oj.uz

Submission #692545

# Submission time Handle Problem Language Result Execution time Memory
692545 2023-02-01T21:10:50 Z Antekb Long Mansion (JOI17_long_mansion) C++14
25 / 100
 3000 ms 50500 KB 
#include<bits/stdc++.h>
 
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("trapv")
 
#define st first
#define nd second
#define pb push_back
#define eb emplace_back
#define pp(x) pop_back(x)
#define mp(a, b) make_pair(a, b)
#define all(x) (x).begin(), (x).end()
#define rev(x) reverse(all(x))
#define sor(x) sort(all(x))
#define sz(x) (int)(x).size()
#define rsz(x) resize(x)
 
using namespace std;
 
///~~~~~~~~~~~~~~~~~~~~~~~~~~
 
template <typename H, typename T> 
ostream& operator<<(ostream& os, pair<H, T> m){
	return os <<"("<< m.st<<", "<<m.nd<<")";
}
template <typename H> 
ostream& operator<<(ostream& os, vector<H> V){
	os<<"{";
	for(int i=0; i<V.size(); i++){
		if(i)os<<" ";
		os<<V[i];
	}
	os<<"}";
	return os;
}
 
void debug(){cerr<<"\n";}
template <typename H, typename... T>
void debug(H h, T... t) {cerr<<h; if (sizeof...(t)) cerr << ", "; debug(t...);}
#define deb(x...) cerr<<#x<<" = ";debug(x);
//#define deb(x...) ;
 
///~~~~~~~~~~~~~~~~~~~~~~~~~
 
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<pii > vii;
typedef vector<ll> vl;
typedef vector<pll> vll;
typedef string str;

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
template <typename T>
using ordered_set =
    tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

 
#define BOOST ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
 
//mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
 
const int N=1<<19, INF=1e9+5, mod=1e9+7, mod2=998244353;

struct modint{
	int n=0;
	modint(){}
	modint(ll x){
		n=x%mod;
		if(n<0)n+=mod;
	}
	operator int(){
		return n;
	}
	modint operator+(modint a){a.n = n+a.n; if(a.n>=mod)a.n-=mod;return a;}
	modint operator+=(modint a){return (*this)=(*this)+a;}
	modint operator-(modint a){a.n = n-a.n; if(a.n<0)a.n+=mod;return a;}
	modint operator-=(modint a){return (*this)=(*this)-a;}
	modint operator*(modint a){a.n = (n*1ll*a.n)%mod; return a;}
	modint operator*=(modint a){return (*this)=(*this)*a;}
	modint operator^(const ll &m)const{
		modint a(1);
		if(m==0)return a;
		if(m==1)return (*this);
		a=(*this)^(m/2);
		a*=a;
		return a*((*this)^(m&1));
	}
	modint odw(){
		return (*this)^((ll)mod-2);
	}
	modint operator/(modint a){return (*this)*a.odw();}
	modint operator/=(modint a){return (*this)=(*this)/a;}
	bool operator==(modint a){return a.n==n;}
	friend ostream& operator<<(ostream& os, modint m) {
		return os << m.n; 
	}
};
modint fact[N], fact2[N];
typedef vector<modint> vm;
void factinit(){
    fact[0]=1;
    for(int i=1; i<N; i++){
        fact[i]=(fact[i-1]*modint(i))%mod;
    }
    fact2[N-1]=fact[N-1].odw();
    for(int i=N-2; i>=0; i--){
    	fact2[i]=(fact2[i+1]*modint(i+1))%mod;
    }
}
modint npok(int _n, int _k){
    return fact[_n]*fact2[_k]*fact2[_n-_k];
}
int co[N], vis[N];
vi gdzie[N];
int L[N], R[N];
int r[N];
int find(int v){
	if(v==r[v])return v;
	return r[v]=find(r[v]);
}
void Union(int a, int b){
	a=find(a);
	b=find(b);
	r[a]=b;
}
void dfs(int v){
	vis[v]=1;
	L[v]=R[v]=v;
	r[v]=v;
	while(true){
		int RR=R[find(v)], LL=L[find(v)];
		if(lower_bound(all(gdzie[co[LL-1]]), LL)!=upper_bound(all(gdzie[co[LL-1]]), RR)){
			L[find(v)]=L[find(LL-1)];
			if(vis[LL-1]==1 && find(v)!=find(LL-1)){
				Union(v, LL-1);
				R[find(v)]=R[v];
			}
		}
		if(lower_bound(all(gdzie[co[RR]]), LL)!=upper_bound(all(gdzie[co[RR]]), RR)){
			if(vis[RR+1]==0){
				dfs(RR+1);
			}
			R[find(v)]=R[find(RR+1)];
		}
		if(RR==R[find(v)] && LL==L[find(v)])break;
	}
	vis[v]=2;
}
int main(){
	//factinit();
	//BOOST;
	int n;
	cin>>n;
	for(int i=1; i<n; i++){
		cin>>co[i];
	}
	for(int i=1; i<=n; i++){
		int k;
		cin>>k;
		for(int j=0; j<k; j++){
			int  x;
			cin>>x;
			gdzie[x].pb(i);
		}
	}
	for(int i=1; i<=n; i++){
		if(!vis[i])dfs(i);
	}
	for(int i=1; i<=n; i++){
		deb(find(i), L[find(i)], R[find(i)]);
	}
	int q;
	cin>>q;
	while(q--){
		int x, y;
		cin>>x>>y;
		if(y>R[find(x)] || y<L[find(x)]){
			cout<<"NO\n";
		}
		else cout<<"YES\n";
	}
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 16972 KB Output is correct
2 Correct 47 ms 17064 KB Output is correct
3 Correct 78 ms 17404 KB Output is correct
4 Correct 38 ms 16984 KB Output is correct
5 Correct 40 ms 17108 KB Output is correct
6 Correct 36 ms 17032 KB Output is correct
7 Correct 36 ms 16980 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 16972 KB Output is correct
2 Correct 47 ms 17064 KB Output is correct
3 Correct 78 ms 17404 KB Output is correct
4 Correct 38 ms 16984 KB Output is correct
5 Correct 40 ms 17108 KB Output is correct
6 Correct 36 ms 17032 KB Output is correct
7 Correct 36 ms 16980 KB Output is correct
8 Correct 833 ms 22752 KB Output is correct
9 Correct 811 ms 22744 KB Output is correct
10 Correct 873 ms 23304 KB Output is correct
11 Correct 875 ms 24044 KB Output is correct
12 Correct 828 ms 22380 KB Output is correct
13 Correct 845 ms 22936 KB Output is correct
14 Correct 827 ms 23056 KB Output is correct
15 Correct 840 ms 23076 KB Output is correct
16 Correct 817 ms 23032 KB Output is correct
17 Correct 890 ms 23012 KB Output is correct
18 Correct 829 ms 22972 KB Output is correct
19 Correct 890 ms 23192 KB Output is correct
20 Correct 824 ms 23292 KB Output is correct
21 Correct 843 ms 23040 KB Output is correct
22 Correct 807 ms 23068 KB Output is correct
23 Correct 815 ms 22896 KB Output is correct
24 Correct 827 ms 22928 KB Output is correct
25 Correct 830 ms 22860 KB Output is correct
26 Correct 812 ms 22816 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1879 ms 36244 KB Output is correct
2 Correct 1856 ms 36936 KB Output is correct
3 Correct 1854 ms 39272 KB Output is correct
4 Correct 1827 ms 36436 KB Output is correct
5 Correct 1857 ms 36780 KB Output is correct
6 Correct 1821 ms 38124 KB Output is correct
7 Correct 1845 ms 42832 KB Output is correct
8 Correct 1810 ms 43300 KB Output is correct
9 Correct 1808 ms 43232 KB Output is correct
10 Correct 1795 ms 43648 KB Output is correct
11 Correct 1847 ms 43540 KB Output is correct

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 16972 KB Output is correct
2 Correct 47 ms 17064 KB Output is correct
3 Correct 78 ms 17404 KB Output is correct
4 Correct 38 ms 16984 KB Output is correct
5 Correct 40 ms 17108 KB Output is correct
6 Correct 36 ms 17032 KB Output is correct
7 Correct 36 ms 16980 KB Output is correct
8 Correct 833 ms 22752 KB Output is correct
9 Correct 811 ms 22744 KB Output is correct
10 Correct 873 ms 23304 KB Output is correct
11 Correct 875 ms 24044 KB Output is correct
12 Correct 828 ms 22380 KB Output is correct
13 Correct 845 ms 22936 KB Output is correct
14 Correct 827 ms 23056 KB Output is correct
15 Correct 840 ms 23076 KB Output is correct
16 Correct 817 ms 23032 KB Output is correct
17 Correct 890 ms 23012 KB Output is correct
18 Correct 829 ms 22972 KB Output is correct
19 Correct 890 ms 23192 KB Output is correct
20 Correct 824 ms 23292 KB Output is correct
21 Correct 843 ms 23040 KB Output is correct
22 Correct 807 ms 23068 KB Output is correct
23 Correct 815 ms 22896 KB Output is correct
24 Correct 827 ms 22928 KB Output is correct
25 Correct 830 ms 22860 KB Output is correct
26 Correct 812 ms 22816 KB Output is correct
27 Correct 1879 ms 36244 KB Output is correct
28 Correct 1856 ms 36936 KB Output is correct
29 Correct 1854 ms 39272 KB Output is correct
30 Correct 1827 ms 36436 KB Output is correct
31 Correct 1857 ms 36780 KB Output is correct
32 Correct 1821 ms 38124 KB Output is correct
33 Correct 1845 ms 42832 KB Output is correct
34 Correct 1810 ms 43300 KB Output is correct
35 Correct 1808 ms 43232 KB Output is correct
36 Correct 1795 ms 43648 KB Output is correct
37 Correct 1847 ms 43540 KB Output is correct
38 Execution timed out 3070 ms 50500 KB Time limit exceeded
39 Halted 0 ms 0 KB -