Submission #924120

#	Time	Username	Problem	Language	Result	Execution time	Memory
924120		vjudge1	Stone Arranging 2 (JOI23_ho_t1)	C++17	0 / 100	1 ms	600 KiB

Main

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp> 

#define fst first 
#define snd second
#define pb push_back
#define forn(i,a,b) for(int i = a; i < b; i++)
#define ALL(x) x.begin(),x.end()
#define SZ(x) (int)x.size()
#define mset(a,v) memset((a),(v),sizeof(a))
#define FIN ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define dbg(v) cout<<"Line("<<__LINE__<<"): "<<#v<<" = "<<v<<'\n';
#define pi pair<int,int>
#define pll pair<ll,ll>
typedef long long ll;
using namespace std;
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> indexed_set;
typedef tree<int,null_type,less_equal<int>,rb_tree_tag,tree_order_statistics_node_update> indexed_multiset;

int main(){
	ll n; cin>>n;
	vector<ll> data(n);
	vector<ll> color(n);
	map<ll,ll> compress;
	forn(i,0,n) cin>>data[i];
	forn(i,0,n) compress[data[i]]=1;
	int indice = 1;
	for(auto i:compress) compress[i.fst]=indice, indice++;
	forn(i,0,n) color[i]=compress[data[i]];
	vector<ll> lastValue(n+1,-1);
	set< pair<ll,ll> > position;
	forn(i,0,n){ 
		if(lastValue[color[i]]!=-1){
			auto it = position.lower_bound({lastValue[color[i]],color[i]});
			if((*it).fst==lastValue[color[i]]){
				while(it!=position.end()){
					//cout<<(*it).fst<<"-+-+-"<<(*it).snd<<'\n';
					auto newIt = it;
					newIt++;
					position.erase(it);
					it=newIt;
				}
			}
		}
		lastValue[color[i]]=i;
		position.insert({i,color[i]});
		/*for(auto it:position) cout<<it.fst<<" "<<it.snd<<'\n';
		cout<<"----------------\n";*/
	}
	
	/*cout<<SZ(position)<<'\n';
	for(auto it:position) cout<<it.fst<<" "<<it.snd<<'\n';*/
	
	vector<ll> res;
	auto it = position.end();
	it--;
	auto newIt = it;
	newIt--;
	while(it!=position.begin()){
		/*cout<<(*it).fst<<" "<<(*it).snd<<'\n';
		cout<<(*newIt).fst<<" "<<(*newIt).snd<<'\n';
		cout<<"-------------------\n";*/
		forn(i,(*newIt).fst,(*it).fst){
			res.pb((*it).snd);
		}
		it=newIt;
		newIt=it;
		newIt--;
	}
	//cout<<"Procesamiento Terminado\n";
	forn(i,0,(*position.begin()).fst+1){
		res.pb((*position.begin()).snd);
	}
	reverse(ALL(res));
	forn(i,0,SZ(res)) cout<<res[i]<<'\n';
	return 0;
}

• Subtask 1: 0 / 25
• Subtask 2: 0 / 35
• Subtask 3: 0 / 40