What is the output of this code, given the following function definition?

int x $=5,$ y $=2$;

y $=$ mixUp $($x$,$ y$)$;

cout $<<$ x;

int mixUp $($int &p$,$ int t$)//$function definition

$\{$

p $=$ p $*$ t;

return p $+1$;

$\}$