C# Program to swap two numbers without third variable

— November 17, 2019 in C# • add comment

We can swap two numbers without using third variable. The below program is common ways to swap two numbers without using third variable

Let’s see a simple C# example to swap two numbers without using third variable.

using System;
namespace OppsConcept
{
     class Program
     {
        static void Main(string[] args)
        {
            int A = 5, B = 10;
            Console.WriteLine("Before Swap value of A: " + A);
            Console.WriteLine("Before Swap value of B: " + B);

            B = B - A;
            A = A + B;

            Console.WriteLine("After Swap value of A: " + A);
            Console.WriteLine("After Swap value of B: " + B);

            Console.ReadKey();

        }
     }
}

Before swapping the value of A & B

Before Swap value of A: 5
Before Swap value of B: 10

After swapping the value of A & B

After Swap value of A: 10
After Swap value of B: 5

C# Program to swap two numbers without third variable

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