#include<bits/stdc++.h>
using namespace std;
const int MAXN=500005;
int C[MAXN],kiri[MAXN],kanan[MAXN],nearL[MAXN],nearR[MAXN],last[MAXN];
vector<int> kunci[MAXN];
int main(){
ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
int n,q,b,a;
cin >> n;
for(int i=1;i<n;i++)cin >> C[i];
for(int i=1;i<=n;i++){
cin >> b;
for(int j=1;j<=b;j++){
cin >> a;
kunci[i].push_back(a);
}
}
for(int i=1;i<n;i++){
for(auto isi : kunci[i]){
last[isi]=i;
}
nearL[i]=last[C[i]];
}
for(int i=1;i<=n;i++)last[i]=n+5;
for(int i=n-1;i>=1;i--){
for(auto isi : kunci[i+1]){
last[isi]=i+1;
}
nearR[i]=last[C[i]];
}
for(int i=1;i<=n;i++){
kiri[i]=i;kanan[i]=i;
while(true){
if(kiri[i]-1>=1 && nearR[kiri[i]-1]<=kanan[i]){
kanan[i]=max(kanan[i],kanan[kiri[i]-1]);
kiri[i]=kiri[kiri[i]-1];
}
else if(kanan[i]+1<=n && nearL[kanan[i]]>=kiri[i]){
kanan[i]++;
}
else break;
}
}
cin >> q;
while(q--){
cin >> a >> b;
if(b>a){
if(b<=kanan[a])cout << "YES\n";
else cout << "NO\n";
}
else{
if(b>=kiri[a])cout << "YES\n";
else cout << "NO\n";
}
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
12392 KB |
Output is correct |
2 |
Correct |
10 ms |
12416 KB |
Output is correct |
3 |
Correct |
10 ms |
12544 KB |
Output is correct |
4 |
Correct |
10 ms |
12288 KB |
Output is correct |
5 |
Correct |
10 ms |
12288 KB |
Output is correct |
6 |
Correct |
10 ms |
12288 KB |
Output is correct |
7 |
Correct |
10 ms |
12320 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
12392 KB |
Output is correct |
2 |
Correct |
10 ms |
12416 KB |
Output is correct |
3 |
Correct |
10 ms |
12544 KB |
Output is correct |
4 |
Correct |
10 ms |
12288 KB |
Output is correct |
5 |
Correct |
10 ms |
12288 KB |
Output is correct |
6 |
Correct |
10 ms |
12288 KB |
Output is correct |
7 |
Correct |
10 ms |
12320 KB |
Output is correct |
8 |
Correct |
116 ms |
18168 KB |
Output is correct |
9 |
Correct |
112 ms |
18116 KB |
Output is correct |
10 |
Correct |
116 ms |
18588 KB |
Output is correct |
11 |
Correct |
120 ms |
18936 KB |
Output is correct |
12 |
Correct |
107 ms |
17784 KB |
Output is correct |
13 |
Correct |
115 ms |
18296 KB |
Output is correct |
14 |
Correct |
113 ms |
18464 KB |
Output is correct |
15 |
Correct |
112 ms |
18296 KB |
Output is correct |
16 |
Correct |
107 ms |
18296 KB |
Output is correct |
17 |
Correct |
116 ms |
18296 KB |
Output is correct |
18 |
Correct |
116 ms |
18424 KB |
Output is correct |
19 |
Correct |
118 ms |
18424 KB |
Output is correct |
20 |
Correct |
109 ms |
18296 KB |
Output is correct |
21 |
Correct |
110 ms |
18168 KB |
Output is correct |
22 |
Correct |
118 ms |
18296 KB |
Output is correct |
23 |
Correct |
116 ms |
18168 KB |
Output is correct |
24 |
Correct |
112 ms |
18168 KB |
Output is correct |
25 |
Correct |
115 ms |
18168 KB |
Output is correct |
26 |
Correct |
112 ms |
18168 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
197 ms |
27256 KB |
Output is correct |
2 |
Correct |
192 ms |
27128 KB |
Output is correct |
3 |
Correct |
189 ms |
27000 KB |
Output is correct |
4 |
Correct |
196 ms |
27128 KB |
Output is correct |
5 |
Correct |
192 ms |
27128 KB |
Output is correct |
6 |
Correct |
166 ms |
25848 KB |
Output is correct |
7 |
Correct |
164 ms |
25720 KB |
Output is correct |
8 |
Correct |
163 ms |
25592 KB |
Output is correct |
9 |
Correct |
175 ms |
25704 KB |
Output is correct |
10 |
Correct |
158 ms |
25592 KB |
Output is correct |
11 |
Correct |
161 ms |
25592 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
12392 KB |
Output is correct |
2 |
Correct |
10 ms |
12416 KB |
Output is correct |
3 |
Correct |
10 ms |
12544 KB |
Output is correct |
4 |
Correct |
10 ms |
12288 KB |
Output is correct |
5 |
Correct |
10 ms |
12288 KB |
Output is correct |
6 |
Correct |
10 ms |
12288 KB |
Output is correct |
7 |
Correct |
10 ms |
12320 KB |
Output is correct |
8 |
Correct |
116 ms |
18168 KB |
Output is correct |
9 |
Correct |
112 ms |
18116 KB |
Output is correct |
10 |
Correct |
116 ms |
18588 KB |
Output is correct |
11 |
Correct |
120 ms |
18936 KB |
Output is correct |
12 |
Correct |
107 ms |
17784 KB |
Output is correct |
13 |
Correct |
115 ms |
18296 KB |
Output is correct |
14 |
Correct |
113 ms |
18464 KB |
Output is correct |
15 |
Correct |
112 ms |
18296 KB |
Output is correct |
16 |
Correct |
107 ms |
18296 KB |
Output is correct |
17 |
Correct |
116 ms |
18296 KB |
Output is correct |
18 |
Correct |
116 ms |
18424 KB |
Output is correct |
19 |
Correct |
118 ms |
18424 KB |
Output is correct |
20 |
Correct |
109 ms |
18296 KB |
Output is correct |
21 |
Correct |
110 ms |
18168 KB |
Output is correct |
22 |
Correct |
118 ms |
18296 KB |
Output is correct |
23 |
Correct |
116 ms |
18168 KB |
Output is correct |
24 |
Correct |
112 ms |
18168 KB |
Output is correct |
25 |
Correct |
115 ms |
18168 KB |
Output is correct |
26 |
Correct |
112 ms |
18168 KB |
Output is correct |
27 |
Correct |
197 ms |
27256 KB |
Output is correct |
28 |
Correct |
192 ms |
27128 KB |
Output is correct |
29 |
Correct |
189 ms |
27000 KB |
Output is correct |
30 |
Correct |
196 ms |
27128 KB |
Output is correct |
31 |
Correct |
192 ms |
27128 KB |
Output is correct |
32 |
Correct |
166 ms |
25848 KB |
Output is correct |
33 |
Correct |
164 ms |
25720 KB |
Output is correct |
34 |
Correct |
163 ms |
25592 KB |
Output is correct |
35 |
Correct |
175 ms |
25704 KB |
Output is correct |
36 |
Correct |
158 ms |
25592 KB |
Output is correct |
37 |
Correct |
161 ms |
25592 KB |
Output is correct |
38 |
Correct |
287 ms |
47224 KB |
Output is correct |
39 |
Correct |
293 ms |
52344 KB |
Output is correct |
40 |
Correct |
268 ms |
40568 KB |
Output is correct |
41 |
Correct |
303 ms |
50808 KB |
Output is correct |
42 |
Correct |
172 ms |
26744 KB |
Output is correct |
43 |
Correct |
175 ms |
26872 KB |
Output is correct |
44 |
Correct |
233 ms |
34936 KB |
Output is correct |
45 |
Correct |
235 ms |
35192 KB |
Output is correct |
46 |
Correct |
235 ms |
35196 KB |
Output is correct |
47 |
Correct |
171 ms |
27128 KB |
Output is correct |
48 |
Correct |
172 ms |
26620 KB |
Output is correct |
49 |
Correct |
235 ms |
34936 KB |
Output is correct |
50 |
Correct |
231 ms |
35064 KB |
Output is correct |
51 |
Correct |
247 ms |
35320 KB |
Output is correct |
52 |
Correct |
206 ms |
33864 KB |
Output is correct |
53 |
Correct |
243 ms |
41080 KB |
Output is correct |
54 |
Correct |
288 ms |
48120 KB |
Output is correct |
55 |
Correct |
245 ms |
41208 KB |
Output is correct |