Write a program that swaps two integers without using = sigh

[karan_vampire]

Solutions can be either coded in C, C++ or Java.

Write a program that swaps two integers.

Do not use "=" (equal sign) in entire program.

Note: Java Solutions are allowed to use the '=' twice at assignment i.e.
num1 = Integer.parseInt(args[0]) and
num2 = Integer.parseInt(args[1])

this question was poised to me and i am still trying to figure out the possible solution
plz guide and help me

thanks

[jsatee]

good tanks

[sk_kireeti]

Hope this answers...(C based solution)

void swap( int &r,int &s )
{
if( r < s )
{
--s;
swap( r,s );
++r;
}
else
if( r > s )
{
--r;
swap( r,s );
++s;
}
}