Swapping of Two Values without using Third Variable

Using signs + and - for swapping of two values.

using system;

namespace TestConsole

{

class Program

{

static void Main()

{

int a = 10; int b = 20;

Console.write("After swap a = {0} and b = {1}", a, b); a = a + b - (b = a);

Console.Write("After swap a = {0} and b = {1}", a, b);

}

}

}