void Splay::PrintLine(){
if(this==null) return;
down();
l->PrintLine();
putchar(c);
r->PrintLine();
}
void Splay::PrintLine(){
if(this==null) return;
down();
l->PrintLine();
printf("%u",this-ele); if(--leftprint) putchar(' ');
r->PrintLine();
}
void printtree(int tab) {
if (this==null) return;
int i;
for (i=1;i<=tab;++i) printf(" "); if (i==tab+1) print();
l->printtree(tab+1);
r->printtree(tab+1);
for (i=1;i<=tab;++i) printf(" "); if (i==tab+1) printf("END\n");
}
Splay* del() {
splay();
Splay *x=(l!=null?l->cutr():r!=null?r->cutl():null);
x->l=l; x->l->fa=x;
x->r=r; x->r->fa=x;
delete this;
return x;
}
void rotate(Splay *x) {
Splay *p = x->f;
int d = x->dir();
if (!p->isr()) p->f->setCh(x, p->dir());
else x->f = p->f;
p->setCh(x->ch[!d], d);
x->setCh(p, !d);
p->pull(); x->pull();
}
int main(){
//cout << RAND_MAX << endl;
//freopen("b.in", "priority", stdin);
int op;
int cnt = 0;
while (scanf("%d", &op) != EOF && op){
cnt++;
//cout << "[" << ++cnt << "]" << endl;
if (op == 1){
int K, P; scanf("%d%d", &K, &P);
splay.insert(P, K);
}else if (op == 2){
if (splay.empty()) printf("0\n");
else{
SplayNode* no = splay.findMax();
printf("%d\n", no->value);
splay.remove(no);
}
}else{
if (splay.empty()) printf("0\n");
else{
SplayNode* no = splay.findMin();
printf("%d\n", no->value);
splay.remove(no);
}
}
}
//for (int i = 0; i< cnt; i++){
//splay.findMin(), splay.findMax();
//}
//cout << cnt << endl;
}
template <typename T> void testSplayRandom ( int n ) { //随机访问测试
Splay<T> splay;
while ( splay.size() < n ) {
T e = dice ( ( T ) n * 3 ); //[0, 3n)范围内的e
switch ( dice ( 3 ) ) {
case 0: { //查找，成功率 <= 33.3%
printf ( "Searching for " ); print ( e ); printf ( " ...\n" );
splay.search ( e ) ?
printf ( "Found with" ), print ( splay.root() ), printf ( "\n" ) :
printf ( "Not found\n" );
break;
}
case 1: { //删除，成功率 <= 33.3%
printf ( "Removing " ); print ( e ); printf ( " ...\n" );
splay.remove ( e ) ?
printf ( "Removal done\n" ) :
print ( e ), printf ( " not exists\n" );
break;
}
default: {//插入，成功率 == 100%
printf ( "Inserting " ); print ( e ); printf ( " ...\n" );
splay.insert ( e );
( e == splay.root()->data ) ?
printf ( "Insertion done with" ), print ( splay.root() ), printf ( "\n" ) :
print ( e ), "duplicated";
break;
}
} //switch
print ( splay ); //无论调用哪个接口，Splay都会自我调整形态，故需统一输出
} //while
while ( splay.size() > 0 ) {
T e = dice ( ( T ) n * 3 ); //[0, 3n)范围内的e
printf ( "Removing " ); print ( e ); printf ( " ...\n" );
splay.remove ( e ) ? printf ( "Removal done\n" ), print ( splay ) : print ( e ), printf ( " not exists\n" );
}
} //课后：利用这一接口，针对不同分布的访问，验证课上对Splay分摊分析的结论
void currect(){ if(pa!=null) pa->currect(),pa->down(); }
template <typename T> void testSplayPeriod ( int n ) { //周期性访问测试
Splay<T> splay;
for ( int i = 0; i < n; i++ ) splay.insert ( ( T ) i ); print ( splay );
for ( int i = 0; i < n; i++ ) { splay.search ( ( T ) i ); print ( splay ); }
}
void del(){
if(this==null) return;
l->del();
r->del();
delete this;
}