$/**$

$*$ @post: Clears the tree

$*/$

void SkillTree::clear$()\{$

if $($root$\_$ptr$\_!=$ nullptr$)\{$

clear$($root$\_$ptr$\_->$getLeftChildPtr$())$;

clear$($root$\_$ptr$\_->$getRightChildPtr$())$;

root$\_$ptr$\_.$reset$()$; $//$ Delete the root node

root$\_$ptr$\_=$ nullptr; $//$ Set the root pointer to nullptr

$\}$

$\}$ fix this