan
Mari Selvan
9 months ago

If you have any doubts regarding this article (C# Program to check Perfect Square), please comment here. I will help you immediately.

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