Question: What is the output? void Swap ( int& x , int y ) { int tmp; tmp = x; x = y; y = tmp;

What is the output?
void Swap(int& x, int y){
int tmp;
tmp = x;
x = y;
y = tmp;
}
int main(void){
int p =4, q =3;
Swap(p, q);
printf("p =%d, q =%d
", p, q);
return 0;
}

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