#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << " " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << " " << j << " " << #i << " " << q << " " << #p << endl;
#define show4(x,y) for(auto it:y) cout << it << " "; cout << #x << endl;
typedef pair<long long,long long>pii;
typedef pair<int,pii>pi2;
mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());
vector<int>storage[5005];
bool f(int val, int l, int r){
int index=lower_bound(storage[val].begin(),storage[val].end(),l)-storage[val].begin();
//show3(val,val,l,l,r,r);
//show(sz,storage[val].size());
if(index==(int)storage[val].size()) return false;
//show2(index,index,storage[val][index],storage[val][index]);
if(storage[val][index]<=r) return true;
return false;
}
void solve(){
int n;
cin >> n;
int arr[n+1];
for(int x=1;x<n;x++){
cin >> arr[x];
}
int temp,temp2;
for(int x=1;x<=n;x++){
cin >> temp;
for(int y=0;y<temp;y++){
cin >> temp2;
storage[temp2].push_back(x);
}
}
pii ans[n+5];
for(int x=1;x<=n;x++){
int l=x;
int r=x;
while(1){
if(l!=1&&f(arr[l-1],l,r)){
l--;
}
else if(r!=n&&f(arr[r],l,r)){
r++;
}
else break;
}
ans[x]={l,r};
//show2(l,l,r,r);
}
int q;
cin >> q;
for(int x=0;x<q;x++){
cin >> temp >> temp2;
if(ans[temp].first<=temp2&&ans[temp].second>=temp2){
cout << "YES\n";
}
else cout << "NO\n";
}
}
int32_t main(){
ios::sync_with_stdio(0);
cin.tie(0);
int t=1;
//freopen("in.txt","r",stdin);
//cin >> t;
while(t--){
solve();
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
604 KB |
Output is correct |
2 |
Correct |
69 ms |
852 KB |
Output is correct |
3 |
Correct |
353 ms |
820 KB |
Output is correct |
4 |
Correct |
3 ms |
736 KB |
Output is correct |
5 |
Correct |
55 ms |
732 KB |
Output is correct |
6 |
Correct |
7 ms |
676 KB |
Output is correct |
7 |
Correct |
7 ms |
604 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
604 KB |
Output is correct |
2 |
Correct |
69 ms |
852 KB |
Output is correct |
3 |
Correct |
353 ms |
820 KB |
Output is correct |
4 |
Correct |
3 ms |
736 KB |
Output is correct |
5 |
Correct |
55 ms |
732 KB |
Output is correct |
6 |
Correct |
7 ms |
676 KB |
Output is correct |
7 |
Correct |
7 ms |
604 KB |
Output is correct |
8 |
Correct |
86 ms |
6456 KB |
Output is correct |
9 |
Correct |
82 ms |
6400 KB |
Output is correct |
10 |
Correct |
139 ms |
6700 KB |
Output is correct |
11 |
Correct |
443 ms |
7020 KB |
Output is correct |
12 |
Correct |
75 ms |
6048 KB |
Output is correct |
13 |
Correct |
87 ms |
6556 KB |
Output is correct |
14 |
Correct |
71 ms |
6692 KB |
Output is correct |
15 |
Correct |
91 ms |
6648 KB |
Output is correct |
16 |
Correct |
123 ms |
6424 KB |
Output is correct |
17 |
Correct |
70 ms |
6728 KB |
Output is correct |
18 |
Correct |
80 ms |
6740 KB |
Output is correct |
19 |
Correct |
73 ms |
6732 KB |
Output is correct |
20 |
Correct |
114 ms |
6716 KB |
Output is correct |
21 |
Correct |
117 ms |
6480 KB |
Output is correct |
22 |
Correct |
82 ms |
6516 KB |
Output is correct |
23 |
Correct |
77 ms |
6488 KB |
Output is correct |
24 |
Correct |
77 ms |
6512 KB |
Output is correct |
25 |
Correct |
76 ms |
6480 KB |
Output is correct |
26 |
Correct |
76 ms |
6384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
3088 ms |
9012 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
604 KB |
Output is correct |
2 |
Correct |
69 ms |
852 KB |
Output is correct |
3 |
Correct |
353 ms |
820 KB |
Output is correct |
4 |
Correct |
3 ms |
736 KB |
Output is correct |
5 |
Correct |
55 ms |
732 KB |
Output is correct |
6 |
Correct |
7 ms |
676 KB |
Output is correct |
7 |
Correct |
7 ms |
604 KB |
Output is correct |
8 |
Correct |
86 ms |
6456 KB |
Output is correct |
9 |
Correct |
82 ms |
6400 KB |
Output is correct |
10 |
Correct |
139 ms |
6700 KB |
Output is correct |
11 |
Correct |
443 ms |
7020 KB |
Output is correct |
12 |
Correct |
75 ms |
6048 KB |
Output is correct |
13 |
Correct |
87 ms |
6556 KB |
Output is correct |
14 |
Correct |
71 ms |
6692 KB |
Output is correct |
15 |
Correct |
91 ms |
6648 KB |
Output is correct |
16 |
Correct |
123 ms |
6424 KB |
Output is correct |
17 |
Correct |
70 ms |
6728 KB |
Output is correct |
18 |
Correct |
80 ms |
6740 KB |
Output is correct |
19 |
Correct |
73 ms |
6732 KB |
Output is correct |
20 |
Correct |
114 ms |
6716 KB |
Output is correct |
21 |
Correct |
117 ms |
6480 KB |
Output is correct |
22 |
Correct |
82 ms |
6516 KB |
Output is correct |
23 |
Correct |
77 ms |
6488 KB |
Output is correct |
24 |
Correct |
77 ms |
6512 KB |
Output is correct |
25 |
Correct |
76 ms |
6480 KB |
Output is correct |
26 |
Correct |
76 ms |
6384 KB |
Output is correct |
27 |
Execution timed out |
3088 ms |
9012 KB |
Time limit exceeded |
28 |
Halted |
0 ms |
0 KB |
- |