🔁Swapping Two Numbers Using a Temporary Variable in C++

🔁 Swapping Two Numbers Using a Temporary Variable in C++

Swapping two numbers is one of the foundational concepts in programming. In this article, we’ll explore how to swap two integers using a temporary variable in C++, along with a full example and output. We've also added a convenient "Copy Code" button for easy reuse.

💡 Definition

Swapping using a temporary variable means we use an extra variable to hold one of the values during the exchange so that no data is lost.

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📄 C++ Code Example

#include <iostream>
using namespace std;

int main() {
    int firstNumber, secondNumber, temp;

    // Input from user
    cout << "Enter the first number: ";
    cin >> firstNumber;

    cout << "Enter the second number: ";
    cin >> secondNumber;

    // Display before swapping
    cout << "\nBefore Swapping:\n";
    cout << "First Number = " << firstNumber << ", Second Number = " << secondNumber << endl;

    // Swapping logic using a temporary variable
    temp = firstNumber;
    firstNumber = secondNumber;
    secondNumber = temp;

    // Display after swapping
    cout << "\nAfter Swapping:\n";
    cout << "First Number = " << firstNumber << ", Second Number = " << secondNumber << endl;

    return 0;
}

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🛠️ How to Use

1. Copy the above code using the 📋 Copy Code button.

2. Paste it into a .cpp file, for example: SwapExample.cpp.

3. Compile using any C++ compiler:

   g++ SwapExample.cpp -o SwapExample
   

4. Run the program:

   ./SwapExample
   

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📌 Sample Output

Enter the first number: 15
Enter the second number: 25

Before Swapping:
First Number = 15, Second Number = 25

After Swapping:
First Number = 25, Second Number = 15

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