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Submission #748027

# Submission time Handle Problem Language Result Execution time Memory
748027 2023-05-25T10:11:17 Z WongChun1234 Passport (JOI23_passport) C++14
100 / 100
 893 ms 166116 KB 
#include<bits/stdc++.h>
using namespace std;
const int N=200050;
int n,q,x,l[N],r[N],dist[3][N<<2],final[3][N<<2],rrl[N],mx;
vector<pair<int,int>> adj[N<<2],radj[N<<2];
priority_queue<pair<int,int>> pq;
void pre(int id,int l,int r){
    mx=max(id,mx);
    //cout<<id<<" "<<l<<" "<<r<<"\n";
    if (l==r){
        rrl[l]=id;
        return;
    }
    int m=(l+r)/2;
    pre(id*2,l,m);
    pre(id*2+1,m+1,r);
    adj[id].push_back({id*2,0});
    adj[id].push_back({id*2+1,0});
    radj[id*2].push_back({id,0});
    radj[id*2+1].push_back({id,0});
}
void build(int id,int l,int r,int ql,int qr,int rt,int dist){
    if (l>qr||r<ql) return;
    if (ql<=l&&qr>=r){
        //cout<<rt<<"<->"<<id<<"\n";
        adj[rt].push_back({id,dist});
        radj[id].push_back({rt,dist});
        return;
    }
    int m=(l+r)/2;
    build(id*2,l,m,ql,qr,rt,dist);
    build(id*2+1,m+1,r,ql,qr,rt,dist);
}
void rdij(int id,int st){
    while (pq.size()) pq.pop();
    for (int i=0;i<N*4;i++) dist[id][i]=1e8,final[id][i]=0;
    dist[id][st]=0;
    pq.push({0,st});
    while (pq.size()){
        int cnde=pq.top().second;
        pq.pop();
        if (final[id][cnde]) continue;
        final[id][cnde]=1;
        //cout<<cnde<<": "<<dist[id][cnde]<<"\n";
        for (auto i:radj[cnde]){
            if (dist[id][i.first]>dist[id][cnde]+i.second){
                dist[id][i.first]=dist[id][cnde]+i.second;
                //cout<<cnde<<"->"<<i.first<<"\n";
                pq.push({-dist[id][i.first],i.first});
            }
        }
    }
}
int main(){
    cin.tie(0)->sync_with_stdio(0);
    cin>>n;
    for (int i=1;i<=n;i++) cin>>l[i]>>r[i];
    pre(1,1,n);
    for (int i=1;i<=n;i++){
        build(1,1,n,l[i],r[i],rrl[i],1);
        if (l[i]==1) radj[mx+1].push_back({rrl[i],0});
        if (r[i]==n) radj[mx+2].push_back({rrl[i],0});
    }
    rdij(0,mx+1);
    rdij(1,mx+2);
    for (int i=1;i<=n;i++){
        //cout<<i<<": "<<dist[0][rrl[i]]<<" "<<dist[1][rrl[i]]<<"\n";
        radj[0].push_back({rrl[i],dist[0][rrl[i]]+dist[1][rrl[i]]});
        adj[rrl[i]].push_back({0,dist[0][rrl[i]]+dist[1][rrl[i]]});
    }
    rdij(2,0);
    cin>>q;
    while (q--){
        cin>>x;
        int tmp=dist[2][rrl[x]];
        cout<<(tmp>=1e8?-1:tmp+1)<<"\n";
    }
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 56592 KB Output is correct
2 Correct 26 ms 56652 KB Output is correct
3 Correct 28 ms 56592 KB Output is correct
4 Correct 818 ms 149680 KB Output is correct
5 Correct 432 ms 109452 KB Output is correct
6 Correct 284 ms 95804 KB Output is correct
7 Correct 296 ms 92172 KB Output is correct
8 Correct 242 ms 113724 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 56704 KB Output is correct
2 Correct 26 ms 56660 KB Output is correct
3 Correct 26 ms 56652 KB Output is correct
4 Correct 26 ms 56580 KB Output is correct
5 Correct 25 ms 56628 KB Output is correct
6 Correct 28 ms 56604 KB Output is correct
7 Correct 27 ms 56660 KB Output is correct
8 Correct 26 ms 56600 KB Output is correct
9 Correct 26 ms 56580 KB Output is correct
10 Correct 26 ms 56596 KB Output is correct
11 Correct 27 ms 56796 KB Output is correct
12 Correct 26 ms 56728 KB Output is correct
13 Correct 26 ms 56768 KB Output is correct
14 Correct 28 ms 56708 KB Output is correct
15 Correct 29 ms 56732 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 56704 KB Output is correct
2 Correct 26 ms 56660 KB Output is correct
3 Correct 26 ms 56652 KB Output is correct
4 Correct 26 ms 56580 KB Output is correct
5 Correct 25 ms 56628 KB Output is correct
6 Correct 28 ms 56604 KB Output is correct
7 Correct 27 ms 56660 KB Output is correct
8 Correct 26 ms 56600 KB Output is correct
9 Correct 26 ms 56580 KB Output is correct
10 Correct 26 ms 56596 KB Output is correct
11 Correct 27 ms 56796 KB Output is correct
12 Correct 26 ms 56728 KB Output is correct
13 Correct 26 ms 56768 KB Output is correct
14 Correct 28 ms 56708 KB Output is correct
15 Correct 29 ms 56732 KB Output is correct
16 Correct 35 ms 57432 KB Output is correct
17 Correct 31 ms 57244 KB Output is correct
18 Correct 41 ms 57728 KB Output is correct
19 Correct 35 ms 57764 KB Output is correct
20 Correct 30 ms 57132 KB Output is correct
21 Correct 29 ms 57300 KB Output is correct
22 Correct 29 ms 57172 KB Output is correct
23 Correct 31 ms 57284 KB Output is correct
24 Correct 30 ms 57412 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 56704 KB Output is correct
2 Correct 26 ms 56660 KB Output is correct
3 Correct 26 ms 56652 KB Output is correct
4 Correct 26 ms 56580 KB Output is correct
5 Correct 25 ms 56628 KB Output is correct
6 Correct 28 ms 56604 KB Output is correct
7 Correct 27 ms 56660 KB Output is correct
8 Correct 26 ms 56600 KB Output is correct
9 Correct 26 ms 56580 KB Output is correct
10 Correct 26 ms 56596 KB Output is correct
11 Correct 27 ms 56796 KB Output is correct
12 Correct 26 ms 56728 KB Output is correct
13 Correct 26 ms 56768 KB Output is correct
14 Correct 28 ms 56708 KB Output is correct
15 Correct 29 ms 56732 KB Output is correct
16 Correct 35 ms 57432 KB Output is correct
17 Correct 31 ms 57244 KB Output is correct
18 Correct 41 ms 57728 KB Output is correct
19 Correct 35 ms 57764 KB Output is correct
20 Correct 30 ms 57132 KB Output is correct
21 Correct 29 ms 57300 KB Output is correct
22 Correct 29 ms 57172 KB Output is correct
23 Correct 31 ms 57284 KB Output is correct
24 Correct 30 ms 57412 KB Output is correct
25 Correct 29 ms 56592 KB Output is correct
26 Correct 29 ms 56644 KB Output is correct
27 Correct 32 ms 57548 KB Output is correct
28 Correct 30 ms 57284 KB Output is correct
29 Correct 29 ms 57192 KB Output is correct
30 Correct 31 ms 57300 KB Output is correct
31 Correct 30 ms 57340 KB Output is correct

Subtask #5
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 56592 KB Output is correct
2 Correct 26 ms 56652 KB Output is correct
3 Correct 28 ms 56592 KB Output is correct
4 Correct 818 ms 149680 KB Output is correct
5 Correct 432 ms 109452 KB Output is correct
6 Correct 284 ms 95804 KB Output is correct
7 Correct 296 ms 92172 KB Output is correct
8 Correct 242 ms 113724 KB Output is correct
9 Correct 26 ms 56704 KB Output is correct
10 Correct 26 ms 56660 KB Output is correct
11 Correct 26 ms 56652 KB Output is correct
12 Correct 26 ms 56580 KB Output is correct
13 Correct 25 ms 56628 KB Output is correct
14 Correct 28 ms 56604 KB Output is correct
15 Correct 27 ms 56660 KB Output is correct
16 Correct 26 ms 56600 KB Output is correct
17 Correct 26 ms 56580 KB Output is correct
18 Correct 26 ms 56596 KB Output is correct
19 Correct 27 ms 56796 KB Output is correct
20 Correct 26 ms 56728 KB Output is correct
21 Correct 26 ms 56768 KB Output is correct
22 Correct 28 ms 56708 KB Output is correct
23 Correct 29 ms 56732 KB Output is correct
24 Correct 35 ms 57432 KB Output is correct
25 Correct 31 ms 57244 KB Output is correct
26 Correct 41 ms 57728 KB Output is correct
27 Correct 35 ms 57764 KB Output is correct
28 Correct 30 ms 57132 KB Output is correct
29 Correct 29 ms 57300 KB Output is correct
30 Correct 29 ms 57172 KB Output is correct
31 Correct 31 ms 57284 KB Output is correct
32 Correct 30 ms 57412 KB Output is correct
33 Correct 29 ms 56592 KB Output is correct
34 Correct 29 ms 56644 KB Output is correct
35 Correct 32 ms 57548 KB Output is correct
36 Correct 30 ms 57284 KB Output is correct
37 Correct 29 ms 57192 KB Output is correct
38 Correct 31 ms 57300 KB Output is correct
39 Correct 30 ms 57340 KB Output is correct
40 Correct 893 ms 151920 KB Output is correct
41 Correct 465 ms 110196 KB Output is correct
42 Correct 639 ms 166116 KB Output is correct
43 Correct 660 ms 165676 KB Output is correct
44 Correct 313 ms 96544 KB Output is correct
45 Correct 384 ms 110528 KB Output is correct
46 Correct 212 ms 75640 KB Output is correct
47 Correct 583 ms 114272 KB Output is correct
48 Correct 479 ms 128976 KB Output is correct