oj.uz

답안 #895149

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
895149 2023-12-29T13:37:20 Z amirhoseinfar1385 별자리 3 (JOI20_constellation3) C++17
35 / 100
 1500 ms 31168 KB 
#include<bits/stdc++.h>
using namespace std;
const long long maxn=200000+10;
struct node{
	long long x,y,w,l,r;
}allq[maxn];
vector<int>allqi[maxn];
long long all[maxn],q,n;
vector<long long>sn,si;
pair<long long,long long>val[maxn],fakeval[maxn],fa[maxn];
bool cmpn(long long a,long long b){
	return allq[a].y<allq[b].y;
}

bool cmpi(long long a,long long b){
	if(all[a]==all[b]){
		return a<b;
	}
	return all[a]<all[b];
}

void callr()
{
	deque<pair<long long,long long>>allind;
	allind.push_back(make_pair(n+2,0));
	for(int i=1;i<=n;i++){
		for(auto x:allqi[i]){
			int p=lower_bound(allind.begin(),allind.end(),make_pair(allq[x].y,0ll))-allind.begin();
			allq[x].l=allind[p].second;
		}	
		while((int)allind.front().first<all[i]){
			allind.pop_front();
		}
		fa[i].first=allind.front().second;
		allind.push_front(make_pair(all[i],i));
	}
	allind.clear();
	allind.push_back(make_pair(n+1,n+1));
	for(int i=n;i>=1;i--){
		for(auto x:allqi[i]){
			int p=lower_bound(allind.begin(),allind.end(),make_pair(allq[x].y,0ll))-allind.begin();
			allq[x].r=allind[p].second;
		}
		while((int)allind.front().first<all[i]){
			allind.pop_front();
		}
		fa[i].second=allind.front().second;
		allind.push_front(make_pair(all[i],i));
	}
}
long long mainres=0;

void updn(long long ind){
	long long res=0,resa=0;
	long long maxa=-1;
	for(long long i=allq[ind].x;i<allq[ind].r;i++){
		if(all[i]>=maxa){
			res+=val[i].second;
			maxa=all[i];
		}
	}
	maxa=-1;
	for(long long i=allq[ind].x;i>allq[ind].l;i--){
		if(all[i]>=maxa){
			res+=val[i].first;
			maxa=all[i];
		}
	}
	res+=resa+allq[ind].w;
	fakeval[allq[ind].r].first=max(fakeval[allq[ind].r].first,res);
	fakeval[allq[ind].l].second=max(fakeval[allq[ind].l].second,res);
	mainres=max(mainres,res);
}

void upd(long long ind){
	val[ind]=fakeval[ind];
	long long res=0,maxa=-1;
	vector<long long>v;
	for(int i=ind-1;i>fa[ind].first;i--){
		if(all[i]>maxa){
			v.clear();
			maxa=all[i];
			v.push_back(i);
		}
		else if(all[i]==maxa){
			v.push_back(i);
		}
	}
	if((long long)v.size()>0){
		for(auto x:v){
			res+=val[x].second;
		}
		res+=val[v.back()].first;
		val[ind].first=max(val[ind].first,res);
	}
	res=0,maxa=-1;
	v.clear();
	for(int i=ind+1;i<fa[ind].second;i++){
		if(all[i]>maxa){
			v.clear();
			maxa=all[i];
			v.push_back(i);
		}
		else if(all[i]==maxa){
			v.push_back(i);
		}
	}
	if((long long)v.size()>0){
		for(auto x:v){
			res+=val[x].first;
		}
		res+=val[v.back()].second;
		val[ind].second=max(val[ind].second,res);
	}
	mainres=max(mainres,max(val[ind].first,val[ind].second));
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n;
	for(long long i=1;i<=n;i++){
		cin>>all[i];
		si.push_back(i);
	}
	cin>>q;
	long long suma=0;
	for(long long i=1;i<=q;i++){
		sn.push_back(i);
		cin>>allq[i].x>>allq[i].y>>allq[i].w;
		allqi[allq[i].x].push_back(i);
		suma+=allq[i].w;
	}
	callr();
	sort(sn.begin(),sn.end(),cmpn);
	sort(si.begin(),si.end(),cmpi);
	long long i=0,j=0;
	while(i<(long long)sn.size()&&j<(long long)si.size()){
		if(allq[sn[i]].y<=all[si[j]]){
			updn(sn[i]);
			i++;
		}
		else{
			upd(si[j]);
			j++;
		}
	}
	while(i<(long long)sn.size()){
		updn(sn[i]);
		i++;
	}
	while(j<(long long)si.size()){
		upd(si[j]);
		j++;
	}
	long long now=(long long)si.size()-1;
	long long res=val[si[now]].second;
	while(now!=0&&all[si[now-1]]==all[si[now]]){
		now--;
		res+=val[si[now]].second;
	}
	res+=val[si[now]].first;
	mainres=max(mainres,res);
	mainres=suma-mainres;
	cout<<mainres<<"\n";
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10588 KB Output is correct
2 Correct 2 ms 10588 KB Output is correct
3 Correct 2 ms 10588 KB Output is correct
4 Correct 2 ms 10588 KB Output is correct
5 Correct 3 ms 10588 KB Output is correct
6 Correct 2 ms 10588 KB Output is correct
7 Correct 2 ms 10588 KB Output is correct
8 Correct 2 ms 10588 KB Output is correct
9 Correct 2 ms 10596 KB Output is correct
10 Correct 2 ms 10600 KB Output is correct
11 Correct 2 ms 10596 KB Output is correct
12 Correct 2 ms 10600 KB Output is correct
13 Correct 2 ms 10600 KB Output is correct
14 Correct 2 ms 10600 KB Output is correct
15 Correct 2 ms 10600 KB Output is correct
16 Correct 2 ms 10600 KB Output is correct
17 Correct 2 ms 10596 KB Output is correct
18 Correct 2 ms 10600 KB Output is correct
19 Correct 2 ms 10600 KB Output is correct
20 Correct 2 ms 10600 KB Output is correct
21 Correct 2 ms 10600 KB Output is correct
22 Correct 2 ms 10596 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10588 KB Output is correct
2 Correct 2 ms 10588 KB Output is correct
3 Correct 2 ms 10588 KB Output is correct
4 Correct 2 ms 10588 KB Output is correct
5 Correct 3 ms 10588 KB Output is correct
6 Correct 2 ms 10588 KB Output is correct
7 Correct 2 ms 10588 KB Output is correct
8 Correct 2 ms 10588 KB Output is correct
9 Correct 2 ms 10596 KB Output is correct
10 Correct 2 ms 10600 KB Output is correct
11 Correct 2 ms 10596 KB Output is correct
12 Correct 2 ms 10600 KB Output is correct
13 Correct 2 ms 10600 KB Output is correct
14 Correct 2 ms 10600 KB Output is correct
15 Correct 2 ms 10600 KB Output is correct
16 Correct 2 ms 10600 KB Output is correct
17 Correct 2 ms 10596 KB Output is correct
18 Correct 2 ms 10600 KB Output is correct
19 Correct 2 ms 10600 KB Output is correct
20 Correct 2 ms 10600 KB Output is correct
21 Correct 2 ms 10600 KB Output is correct
22 Correct 2 ms 10596 KB Output is correct
23 Correct 3 ms 10852 KB Output is correct
24 Correct 3 ms 10856 KB Output is correct
25 Correct 3 ms 10856 KB Output is correct
26 Correct 4 ms 11108 KB Output is correct
27 Correct 3 ms 10844 KB Output is correct
28 Correct 3 ms 10844 KB Output is correct
29 Correct 3 ms 10844 KB Output is correct
30 Correct 3 ms 10840 KB Output is correct
31 Correct 3 ms 10844 KB Output is correct
32 Correct 7 ms 10844 KB Output is correct
33 Correct 8 ms 10868 KB Output is correct
34 Correct 7 ms 10844 KB Output is correct
35 Correct 7 ms 10844 KB Output is correct
36 Correct 5 ms 10844 KB Output is correct
37 Correct 5 ms 10840 KB Output is correct
38 Correct 4 ms 10844 KB Output is correct
39 Correct 4 ms 10836 KB Output is correct
40 Correct 7 ms 10844 KB Output is correct
41 Correct 4 ms 10844 KB Output is correct
42 Correct 4 ms 10840 KB Output is correct
43 Correct 8 ms 10840 KB Output is correct
44 Correct 5 ms 10844 KB Output is correct

Subtask #3
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10588 KB Output is correct
2 Correct 2 ms 10588 KB Output is correct
3 Correct 2 ms 10588 KB Output is correct
4 Correct 2 ms 10588 KB Output is correct
5 Correct 3 ms 10588 KB Output is correct
6 Correct 2 ms 10588 KB Output is correct
7 Correct 2 ms 10588 KB Output is correct
8 Correct 2 ms 10588 KB Output is correct
9 Correct 2 ms 10596 KB Output is correct
10 Correct 2 ms 10600 KB Output is correct
11 Correct 2 ms 10596 KB Output is correct
12 Correct 2 ms 10600 KB Output is correct
13 Correct 2 ms 10600 KB Output is correct
14 Correct 2 ms 10600 KB Output is correct
15 Correct 2 ms 10600 KB Output is correct
16 Correct 2 ms 10600 KB Output is correct
17 Correct 2 ms 10596 KB Output is correct
18 Correct 2 ms 10600 KB Output is correct
19 Correct 2 ms 10600 KB Output is correct
20 Correct 2 ms 10600 KB Output is correct
21 Correct 2 ms 10600 KB Output is correct
22 Correct 2 ms 10596 KB Output is correct
23 Correct 3 ms 10852 KB Output is correct
24 Correct 3 ms 10856 KB Output is correct
25 Correct 3 ms 10856 KB Output is correct
26 Correct 4 ms 11108 KB Output is correct
27 Correct 3 ms 10844 KB Output is correct
28 Correct 3 ms 10844 KB Output is correct
29 Correct 3 ms 10844 KB Output is correct
30 Correct 3 ms 10840 KB Output is correct
31 Correct 3 ms 10844 KB Output is correct
32 Correct 7 ms 10844 KB Output is correct
33 Correct 8 ms 10868 KB Output is correct
34 Correct 7 ms 10844 KB Output is correct
35 Correct 7 ms 10844 KB Output is correct
36 Correct 5 ms 10844 KB Output is correct
37 Correct 5 ms 10840 KB Output is correct
38 Correct 4 ms 10844 KB Output is correct
39 Correct 4 ms 10836 KB Output is correct
40 Correct 7 ms 10844 KB Output is correct
41 Correct 4 ms 10844 KB Output is correct
42 Correct 4 ms 10840 KB Output is correct
43 Correct 8 ms 10840 KB Output is correct
44 Correct 5 ms 10844 KB Output is correct
45 Correct 243 ms 30940 KB Output is correct
46 Correct 231 ms 30404 KB Output is correct
47 Correct 280 ms 31168 KB Output is correct
48 Correct 257 ms 30660 KB Output is correct
49 Correct 218 ms 30708 KB Output is correct
50 Correct 233 ms 30404 KB Output is correct
51 Correct 281 ms 30616 KB Output is correct
52 Correct 247 ms 30664 KB Output is correct
53 Correct 223 ms 30408 KB Output is correct
54 Execution timed out 1520 ms 30760 KB Time limit exceeded
55 Halted 0 ms 0 KB -