oj.uz

Submission #888844

# Submission time Handle Problem Language Result Execution time Memory
888844 2023-12-18T09:16:54 Z Warinchai Passport (JOI23_passport) C++14
100 / 100
 829 ms 166276 KB 
#include<bits/stdc++.h>
using namespace std;
int N=2e5;
int inf=1e6;
vector<pair<int,int> >node[1000005];
vector<pair<int,int> >rv[1000005];
int disst[1000005];
int disen[1000005];
int alldis[1000005];
int vis[1000005];
void build(int st,int en,int i,int p){
    if(st==en){
        node[p+N].push_back({st,0});
        return;
    }
    int m=(st+en)/2;
    build(st,m,i*2,i);
    build(m+1,en,i*2+1,i);
    if(p!=-1)node[p+N].push_back({i+N,0});
}
void connect(int st,int en,int i,int l,int r,int x){
    if(st>r||en<l)return;
    if(st>=l&&en<=r){
        if(st==en)return void(node[x].push_back({st,1}));
        else return void(node[x].push_back({i+N,1}));
    }
    int m=(st+en)/2;
    connect(st,m,i*2,l,r,x);
    connect(m+1,en,i*2+1,l,r,x);
}
void djikstra_st(){
    priority_queue<pair<int,int>,vector<pair<int,int> >,greater<pair<int,int> > >pq;
    pq.push({0,1});
    for(int i=1;i<=5*N;i++)vis[i]=0;
    while(!pq.empty()){
        int x=pq.top().second;
        int c=pq.top().first;
        pq.pop();
        if(vis[x])continue;
        vis[x]=1;
        for(auto v:rv[x])if(c+v.second<disst[v.first])pq.push({c+v.second,v.first}),disst[v.first]=c+v.second;
    }
}
void djikstra_en(){
    priority_queue<pair<int,int>,vector<pair<int,int> >,greater<pair<int,int> > >pq;
    pq.push({0,N});
    for(int i=1;i<=5*N;i++)vis[i]=0;
    while(!pq.empty()){
        int x=pq.top().second;
        int c=pq.top().first;
        pq.pop();
        if(vis[x])continue;
        vis[x]=1;
        for(auto v:rv[x])if(c+v.second<disen[v.first])pq.push({c+v.second,v.first}),disen[v.first]=c+v.second;
    }
}
void djikstra_all(){
    priority_queue<pair<int,int>,vector<pair<int,int> >,greater<pair<int,int> > >pq;
    for(int i=1;i<=5*N;i++)alldis[i]=disst[i]+disen[i]-(1<i&&i<N),pq.push({alldis[i],i});
    for(int i=1;i<=5*N;i++)vis[i]=0;
    while(!pq.empty()){
        int x=pq.top().second;
        int c=pq.top().first;
        pq.pop();
        if(vis[x])continue;
        vis[x]=1;
        for(auto v:rv[x])if(c+v.second<alldis[v.first])pq.push({c+v.second,v.first}),alldis[v.first]=c+v.second;
    }
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin>>N;
    build(1,N,1,-1);
    for(int i=1;i<=N;i++){
        int a,b;
        cin>>a>>b;
        connect(1,N,1,a,b,i);
    }
    for(int i=1;i<=5*N;i++)for(auto x:node[i])rv[x.first].push_back({i,x.second});
    for(int i=1;i<=5*N;i++)disst[i]=disen[i]=alldis[i]=inf;
    disst[1]=disen[N]=0;
    djikstra_st();
    djikstra_en();
    //for(int i=1;i<=N;i++)cerr<<i<<" "<<disst[i]<<" "<<disen[i]<<endl;
    djikstra_all();
    int q;
    cin>>q;
    while(q--){
        int x;
        cin>>x;
        cout<<(alldis[x]<inf?alldis[x]:-1)<<"\n";
    }
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 54620 KB Output is correct
2 Correct 12 ms 54692 KB Output is correct
3 Correct 11 ms 54620 KB Output is correct
4 Correct 759 ms 148776 KB Output is correct
5 Correct 480 ms 108288 KB Output is correct
6 Correct 277 ms 101880 KB Output is correct
7 Correct 300 ms 97988 KB Output is correct
8 Correct 273 ms 112256 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 54616 KB Output is correct
2 Correct 13 ms 54616 KB Output is correct
3 Correct 13 ms 54620 KB Output is correct
4 Correct 12 ms 54620 KB Output is correct
5 Correct 13 ms 54684 KB Output is correct
6 Correct 12 ms 54632 KB Output is correct
7 Correct 12 ms 54620 KB Output is correct
8 Correct 12 ms 54456 KB Output is correct
9 Correct 12 ms 54708 KB Output is correct
10 Correct 14 ms 54468 KB Output is correct
11 Correct 13 ms 54616 KB Output is correct
12 Correct 15 ms 54764 KB Output is correct
13 Correct 13 ms 54676 KB Output is correct
14 Correct 12 ms 54616 KB Output is correct
15 Correct 12 ms 54792 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 54616 KB Output is correct
2 Correct 13 ms 54616 KB Output is correct
3 Correct 13 ms 54620 KB Output is correct
4 Correct 12 ms 54620 KB Output is correct
5 Correct 13 ms 54684 KB Output is correct
6 Correct 12 ms 54632 KB Output is correct
7 Correct 12 ms 54620 KB Output is correct
8 Correct 12 ms 54456 KB Output is correct
9 Correct 12 ms 54708 KB Output is correct
10 Correct 14 ms 54468 KB Output is correct
11 Correct 13 ms 54616 KB Output is correct
12 Correct 15 ms 54764 KB Output is correct
13 Correct 13 ms 54676 KB Output is correct
14 Correct 12 ms 54616 KB Output is correct
15 Correct 12 ms 54792 KB Output is correct
16 Correct 17 ms 55468 KB Output is correct
17 Correct 17 ms 55388 KB Output is correct
18 Correct 17 ms 55644 KB Output is correct
19 Correct 17 ms 55648 KB Output is correct
20 Correct 15 ms 55276 KB Output is correct
21 Correct 16 ms 55388 KB Output is correct
22 Correct 16 ms 55136 KB Output is correct
23 Correct 15 ms 55256 KB Output is correct
24 Correct 15 ms 55384 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 54616 KB Output is correct
2 Correct 13 ms 54616 KB Output is correct
3 Correct 13 ms 54620 KB Output is correct
4 Correct 12 ms 54620 KB Output is correct
5 Correct 13 ms 54684 KB Output is correct
6 Correct 12 ms 54632 KB Output is correct
7 Correct 12 ms 54620 KB Output is correct
8 Correct 12 ms 54456 KB Output is correct
9 Correct 12 ms 54708 KB Output is correct
10 Correct 14 ms 54468 KB Output is correct
11 Correct 13 ms 54616 KB Output is correct
12 Correct 15 ms 54764 KB Output is correct
13 Correct 13 ms 54676 KB Output is correct
14 Correct 12 ms 54616 KB Output is correct
15 Correct 12 ms 54792 KB Output is correct
16 Correct 17 ms 55468 KB Output is correct
17 Correct 17 ms 55388 KB Output is correct
18 Correct 17 ms 55644 KB Output is correct
19 Correct 17 ms 55648 KB Output is correct
20 Correct 15 ms 55276 KB Output is correct
21 Correct 16 ms 55388 KB Output is correct
22 Correct 16 ms 55136 KB Output is correct
23 Correct 15 ms 55256 KB Output is correct
24 Correct 15 ms 55384 KB Output is correct
25 Correct 12 ms 54620 KB Output is correct
26 Correct 12 ms 54660 KB Output is correct
27 Correct 20 ms 55644 KB Output is correct
28 Correct 17 ms 55404 KB Output is correct
29 Correct 15 ms 55388 KB Output is correct
30 Correct 16 ms 55376 KB Output is correct
31 Correct 18 ms 55640 KB Output is correct

Subtask #5
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 54620 KB Output is correct
2 Correct 12 ms 54692 KB Output is correct
3 Correct 11 ms 54620 KB Output is correct
4 Correct 759 ms 148776 KB Output is correct
5 Correct 480 ms 108288 KB Output is correct
6 Correct 277 ms 101880 KB Output is correct
7 Correct 300 ms 97988 KB Output is correct
8 Correct 273 ms 112256 KB Output is correct
9 Correct 13 ms 54616 KB Output is correct
10 Correct 13 ms 54616 KB Output is correct
11 Correct 13 ms 54620 KB Output is correct
12 Correct 12 ms 54620 KB Output is correct
13 Correct 13 ms 54684 KB Output is correct
14 Correct 12 ms 54632 KB Output is correct
15 Correct 12 ms 54620 KB Output is correct
16 Correct 12 ms 54456 KB Output is correct
17 Correct 12 ms 54708 KB Output is correct
18 Correct 14 ms 54468 KB Output is correct
19 Correct 13 ms 54616 KB Output is correct
20 Correct 15 ms 54764 KB Output is correct
21 Correct 13 ms 54676 KB Output is correct
22 Correct 12 ms 54616 KB Output is correct
23 Correct 12 ms 54792 KB Output is correct
24 Correct 17 ms 55468 KB Output is correct
25 Correct 17 ms 55388 KB Output is correct
26 Correct 17 ms 55644 KB Output is correct
27 Correct 17 ms 55648 KB Output is correct
28 Correct 15 ms 55276 KB Output is correct
29 Correct 16 ms 55388 KB Output is correct
30 Correct 16 ms 55136 KB Output is correct
31 Correct 15 ms 55256 KB Output is correct
32 Correct 15 ms 55384 KB Output is correct
33 Correct 12 ms 54620 KB Output is correct
34 Correct 12 ms 54660 KB Output is correct
35 Correct 20 ms 55644 KB Output is correct
36 Correct 17 ms 55404 KB Output is correct
37 Correct 15 ms 55388 KB Output is correct
38 Correct 16 ms 55376 KB Output is correct
39 Correct 18 ms 55640 KB Output is correct
40 Correct 829 ms 161276 KB Output is correct
41 Correct 501 ms 111872 KB Output is correct
42 Correct 586 ms 166276 KB Output is correct
43 Correct 584 ms 165248 KB Output is correct
44 Correct 268 ms 104656 KB Output is correct
45 Correct 407 ms 117760 KB Output is correct
46 Correct 156 ms 82336 KB Output is correct
47 Correct 471 ms 118532 KB Output is correct
48 Correct 418 ms 136228 KB Output is correct