oj.uz

Submission #881325

# Submission time Handle Problem Language Result Execution time Memory
881325 2023-12-01T06:47:28 Z ttamx Passport (JOI23_passport) C++14
100 / 100
 1043 ms 119680 KB 
#include<bits/stdc++.h>

using namespace std;

typedef pair<int,int> p2;

const int N=2e5+5;
const int M=5*N;
const int inf=1e9;

int n,q;
vector<p2> adj[M];
int dist[3][M];
bool vis[M];

void link(int u,int v,int w=0){
    adj[v].emplace_back(u,w);
}

void build(int l,int r,int i){
    if(l==r)return void(link(n+i,l));
    int m=(l+r)/2;
    build(l,m,i*2);
    build(m+1,r,i*2+1);
    link(n+i,n+i*2);
    link(n+i,n+i*2+1);
}

void connect(int l,int r,int i,int x,int y,int u){
    if(y<l||r<x)return;
    if(x<=l&&r<=y)return void(link(u,n+i,1));
    int m=(l+r)/2;
    connect(l,m,i*2,x,y,u);
    connect(m+1,r,i*2+1,x,y,u);
}

void dijk(int *dist){
    priority_queue<p2,vector<p2>,greater<p2>> pq;
    for(int i=1;i<=5*n;i++)pq.emplace(dist[i],i),vis[i]=false;
    while(!pq.empty()){
        auto [d,u]=pq.top();
        pq.pop();
        if(vis[u])continue;
        vis[u]=true;
        for(auto [v,w]:adj[u])if(d+w<dist[v]){
            pq.emplace(d+w,v);
            dist[v]=d+w;
        }
    }
}

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n;
    build(1,n,1);
    for(int i=1;i<=n;i++){
        int l,r;
        cin >> l >> r;
        connect(1,n,1,l,r,i);
    }
    for(int i=0;i<3;i++)for(int j=1;j<=5*n;j++)dist[i][j]=inf;
    dist[0][1]=dist[1][n]=0;
    dijk(dist[0]);
    dijk(dist[1]);
    for(int i=1;i<=n;i++)dist[2][i]=min(inf,dist[0][i]+dist[1][i]-(1<i&&i<n));
    dijk(dist[2]);
    cin >> q;
    while(q--){
        int x;
        cin >> x;
        cout << (dist[2][x]<inf?dist[2][x]:-1) << "\n";
    }
}

Compilation message

passport.cpp: In function 'void dijk(int*)':
passport.cpp:41:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   41 |         auto [d,u]=pq.top();
      |              ^
passport.cpp:45:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   45 |         for(auto [v,w]:adj[u])if(d+w<dist[v]){
      |                  ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 30296 KB Output is correct
2 Correct 6 ms 30300 KB Output is correct
3 Correct 7 ms 30300 KB Output is correct
4 Correct 1031 ms 111088 KB Output is correct
5 Correct 678 ms 82984 KB Output is correct
6 Correct 604 ms 77100 KB Output is correct
7 Correct 568 ms 84384 KB Output is correct
8 Correct 386 ms 80176 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 30300 KB Output is correct
2 Correct 6 ms 30152 KB Output is correct
3 Correct 6 ms 30300 KB Output is correct
4 Correct 7 ms 30300 KB Output is correct
5 Correct 6 ms 30300 KB Output is correct
6 Correct 7 ms 30300 KB Output is correct
7 Correct 7 ms 30552 KB Output is correct
8 Correct 6 ms 30316 KB Output is correct
9 Correct 7 ms 30300 KB Output is correct
10 Correct 6 ms 30300 KB Output is correct
11 Correct 8 ms 30300 KB Output is correct
12 Correct 8 ms 30300 KB Output is correct
13 Correct 8 ms 30196 KB Output is correct
14 Correct 7 ms 30300 KB Output is correct
15 Correct 6 ms 30400 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 30300 KB Output is correct
2 Correct 6 ms 30152 KB Output is correct
3 Correct 6 ms 30300 KB Output is correct
4 Correct 7 ms 30300 KB Output is correct
5 Correct 6 ms 30300 KB Output is correct
6 Correct 7 ms 30300 KB Output is correct
7 Correct 7 ms 30552 KB Output is correct
8 Correct 6 ms 30316 KB Output is correct
9 Correct 7 ms 30300 KB Output is correct
10 Correct 6 ms 30300 KB Output is correct
11 Correct 8 ms 30300 KB Output is correct
12 Correct 8 ms 30300 KB Output is correct
13 Correct 8 ms 30196 KB Output is correct
14 Correct 7 ms 30300 KB Output is correct
15 Correct 6 ms 30400 KB Output is correct
16 Correct 13 ms 30964 KB Output is correct
17 Correct 13 ms 30868 KB Output is correct
18 Correct 13 ms 31116 KB Output is correct
19 Correct 13 ms 31168 KB Output is correct
20 Correct 11 ms 30812 KB Output is correct
21 Correct 11 ms 30916 KB Output is correct
22 Correct 13 ms 30840 KB Output is correct
23 Correct 12 ms 30956 KB Output is correct
24 Correct 11 ms 30956 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 30300 KB Output is correct
2 Correct 6 ms 30152 KB Output is correct
3 Correct 6 ms 30300 KB Output is correct
4 Correct 7 ms 30300 KB Output is correct
5 Correct 6 ms 30300 KB Output is correct
6 Correct 7 ms 30300 KB Output is correct
7 Correct 7 ms 30552 KB Output is correct
8 Correct 6 ms 30316 KB Output is correct
9 Correct 7 ms 30300 KB Output is correct
10 Correct 6 ms 30300 KB Output is correct
11 Correct 8 ms 30300 KB Output is correct
12 Correct 8 ms 30300 KB Output is correct
13 Correct 8 ms 30196 KB Output is correct
14 Correct 7 ms 30300 KB Output is correct
15 Correct 6 ms 30400 KB Output is correct
16 Correct 13 ms 30964 KB Output is correct
17 Correct 13 ms 30868 KB Output is correct
18 Correct 13 ms 31116 KB Output is correct
19 Correct 13 ms 31168 KB Output is correct
20 Correct 11 ms 30812 KB Output is correct
21 Correct 11 ms 30916 KB Output is correct
22 Correct 13 ms 30840 KB Output is correct
23 Correct 12 ms 30956 KB Output is correct
24 Correct 11 ms 30956 KB Output is correct
25 Correct 6 ms 30296 KB Output is correct
26 Correct 7 ms 30300 KB Output is correct
27 Correct 13 ms 30960 KB Output is correct
28 Correct 14 ms 30868 KB Output is correct
29 Correct 12 ms 30860 KB Output is correct
30 Correct 14 ms 30868 KB Output is correct
31 Correct 12 ms 30856 KB Output is correct

Subtask #5
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 30296 KB Output is correct
2 Correct 6 ms 30300 KB Output is correct
3 Correct 7 ms 30300 KB Output is correct
4 Correct 1031 ms 111088 KB Output is correct
5 Correct 678 ms 82984 KB Output is correct
6 Correct 604 ms 77100 KB Output is correct
7 Correct 568 ms 84384 KB Output is correct
8 Correct 386 ms 80176 KB Output is correct
9 Correct 6 ms 30300 KB Output is correct
10 Correct 6 ms 30152 KB Output is correct
11 Correct 6 ms 30300 KB Output is correct
12 Correct 7 ms 30300 KB Output is correct
13 Correct 6 ms 30300 KB Output is correct
14 Correct 7 ms 30300 KB Output is correct
15 Correct 7 ms 30552 KB Output is correct
16 Correct 6 ms 30316 KB Output is correct
17 Correct 7 ms 30300 KB Output is correct
18 Correct 6 ms 30300 KB Output is correct
19 Correct 8 ms 30300 KB Output is correct
20 Correct 8 ms 30300 KB Output is correct
21 Correct 8 ms 30196 KB Output is correct
22 Correct 7 ms 30300 KB Output is correct
23 Correct 6 ms 30400 KB Output is correct
24 Correct 13 ms 30964 KB Output is correct
25 Correct 13 ms 30868 KB Output is correct
26 Correct 13 ms 31116 KB Output is correct
27 Correct 13 ms 31168 KB Output is correct
28 Correct 11 ms 30812 KB Output is correct
29 Correct 11 ms 30916 KB Output is correct
30 Correct 13 ms 30840 KB Output is correct
31 Correct 12 ms 30956 KB Output is correct
32 Correct 11 ms 30956 KB Output is correct
33 Correct 6 ms 30296 KB Output is correct
34 Correct 7 ms 30300 KB Output is correct
35 Correct 13 ms 30960 KB Output is correct
36 Correct 14 ms 30868 KB Output is correct
37 Correct 12 ms 30860 KB Output is correct
38 Correct 14 ms 30868 KB Output is correct
39 Correct 12 ms 30856 KB Output is correct
40 Correct 1043 ms 114332 KB Output is correct
41 Correct 715 ms 83492 KB Output is correct
42 Correct 759 ms 110136 KB Output is correct
43 Correct 754 ms 119680 KB Output is correct
44 Correct 664 ms 77508 KB Output is correct
45 Correct 629 ms 84988 KB Output is correct
46 Correct 260 ms 53460 KB Output is correct
47 Correct 765 ms 96012 KB Output is correct
48 Correct 680 ms 102656 KB Output is correct