제출 #833011

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
833011		beepbeepsheep	Stone Arranging 2 (JOI23_ho_t1)	C++17	100 / 100	259 ms	23044 KiB

Main

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;

typedef tree<long long, null_type, less_equal<>,
        rb_tree_tag, tree_order_statistics_node_update>
        ordered_set;
#define ll long long
#define ii pair<ll,ll>

#ifndef DEBUG
#define cerr if (0) cerr
#define endl '\n'
#endif

const ll inf=1e15;
const ll maxn=2e5+5;
const ll mod=1e9+7;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

vector<ii> v;
ll par[maxn];
ll ans[maxn];
map<ll,ll> where;
ll root(ll x){
	if (par[x]==x) return x;
	return par[x]=root(par[x]);
}
void connect(ll a, ll b){
	a=root(a),b=root(b);
	if (a==b) return;
	par[a]=b;
}
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	ll n,ele;
	cin>>n;
	for (int i=0;i<maxn;i++) par[i]=i;
	for (int i=1;i<=n;i++){
		cin>>ele;
		if (where.find(ele)==where.end()) where[ele]=-1;
		cerr<<where[ele]<<endl;
		v.emplace_back(i,ele);
		ans[i]=ele;
		if (where[ele]!=-1){
			while (v.back().first!=where[ele]){
				connect(v.back().first,where[ele]);
				if (where[v.back().second]==v.back().first) where[v.back().second]=-1;
				v.pop_back();
			}
		}
		if (where[ele]==-1) where[ele]=i;
	}
	for (int i=1;i<=n;i++) cout<<ans[root(i)]<<endl;
	return 0;
}

• Subtask 1: 25 / 25
• Subtask 2: 35 / 35
• Subtask 3: 40 / 40