Swap two variable values without using a third variable

Question

... and no functions either!

Answer 1

a=a+b-(b=a);

Answer 2

Or this:
a=a+b;
b=a-b;
a=a-b;

Answer 3

before u get misleaded by other comments -best answer is from riisu.
filip 's answer is correct too but riisu's one is faster and neetish doesnt know a **** about programming

Answer 4

Why was it wrong?

Answer 5

😂😂😂

Answer 6

if(&x!=&y){
x ^= y;
y ^= x;
x ^= y;
}

Answer 7

no bro sorry its right😂😂😂 sorry

Answer 8

__asm
{
mov eax, Var1
xchg eax, Var2
xchg eax, Var1
}

Didn't say we couldn't use assembly :p

Answer 9

😂😂😂😂 filip ur first answer was wrong.😂😂😂😂

Answer 10

int a =3
int b=4
a=b-1
b=a