Following is example to solve this problem.

suppose you have following two variable

a=6;

b=7;

Solution :

Function Swap(ref int x,ref int y)

{

x=x+y; //x=6+7 , x=13

y=x-y; //y=13-7, y=6

x=x-y; //x=13-6, x=7

}

## Saturday, December 4, 2010

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