結果
| 問題 |
No.3167 [Cherry 7th Tune C] Cut in Queue
|
| コンテスト | |
| ユーザー |
shobonvip
|
| 提出日時 | 2025-05-30 22:20:03 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 192 ms / 2,500 ms |
| コード長 | 2,675 bytes |
| コンパイル時間 | 4,627 ms |
| コンパイル使用メモリ | 252,120 KB |
| 実行使用メモリ | 26,140 KB |
| 最終ジャッジ日時 | 2025-05-30 22:20:18 |
| 合計ジャッジ時間 | 13,390 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 43 |
ソースコード
/**
author: shobonvip
created: 2025.05.30 21:58:27
**/
#include<bits/stdc++.h>
using namespace std;
//* ATCODER
#include<atcoder/all>
using namespace atcoder;
typedef modint998244353 mint;
//*/
/* BOOST MULTIPRECISION
#include<boost/multiprecision/cpp_int.hpp>
using namespace boost::multiprecision;
//*/
typedef long long ll;
#define rep(i, s, n) for (int i = (int)(s); i < (int)(n); i++)
#define rrep(i, s, n) for (int i = (int)(n)-1; i >= (int)(s); i--)
#define all(v) v.begin(), v.end()
template <typename T> bool chmin(T &a, const T &b) {
if (a <= b) return false;
a = b;
return true;
}
template <typename T> bool chmax(T &a, const T &b) {
if (a >= b) return false;
a = b;
return true;
}
template <typename T> T max(vector<T> &a){
assert(!a.empty());
T ret = a[0];
for (int i=0; i<(int)a.size(); i++) chmax(ret, a[i]);
return ret;
}
template <typename T> T min(vector<T> &a){
assert(!a.empty());
T ret = a[0];
for (int i=0; i<(int)a.size(); i++) chmin(ret, a[i]);
return ret;
}
template <typename T> T sum(vector<T> &a){
T ret = 0;
for (int i=0; i<(int)a.size(); i++) ret += a[i];
return ret;
}
int op(int a, int b) {
return a + b;
}
int e() {
return 0;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n; cin >> n;
vector<int> a(n);
rep(i,0,n) {
cin >> a[i];
a[i]--;
}
int q; cin >> q;
vector<int> nxt(n+q, -1);
vector<int> prv(n+q, -1);
int lst = a[n-1];
rep(i,0,n-1) {
nxt[a[i]] = a[i+1];
prv[a[i+1]] = a[i];
}
int piv = 0;
vector<int> typ(q), val(q);
rep(i,0,q) {
cin >> typ[i];
if (typ[i] == 1) {
cin >> val[i];
val[i]--;
if (val[i] == -1) {
nxt[lst] = n+piv;
prv[n+piv] = lst;
lst = n+piv;
piv++;
}else{
if (prv[val[i]] >= 0) {
int lft = prv[val[i]];
int rgt = val[i];
nxt[lft] = n+piv;
prv[rgt] = n+piv;
nxt[n+piv] = rgt;
prv[n+piv] = lft;
}else {
int rgt = val[i];
prv[rgt] = n+piv;
nxt[n+piv] = rgt;
}
piv++;
}
}else if (typ[i] == 3){
cin >> val[i];
}
}
segtree<int,op,e> seg(n+q);
vector<int> order;
int x = lst;
order.push_back(x);
while (prv[x] != -1) {
x = prv[x];
order.push_back(x);
}
reverse(all(order));
vector<int> taio(n+q);
rep(i,0,(int)order.size()) {
taio[order[i]] = i;
}
rep(i,0,n) {
seg.set(taio[i], +1);
}
int y;
auto f = [&](int x) -> bool {
return x < y;
};
piv = 0;
rep(i,0,q) {
if (typ[i] == 1) {
seg.set(taio[n+piv], +1);
piv++;
}else if (typ[i] == 2){
y = 1;
int v = seg.max_right(0, f);
seg.set(v, 0);
}else{
y = val[i];
int v = seg.max_right(0, f);
cout << order[v] + 1 << '\n';
}
}
}
shobonvip