結果
| 問題 |
No.618 labo-index
|
| コンテスト | |
| ユーザー |
rickytheta
|
| 提出日時 | 2017-12-18 00:17:40 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
AC
|
| 実行時間 | 190 ms / 6,000 ms |
| コード長 | 4,303 bytes |
| コンパイル時間 | 1,731 ms |
| コンパイル使用メモリ | 167,552 KB |
| 実行使用メモリ | 8,916 KB |
| 最終ジャッジ日時 | 2024-12-15 23:20:10 |
| 合計ジャッジ時間 | 4,957 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 35 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:150:8: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
150 | scanf("%d",&q);
| ~~~~~^~~~~~~~~
main.cpp:155:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
155 | scanf("%d%d",&t,&x);
| ~~~~~^~~~~~~~~~~~~~
ソースコード
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef int _loop_int;
#define REP(i,n) for(_loop_int i=0;i<(_loop_int)(n);++i)
#define FOR(i,a,b) for(_loop_int i=(_loop_int)(a);i<(_loop_int)(b);++i)
#define FORR(i,a,b) for(_loop_int i=(_loop_int)(b)-1;i>=(_loop_int)(a);--i)
#define DEBUG(x) cout<<#x<<": "<<x<<endl
#define DEBUG_VEC(v) cout<<#v<<":";REP(i,v.size())cout<<" "<<v[i];cout<<endl
#define ALL(a) (a).begin(),(a).end()
#define CHMIN(a,b) a=min((a),(b))
#define CHMAX(a,b) a=max((a),(b))
// mod
const ll MOD = 1000000007ll;
#define FIX(a) ((a)%MOD+MOD)%MOD
// floating
typedef double Real;
const Real EPS = 1e-11;
#define EQ0(x) (abs(x)<EPS)
#define EQ(a,b) (abs(a-b)<EPS)
typedef complex<Real> P;
struct Treap{
private:
static const ll rd_msk = (1ll<<32)-1;
static ll rd(){
static ll rd_x = 123456789;
static ll rd_y = 362436069;
static ll rd_z = 521288629;
static ll rd_w = 88675123;
ll t = (rd_x^(rd_x<<11))&rd_msk;
rd_x = rd_y;
rd_y = rd_z;
rd_z = rd_w;
return rd_w = (rd_w^(rd_w>>19)) ^ (t^(t>>8));
}
struct node{
ll val,pri,cnt;;
node *lch, *rch;
node(ll val):val(val),cnt(1){
pri = rd();
lch = rch = NULL;
}
};
public:
node *root;
Treap():root(NULL){}
private:
ll count(node *t){return t==NULL?0:t->cnt;}
node* update(node *t){t->cnt=count(t->lch)+count(t->rch)+1;return t;}
node* merge(node *l, node *r){
if(!l || !r)return !l?r:l;
if(l->pri > r->pri){
l->rch = merge(l->rch,r);
return update(l);
}else{
r->lch = merge(l,r->lch);
return update(r);
}
}
pair<node*,node*> split(node *t, ll k){
if(!t) return make_pair<node*,node*>(NULL,NULL);
if(k <= count(t->lch)){
pair<node*,node*> s = split(t->lch,k);
t->lch = s.second;
return make_pair(s.first,update(t));
}else{
pair<node*,node*> s = split(t->rch,k-count(t->lch)-1);
t->rch = s.first;
return make_pair(update(t),s.second);
}
}
ll __find(node *p,ll v){
if(!p)return 0;
if(p->val==v)return count(p->lch);
return (p->val > v)?__find(p->lch,v):(count(p->lch)+1+__find(p->rch,v));
}
ll __less(node *p,ll v){
if(!p)return 0;
return (p->val >= v)?__less(p->lch,v):(count(p->lch)+1+__less(p->rch,v));
}
ll __less_eq(node *p,ll v){
if(!p)return 0;
return (p->val > v)?__less_eq(p->lch,v):(count(p->lch)+1+__less_eq(p->rch,v));
}
ll __get_at(node *p,ll k,ll acc){
if(!p)return -1;
ll lc=count(p->lch);
if(acc+lc==k)return p->val;
if(acc+lc>k)return __get_at(p->lch,k,acc);
if(acc+lc<k)return __get_at(p->rch,k,acc+lc+1);
}
public:
void merge(Treap that){
root = merge(root, that.root);
}
Treap split(ll k){
Treap that;
pair<node*,node*> p = split(root,k);
root = p.first;
that.root = p.second;
return that;
}
void insert_at(ll v,ll k){
pair<node*,node*> p = split(root,k);
node* nn = new node(v);
root = merge(p.first, nn);
root = merge(root, p.second);
}
void erase_at(ll k){
pair<node*,node*> p,q;
q = split(root,k+1);
p = split(q.first,k);
root = merge(p.first, q.second);
}
void insert_by(ll v){
insert_at(v,__less(root,v));
}
void erase_by(ll v){
erase_at(__find(root,v));
}
ll count_less(ll v){
return __less(root,v);
}
ll count_less_equal(ll v){
return __less_eq(root,v);
}
ll get_at(ll k){
return __get_at(root,k,0);
}
ll size(){
return count(root);
}
};
int main(){
Treap tr;
int q;
scanf("%d",&q);
ll add = 0ll;
vl insrted;
REP(tms,q){
int t,x;
scanf("%d%d",&t,&x);
if(t==1){
// insert
tr.insert_by(x-add);
insrted.push_back(x-add);
// insrted[tms] = x-add;
}else if(t==2){
// delete
ll v = insrted[x-1];
tr.erase_by(v);
}else if(t==3){
// + x
add += x;
}
// query
ll low = 0ll;
ll high = 100001ll;
while(low + 1 < high){
ll x = (low + high) / 2;
ll cnt = tr.size() - tr.count_less(x-add);
if(cnt >= x){
low = x;
}else{
high = x;
}
}
printf("%lld\n", low);
}
return 0;
}
rickytheta