#include<bits/stdc++.h>
using namespace std;
int c[500005];
vector<int>key[500005];
int l[500005];
int r[500005];
int have[500005];
vector<int>del;
void upd(int i,int &curl,int &curr,int st,int en){
while(1){
int check=0;
while(curr<en&&have[c[curr]]){
curr++;
for(auto a:key[curr])if(!(have[a]++))del.push_back(a);
check=1;
}
while(curl>st&&have[c[curl-1]]){
curl--;
for(auto a:key[curl])if(!(have[a]++))del.push_back(a);
check=1;
}
if(!check)break;
}
r[i]=curr;
l[i]=curl;
}
void solve(int st,int en){
int m=(st+en)/2;
if(st==en)return l[m]=m,r[m]=m,void();
vector<pair<int,int>>ll,lr,rl,rr;
solve(st,m);
solve(m+1,en);
int curr=m,curl=m+1;
for(int i=m;i>=st;i--){
if(r[i]<m)continue;
while(curl>st&&curl>l[i]){
curl--;
for(auto a:key[curl])if(!(have[a]++))del.push_back(a);
}
upd(i,curl,curr,st,en);
}
for(auto x:del)have[x]=0;
del.clear();
curr=m,curl=m+1;
for(int i=m+1;i<=en;i++){
if(l[i]>m+1)continue;
while(curr<en&&curr<r[i]){
curr++;
for(auto a:key[curr])if(!(have[a]++))del.push_back(a);
}
upd(i,curl,curr,st,en);
}
for(auto x:del)have[x]=0;
del.clear();
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
int n;cin>>n;
for(int i=1;i<n;i++)cin>>c[i];
for(int i=1;i<=n;i++){
int b;cin>>b;
for(int j=0;j<b;j++){
int x;cin>>x;
key[i].push_back(x);
}
}
solve(1,n);
int q;cin>>q;
for(int i=0;i<q;i++){
int x,y;cin>>x>>y;
if(y>=l[x]&&y<=r[x])cout<<"YES\n";
else cout<<"NO\n";
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
18768 KB |
Output is correct |
2 |
Correct |
4 ms |
19024 KB |
Output is correct |
3 |
Correct |
5 ms |
19024 KB |
Output is correct |
4 |
Correct |
4 ms |
19024 KB |
Output is correct |
5 |
Correct |
4 ms |
18768 KB |
Output is correct |
6 |
Correct |
4 ms |
19024 KB |
Output is correct |
7 |
Correct |
5 ms |
19024 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
18768 KB |
Output is correct |
2 |
Correct |
4 ms |
19024 KB |
Output is correct |
3 |
Correct |
5 ms |
19024 KB |
Output is correct |
4 |
Correct |
4 ms |
19024 KB |
Output is correct |
5 |
Correct |
4 ms |
18768 KB |
Output is correct |
6 |
Correct |
4 ms |
19024 KB |
Output is correct |
7 |
Correct |
5 ms |
19024 KB |
Output is correct |
8 |
Correct |
69 ms |
20388 KB |
Output is correct |
9 |
Correct |
59 ms |
20296 KB |
Output is correct |
10 |
Correct |
58 ms |
20552 KB |
Output is correct |
11 |
Correct |
63 ms |
20808 KB |
Output is correct |
12 |
Correct |
57 ms |
20464 KB |
Output is correct |
13 |
Correct |
60 ms |
20544 KB |
Output is correct |
14 |
Correct |
59 ms |
20552 KB |
Output is correct |
15 |
Correct |
58 ms |
20564 KB |
Output is correct |
16 |
Correct |
55 ms |
20808 KB |
Output is correct |
17 |
Correct |
57 ms |
20552 KB |
Output is correct |
18 |
Correct |
58 ms |
20504 KB |
Output is correct |
19 |
Correct |
60 ms |
20720 KB |
Output is correct |
20 |
Correct |
63 ms |
20808 KB |
Output is correct |
21 |
Correct |
57 ms |
20808 KB |
Output is correct |
22 |
Correct |
57 ms |
20552 KB |
Output is correct |
23 |
Correct |
68 ms |
20396 KB |
Output is correct |
24 |
Correct |
61 ms |
20552 KB |
Output is correct |
25 |
Correct |
62 ms |
20568 KB |
Output is correct |
26 |
Correct |
63 ms |
20564 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
155 ms |
24140 KB |
Output is correct |
2 |
Correct |
160 ms |
24136 KB |
Output is correct |
3 |
Correct |
160 ms |
24136 KB |
Output is correct |
4 |
Correct |
155 ms |
24136 KB |
Output is correct |
5 |
Correct |
152 ms |
24136 KB |
Output is correct |
6 |
Correct |
133 ms |
23852 KB |
Output is correct |
7 |
Correct |
113 ms |
23880 KB |
Output is correct |
8 |
Correct |
116 ms |
23880 KB |
Output is correct |
9 |
Correct |
111 ms |
23880 KB |
Output is correct |
10 |
Correct |
127 ms |
23880 KB |
Output is correct |
11 |
Correct |
118 ms |
23880 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
18768 KB |
Output is correct |
2 |
Correct |
4 ms |
19024 KB |
Output is correct |
3 |
Correct |
5 ms |
19024 KB |
Output is correct |
4 |
Correct |
4 ms |
19024 KB |
Output is correct |
5 |
Correct |
4 ms |
18768 KB |
Output is correct |
6 |
Correct |
4 ms |
19024 KB |
Output is correct |
7 |
Correct |
5 ms |
19024 KB |
Output is correct |
8 |
Correct |
69 ms |
20388 KB |
Output is correct |
9 |
Correct |
59 ms |
20296 KB |
Output is correct |
10 |
Correct |
58 ms |
20552 KB |
Output is correct |
11 |
Correct |
63 ms |
20808 KB |
Output is correct |
12 |
Correct |
57 ms |
20464 KB |
Output is correct |
13 |
Correct |
60 ms |
20544 KB |
Output is correct |
14 |
Correct |
59 ms |
20552 KB |
Output is correct |
15 |
Correct |
58 ms |
20564 KB |
Output is correct |
16 |
Correct |
55 ms |
20808 KB |
Output is correct |
17 |
Correct |
57 ms |
20552 KB |
Output is correct |
18 |
Correct |
58 ms |
20504 KB |
Output is correct |
19 |
Correct |
60 ms |
20720 KB |
Output is correct |
20 |
Correct |
63 ms |
20808 KB |
Output is correct |
21 |
Correct |
57 ms |
20808 KB |
Output is correct |
22 |
Correct |
57 ms |
20552 KB |
Output is correct |
23 |
Correct |
68 ms |
20396 KB |
Output is correct |
24 |
Correct |
61 ms |
20552 KB |
Output is correct |
25 |
Correct |
62 ms |
20568 KB |
Output is correct |
26 |
Correct |
63 ms |
20564 KB |
Output is correct |
27 |
Correct |
155 ms |
24140 KB |
Output is correct |
28 |
Correct |
160 ms |
24136 KB |
Output is correct |
29 |
Correct |
160 ms |
24136 KB |
Output is correct |
30 |
Correct |
155 ms |
24136 KB |
Output is correct |
31 |
Correct |
152 ms |
24136 KB |
Output is correct |
32 |
Correct |
133 ms |
23852 KB |
Output is correct |
33 |
Correct |
113 ms |
23880 KB |
Output is correct |
34 |
Correct |
116 ms |
23880 KB |
Output is correct |
35 |
Correct |
111 ms |
23880 KB |
Output is correct |
36 |
Correct |
127 ms |
23880 KB |
Output is correct |
37 |
Correct |
118 ms |
23880 KB |
Output is correct |
38 |
Correct |
163 ms |
33288 KB |
Output is correct |
39 |
Correct |
177 ms |
36936 KB |
Output is correct |
40 |
Correct |
155 ms |
29776 KB |
Output is correct |
41 |
Correct |
275 ms |
37192 KB |
Output is correct |
42 |
Correct |
109 ms |
23732 KB |
Output is correct |
43 |
Correct |
107 ms |
23888 KB |
Output is correct |
44 |
Correct |
151 ms |
26952 KB |
Output is correct |
45 |
Correct |
161 ms |
27112 KB |
Output is correct |
46 |
Correct |
184 ms |
26956 KB |
Output is correct |
47 |
Correct |
135 ms |
24264 KB |
Output is correct |
48 |
Correct |
127 ms |
23880 KB |
Output is correct |
49 |
Correct |
231 ms |
27120 KB |
Output is correct |
50 |
Correct |
205 ms |
27332 KB |
Output is correct |
51 |
Correct |
222 ms |
27328 KB |
Output is correct |
52 |
Correct |
136 ms |
27752 KB |
Output is correct |
53 |
Correct |
175 ms |
31164 KB |
Output is correct |
54 |
Correct |
205 ms |
35768 KB |
Output is correct |
55 |
Correct |
160 ms |
32188 KB |
Output is correct |