{

q = last->rightptr;

if(keyvalue < q->key)

rr(keyvalue,&last,p);

else

rl(keyvalue,&last,&q,p);

last->balance = 0;

if(predlast == NULL)

*pt = last;

else if(keyvalue < predlast->key)

predlast->leftptr = last;

else

predlast->rightptr = last;

}