#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int MX=500010, inf=2e9;
int n, q;
vector<int> A[MX];
int C[MX];
int L[MX], R[MX];
void solve(int v){
bool key[MX]={};
for(int x:A[v]) key[x]=true;
L[v]=R[v]=v;
while( (L[v]>1&&key[C[L[v]-1]]) || (R[v]<n && key[C[R[v]]])){
if(L[v]>1 && key[C[L[v]-1]]){
L[v]--;
for(int x:A[L[v]]) key[x]=true;
}
if(R[v]<n && key[C[R[v]]]){
R[v]++;
for(int x:A[R[v]]) key[x]=true;
}
}
}
int main(){
ios::sync_with_stdio(0); cin.tie(0);
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=1, x; j<=b; j++){ cin>>x, A[i].push_back(x); }
}
for(int i=1; i<=n; i++){
solve(i);
}
cin>>q;
for(int i=1; i<=q; i++){
int s,e; cin>>s>>e;
if(L[s]<=e && e<=R[s]) cout<<"YES\n";
else cout<<"NO\n";
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
76 ms |
12804 KB |
Output is correct |
2 |
Correct |
121 ms |
12968 KB |
Output is correct |
3 |
Correct |
231 ms |
13160 KB |
Output is correct |
4 |
Correct |
82 ms |
13160 KB |
Output is correct |
5 |
Correct |
104 ms |
13256 KB |
Output is correct |
6 |
Correct |
75 ms |
13324 KB |
Output is correct |
7 |
Correct |
80 ms |
13416 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
76 ms |
12804 KB |
Output is correct |
2 |
Correct |
121 ms |
12968 KB |
Output is correct |
3 |
Correct |
231 ms |
13160 KB |
Output is correct |
4 |
Correct |
82 ms |
13160 KB |
Output is correct |
5 |
Correct |
104 ms |
13256 KB |
Output is correct |
6 |
Correct |
75 ms |
13324 KB |
Output is correct |
7 |
Correct |
80 ms |
13416 KB |
Output is correct |
8 |
Correct |
230 ms |
17844 KB |
Output is correct |
9 |
Correct |
211 ms |
18144 KB |
Output is correct |
10 |
Correct |
267 ms |
18812 KB |
Output is correct |
11 |
Correct |
351 ms |
19120 KB |
Output is correct |
12 |
Correct |
169 ms |
20964 KB |
Output is correct |
13 |
Correct |
260 ms |
21004 KB |
Output is correct |
14 |
Correct |
206 ms |
21004 KB |
Output is correct |
15 |
Correct |
198 ms |
21044 KB |
Output is correct |
16 |
Correct |
234 ms |
21176 KB |
Output is correct |
17 |
Correct |
206 ms |
21176 KB |
Output is correct |
18 |
Correct |
235 ms |
21176 KB |
Output is correct |
19 |
Correct |
195 ms |
21176 KB |
Output is correct |
20 |
Correct |
266 ms |
21176 KB |
Output is correct |
21 |
Correct |
301 ms |
21256 KB |
Output is correct |
22 |
Correct |
229 ms |
21256 KB |
Output is correct |
23 |
Correct |
229 ms |
21256 KB |
Output is correct |
24 |
Correct |
220 ms |
21256 KB |
Output is correct |
25 |
Correct |
215 ms |
21256 KB |
Output is correct |
26 |
Correct |
205 ms |
21256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
3045 ms |
23744 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
76 ms |
12804 KB |
Output is correct |
2 |
Correct |
121 ms |
12968 KB |
Output is correct |
3 |
Correct |
231 ms |
13160 KB |
Output is correct |
4 |
Correct |
82 ms |
13160 KB |
Output is correct |
5 |
Correct |
104 ms |
13256 KB |
Output is correct |
6 |
Correct |
75 ms |
13324 KB |
Output is correct |
7 |
Correct |
80 ms |
13416 KB |
Output is correct |
8 |
Correct |
230 ms |
17844 KB |
Output is correct |
9 |
Correct |
211 ms |
18144 KB |
Output is correct |
10 |
Correct |
267 ms |
18812 KB |
Output is correct |
11 |
Correct |
351 ms |
19120 KB |
Output is correct |
12 |
Correct |
169 ms |
20964 KB |
Output is correct |
13 |
Correct |
260 ms |
21004 KB |
Output is correct |
14 |
Correct |
206 ms |
21004 KB |
Output is correct |
15 |
Correct |
198 ms |
21044 KB |
Output is correct |
16 |
Correct |
234 ms |
21176 KB |
Output is correct |
17 |
Correct |
206 ms |
21176 KB |
Output is correct |
18 |
Correct |
235 ms |
21176 KB |
Output is correct |
19 |
Correct |
195 ms |
21176 KB |
Output is correct |
20 |
Correct |
266 ms |
21176 KB |
Output is correct |
21 |
Correct |
301 ms |
21256 KB |
Output is correct |
22 |
Correct |
229 ms |
21256 KB |
Output is correct |
23 |
Correct |
229 ms |
21256 KB |
Output is correct |
24 |
Correct |
220 ms |
21256 KB |
Output is correct |
25 |
Correct |
215 ms |
21256 KB |
Output is correct |
26 |
Correct |
205 ms |
21256 KB |
Output is correct |
27 |
Execution timed out |
3045 ms |
23744 KB |
Time limit exceeded |
28 |
Halted |
0 ms |
0 KB |
- |