#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ld, ld> pdd;
#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
const int N = (int)5e5 + 9;
int L[N];
int R[N];
int C[N];
vector<int> ls[N];
int las[N];
int lf[N];
int rf[N];
int main(){
fastIO;
int n;
cin >> n;
for(int i = 1; i < n; i ++ ){
cin >> C[i];
}
int x, k;
for(int i = 1; i <= n ; i ++ ){
cin >> k;
for(int j = 0 ; j < k ; j ++ ){
cin >> x;
ls[i].push_back(x);
}
}
for(int j = 1; j <= n; j ++ )
las[j] = -1;
for(int i = 1; i < n; i ++ ){
for(auto p : ls[i])
las[p] = i;
lf[i + 1] = las[C[i]];
}
for(int j = 1; j <= n; j ++ )
las[j] = -1;
for(int i = n; i > 1; i -- ){
for(auto p : ls[i])
las[p] = i;
rf[i - 1] = las[C[i - 1]];
}
for(int i = 1; i <= n; i ++ ){
L[i] = i;
R[i] = i;
while(1){
if(L[i] != 1 && rf[L[i] - 1] <= R[i] && rf[L[i] - 1] != -1){
L[i] -- ;
}
else if(R[i] != n && lf[R[i] + 1] >= L[i] && lf[R[i] + 1] != -1){
R[i] ++ ;
}
else{
break;
}
}
}
int Q;
cin >> Q;
int p, q;
for(int i = 0 ; i < Q; i ++ ){
cin >> p >> q;
if(q >= L[p] && q <= R[p])
cout << "YES\n";
else
cout << "NO\n";
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
12280 KB |
Output is correct |
2 |
Correct |
24 ms |
12536 KB |
Output is correct |
3 |
Correct |
34 ms |
12536 KB |
Output is correct |
4 |
Correct |
19 ms |
12280 KB |
Output is correct |
5 |
Correct |
22 ms |
12408 KB |
Output is correct |
6 |
Correct |
18 ms |
12280 KB |
Output is correct |
7 |
Correct |
19 ms |
12280 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
12280 KB |
Output is correct |
2 |
Correct |
24 ms |
12536 KB |
Output is correct |
3 |
Correct |
34 ms |
12536 KB |
Output is correct |
4 |
Correct |
19 ms |
12280 KB |
Output is correct |
5 |
Correct |
22 ms |
12408 KB |
Output is correct |
6 |
Correct |
18 ms |
12280 KB |
Output is correct |
7 |
Correct |
19 ms |
12280 KB |
Output is correct |
8 |
Correct |
141 ms |
18168 KB |
Output is correct |
9 |
Correct |
136 ms |
18124 KB |
Output is correct |
10 |
Correct |
144 ms |
18552 KB |
Output is correct |
11 |
Correct |
151 ms |
18808 KB |
Output is correct |
12 |
Correct |
128 ms |
17784 KB |
Output is correct |
13 |
Correct |
134 ms |
18424 KB |
Output is correct |
14 |
Correct |
131 ms |
18296 KB |
Output is correct |
15 |
Correct |
138 ms |
18424 KB |
Output is correct |
16 |
Correct |
134 ms |
18168 KB |
Output is correct |
17 |
Correct |
130 ms |
18288 KB |
Output is correct |
18 |
Correct |
141 ms |
18296 KB |
Output is correct |
19 |
Correct |
135 ms |
18424 KB |
Output is correct |
20 |
Correct |
135 ms |
18296 KB |
Output is correct |
21 |
Correct |
140 ms |
18112 KB |
Output is correct |
22 |
Correct |
136 ms |
18380 KB |
Output is correct |
23 |
Correct |
208 ms |
18168 KB |
Output is correct |
24 |
Correct |
141 ms |
18168 KB |
Output is correct |
25 |
Correct |
137 ms |
18168 KB |
Output is correct |
26 |
Correct |
132 ms |
18084 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1242 ms |
19996 KB |
Output is correct |
2 |
Correct |
2473 ms |
27008 KB |
Output is correct |
3 |
Execution timed out |
3021 ms |
19416 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
12280 KB |
Output is correct |
2 |
Correct |
24 ms |
12536 KB |
Output is correct |
3 |
Correct |
34 ms |
12536 KB |
Output is correct |
4 |
Correct |
19 ms |
12280 KB |
Output is correct |
5 |
Correct |
22 ms |
12408 KB |
Output is correct |
6 |
Correct |
18 ms |
12280 KB |
Output is correct |
7 |
Correct |
19 ms |
12280 KB |
Output is correct |
8 |
Correct |
141 ms |
18168 KB |
Output is correct |
9 |
Correct |
136 ms |
18124 KB |
Output is correct |
10 |
Correct |
144 ms |
18552 KB |
Output is correct |
11 |
Correct |
151 ms |
18808 KB |
Output is correct |
12 |
Correct |
128 ms |
17784 KB |
Output is correct |
13 |
Correct |
134 ms |
18424 KB |
Output is correct |
14 |
Correct |
131 ms |
18296 KB |
Output is correct |
15 |
Correct |
138 ms |
18424 KB |
Output is correct |
16 |
Correct |
134 ms |
18168 KB |
Output is correct |
17 |
Correct |
130 ms |
18288 KB |
Output is correct |
18 |
Correct |
141 ms |
18296 KB |
Output is correct |
19 |
Correct |
135 ms |
18424 KB |
Output is correct |
20 |
Correct |
135 ms |
18296 KB |
Output is correct |
21 |
Correct |
140 ms |
18112 KB |
Output is correct |
22 |
Correct |
136 ms |
18380 KB |
Output is correct |
23 |
Correct |
208 ms |
18168 KB |
Output is correct |
24 |
Correct |
141 ms |
18168 KB |
Output is correct |
25 |
Correct |
137 ms |
18168 KB |
Output is correct |
26 |
Correct |
132 ms |
18084 KB |
Output is correct |
27 |
Correct |
1242 ms |
19996 KB |
Output is correct |
28 |
Correct |
2473 ms |
27008 KB |
Output is correct |
29 |
Execution timed out |
3021 ms |
19416 KB |
Time limit exceeded |
30 |
Halted |
0 ms |
0 KB |
- |