can some body tell me that:
void swap(node *p,node *q)
{
node *t;
t=p;
p=q;
q=t;
}
void mirror(node *p)
{
if (p==NULL)
return;
else
{ mirror(p->r);
mirror(p->l);
swap(p->r,p->l);
}
}
in this the swapping is occuring but if i do :
void mirror(node *p)
{
if (p==NULL)
return;
else
{ mirror(p->r);
mirror(p->l);
node *t;
t=p->r;
p->r=p->l;
p->l=t;
}
}
here it is not getting done .. why??
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