oj.uz

Submission #848605

# Submission time Handle Problem Language Result Execution time Memory
848605 2023-09-13T02:38:30 Z dungz Long Mansion (JOI17_long_mansion) C++17
100 / 100
 223 ms 41324 KB 
//#pragma GCC optimize ("O2")
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
#define endl '\n'
#define task "task"
#define task "task"
#define prll pair<ll,ll>
#define pb push_back
#define ld long double
const ll MIN=-1e18,MAX=1e18,MOD=1e9+7,nmax=5e5+5;
int a[nmax],f[nmax];
vector<int> key[nmax];
int rr[nmax],lll[nmax],exl[nmax],exr[nmax];
void dnc(int l,int r)
{
	if(l==r)
	{
		exl[l]=exr[l]=l;
		return;
	}
	int m=(l+r)/2;
	dnc(l,m);
	dnc(m+1,r);
	int cl=m,cr=m;
	for(int i=m;i>=l;i--)
	{
		if(exr[i]==m)
		{
			cl=min(cl,exl[i]);
			while(1)
			{
				if(cr<r and rr[cr]>=cl) cr++;
				else if(cl>l and lll[cl]<=cr) cl--;
				else break;
			}
			exr[i]=cr,exl[i]=cl;
		}
	}
	cl=m+1,cr=m+1;
	for(int i=m+1;i<=r;i++)
	{
		if(exl[i]==m+1)
		{
			cr=max(cr,exr[i]);
			while(1)
			{
				if(cl>l and lll[cl]<=cr) cl--;
				else if(cr<r and rr[cr]>=cl) cr++;
				else break; 
			}
			exr[i]=cr,exl[i]=cl;
		}
	}
}
int main(){
   	//freopen (task".inp", "r", stdin);
   	//freopen (task".out", "w", stdout);
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int n;
	cin>>n;
	for(int i=1;i<n;i++)
	{
		cin>>a[i];
	}
	for(int i=1;i<=n;i++)
	{
		int x,y;
		cin>>x;
		for(int j=1;j<=x;j++)
		{
			cin>>y;
			key[i].push_back(y);
		}
	}
//	cout<<endl;
	for(int i=1;i<=n;i++)
	{
		for(auto j:key[i])
		{
			f[j]=i;
		}
		rr[i]=f[a[i]];
	}
	for(int i=0;i<=n;i++) f[i]=n+1;
	for(int i=n;i>=1;i--)
	{
		for(auto j:key[i])
		{
			f[j]=i;
		}
		lll[i]=f[a[i-1]];	
	}
//	for(int i=1;i<=n;i++)
//	{
//		cout<<rr[i]<<" "<<lll[i]<<endl;
//	}
//	cout<<endl;
	dnc(1,n);
//	for(int i=1;i<=n;i++)
//	{
//		cout<<exl[i]<<" "<<exr[i]<<endl;
//	}
	int q;
	cin>>q;
	for(int i=1;i<=q;i++)
	{
		int x,y;
		cin>>x>>y;
		if(exl[x]<=y and exr[x]>=y) cout<<"YES"<<endl;
		else cout<<"NO"<<endl;
	}
}
/*
5
1 2 3 4
2 2 3
1 1
1 1
1 3
1 4
4
2 4
4 2
1 5
5 3

*/

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22872 KB Output is correct
2 Correct 5 ms 23128 KB Output is correct
3 Correct 6 ms 23128 KB Output is correct
4 Correct 6 ms 23132 KB Output is correct
5 Correct 5 ms 22972 KB Output is correct
6 Correct 5 ms 23128 KB Output is correct
7 Correct 5 ms 22876 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22872 KB Output is correct
2 Correct 5 ms 23128 KB Output is correct
3 Correct 6 ms 23128 KB Output is correct
4 Correct 6 ms 23132 KB Output is correct
5 Correct 5 ms 22972 KB Output is correct
6 Correct 5 ms 23128 KB Output is correct
7 Correct 5 ms 22876 KB Output is correct
8 Correct 86 ms 24656 KB Output is correct
9 Correct 82 ms 24400 KB Output is correct
10 Correct 80 ms 24632 KB Output is correct
11 Correct 79 ms 24912 KB Output is correct
12 Correct 75 ms 24656 KB Output is correct
13 Correct 78 ms 24660 KB Output is correct
14 Correct 78 ms 24656 KB Output is correct
15 Correct 78 ms 24696 KB Output is correct
16 Correct 76 ms 24912 KB Output is correct
17 Correct 87 ms 24612 KB Output is correct
18 Correct 80 ms 25040 KB Output is correct
19 Correct 78 ms 24740 KB Output is correct
20 Correct 76 ms 24912 KB Output is correct
21 Correct 76 ms 24912 KB Output is correct
22 Correct 78 ms 24856 KB Output is correct
23 Correct 86 ms 24504 KB Output is correct
24 Correct 78 ms 24664 KB Output is correct
25 Correct 78 ms 24444 KB Output is correct
26 Correct 91 ms 24656 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 134 ms 28496 KB Output is correct
2 Correct 140 ms 28416 KB Output is correct
3 Correct 132 ms 28496 KB Output is correct
4 Correct 149 ms 28576 KB Output is correct
5 Correct 137 ms 28496 KB Output is correct
6 Correct 118 ms 28052 KB Output is correct
7 Correct 116 ms 28188 KB Output is correct
8 Correct 110 ms 28240 KB Output is correct
9 Correct 111 ms 28244 KB Output is correct
10 Correct 111 ms 28240 KB Output is correct
11 Correct 110 ms 28240 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22872 KB Output is correct
2 Correct 5 ms 23128 KB Output is correct
3 Correct 6 ms 23128 KB Output is correct
4 Correct 6 ms 23132 KB Output is correct
5 Correct 5 ms 22972 KB Output is correct
6 Correct 5 ms 23128 KB Output is correct
7 Correct 5 ms 22876 KB Output is correct
8 Correct 86 ms 24656 KB Output is correct
9 Correct 82 ms 24400 KB Output is correct
10 Correct 80 ms 24632 KB Output is correct
11 Correct 79 ms 24912 KB Output is correct
12 Correct 75 ms 24656 KB Output is correct
13 Correct 78 ms 24660 KB Output is correct
14 Correct 78 ms 24656 KB Output is correct
15 Correct 78 ms 24696 KB Output is correct
16 Correct 76 ms 24912 KB Output is correct
17 Correct 87 ms 24612 KB Output is correct
18 Correct 80 ms 25040 KB Output is correct
19 Correct 78 ms 24740 KB Output is correct
20 Correct 76 ms 24912 KB Output is correct
21 Correct 76 ms 24912 KB Output is correct
22 Correct 78 ms 24856 KB Output is correct
23 Correct 86 ms 24504 KB Output is correct
24 Correct 78 ms 24664 KB Output is correct
25 Correct 78 ms 24444 KB Output is correct
26 Correct 91 ms 24656 KB Output is correct
27 Correct 134 ms 28496 KB Output is correct
28 Correct 140 ms 28416 KB Output is correct
29 Correct 132 ms 28496 KB Output is correct
30 Correct 149 ms 28576 KB Output is correct
31 Correct 137 ms 28496 KB Output is correct
32 Correct 118 ms 28052 KB Output is correct
33 Correct 116 ms 28188 KB Output is correct
34 Correct 110 ms 28240 KB Output is correct
35 Correct 111 ms 28244 KB Output is correct
36 Correct 111 ms 28240 KB Output is correct
37 Correct 110 ms 28240 KB Output is correct
38 Correct 186 ms 37456 KB Output is correct
39 Correct 185 ms 41040 KB Output is correct
40 Correct 175 ms 34092 KB Output is correct
41 Correct 223 ms 41324 KB Output is correct
42 Correct 114 ms 27984 KB Output is correct
43 Correct 116 ms 27984 KB Output is correct
44 Correct 158 ms 31056 KB Output is correct
45 Correct 152 ms 31180 KB Output is correct
46 Correct 155 ms 31056 KB Output is correct
47 Correct 117 ms 27984 KB Output is correct
48 Correct 114 ms 27984 KB Output is correct
49 Correct 162 ms 31132 KB Output is correct
50 Correct 154 ms 31056 KB Output is correct
51 Correct 160 ms 31204 KB Output is correct
52 Correct 141 ms 30860 KB Output is correct
53 Correct 167 ms 34128 KB Output is correct
54 Correct 180 ms 37548 KB Output is correct
55 Correct 160 ms 34048 KB Output is correct