Swap two variables without using a third variable.

Question

Brijen Makwana · Accepted Answer

class Program
{
     static void Main(string[] args)
     {
           int first,second ;
           first = 1;
           second = 2;
           first = first + second;
           second = first - second;
           first = first - second;
           Console.WriteLine(first.ToString());
            Console.WriteLine(second.ToString());
            Console.ReadLine();
        }
     }
}

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