oj.uz

Submission #890426

# Submission time Handle Problem Language Result Execution time Memory
890426 2023-12-21T07:31:30 Z ttamx Passport (JOI23_passport) C++14
100 / 100
 1051 ms 120164 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<=5*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 8 ms 30296 KB Output is correct
2 Correct 6 ms 30300 KB Output is correct
3 Correct 7 ms 30152 KB Output is correct
4 Correct 1014 ms 112388 KB Output is correct
5 Correct 678 ms 83052 KB Output is correct
6 Correct 583 ms 77280 KB Output is correct
7 Correct 560 ms 84868 KB Output is correct
8 Correct 382 ms 79736 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 30312 KB Output is correct
2 Correct 6 ms 30320 KB Output is correct
3 Correct 6 ms 30300 KB Output is correct
4 Correct 7 ms 30304 KB Output is correct
5 Correct 7 ms 30300 KB Output is correct
6 Correct 6 ms 30312 KB Output is correct
7 Correct 6 ms 30300 KB Output is correct
8 Correct 6 ms 30300 KB Output is correct
9 Correct 7 ms 30316 KB Output is correct
10 Correct 6 ms 30300 KB Output is correct
11 Correct 7 ms 30300 KB Output is correct
12 Correct 7 ms 30300 KB Output is correct
13 Correct 7 ms 30300 KB Output is correct
14 Correct 7 ms 30300 KB Output is correct
15 Correct 7 ms 30172 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 30312 KB Output is correct
2 Correct 6 ms 30320 KB Output is correct
3 Correct 6 ms 30300 KB Output is correct
4 Correct 7 ms 30304 KB Output is correct
5 Correct 7 ms 30300 KB Output is correct
6 Correct 6 ms 30312 KB Output is correct
7 Correct 6 ms 30300 KB Output is correct
8 Correct 6 ms 30300 KB Output is correct
9 Correct 7 ms 30316 KB Output is correct
10 Correct 6 ms 30300 KB Output is correct
11 Correct 7 ms 30300 KB Output is correct
12 Correct 7 ms 30300 KB Output is correct
13 Correct 7 ms 30300 KB Output is correct
14 Correct 7 ms 30300 KB Output is correct
15 Correct 7 ms 30172 KB Output is correct
16 Correct 13 ms 31116 KB Output is correct
17 Correct 12 ms 30968 KB Output is correct
18 Correct 13 ms 31116 KB Output is correct
19 Correct 13 ms 31088 KB Output is correct
20 Correct 12 ms 30864 KB Output is correct
21 Correct 12 ms 30868 KB Output is correct
22 Correct 10 ms 30852 KB Output is correct
23 Correct 12 ms 30940 KB Output is correct
24 Correct 11 ms 30960 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 30312 KB Output is correct
2 Correct 6 ms 30320 KB Output is correct
3 Correct 6 ms 30300 KB Output is correct
4 Correct 7 ms 30304 KB Output is correct
5 Correct 7 ms 30300 KB Output is correct
6 Correct 6 ms 30312 KB Output is correct
7 Correct 6 ms 30300 KB Output is correct
8 Correct 6 ms 30300 KB Output is correct
9 Correct 7 ms 30316 KB Output is correct
10 Correct 6 ms 30300 KB Output is correct
11 Correct 7 ms 30300 KB Output is correct
12 Correct 7 ms 30300 KB Output is correct
13 Correct 7 ms 30300 KB Output is correct
14 Correct 7 ms 30300 KB Output is correct
15 Correct 7 ms 30172 KB Output is correct
16 Correct 13 ms 31116 KB Output is correct
17 Correct 12 ms 30968 KB Output is correct
18 Correct 13 ms 31116 KB Output is correct
19 Correct 13 ms 31088 KB Output is correct
20 Correct 12 ms 30864 KB Output is correct
21 Correct 12 ms 30868 KB Output is correct
22 Correct 10 ms 30852 KB Output is correct
23 Correct 12 ms 30940 KB Output is correct
24 Correct 11 ms 30960 KB Output is correct
25 Correct 6 ms 30300 KB Output is correct
26 Correct 6 ms 30332 KB Output is correct
27 Correct 13 ms 31068 KB Output is correct
28 Correct 14 ms 30968 KB Output is correct
29 Correct 12 ms 30868 KB Output is correct
30 Correct 12 ms 30868 KB Output is correct
31 Correct 12 ms 30888 KB Output is correct

Subtask #5
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 30296 KB Output is correct
2 Correct 6 ms 30300 KB Output is correct
3 Correct 7 ms 30152 KB Output is correct
4 Correct 1014 ms 112388 KB Output is correct
5 Correct 678 ms 83052 KB Output is correct
6 Correct 583 ms 77280 KB Output is correct
7 Correct 560 ms 84868 KB Output is correct
8 Correct 382 ms 79736 KB Output is correct
9 Correct 6 ms 30312 KB Output is correct
10 Correct 6 ms 30320 KB Output is correct
11 Correct 6 ms 30300 KB Output is correct
12 Correct 7 ms 30304 KB Output is correct
13 Correct 7 ms 30300 KB Output is correct
14 Correct 6 ms 30312 KB Output is correct
15 Correct 6 ms 30300 KB Output is correct
16 Correct 6 ms 30300 KB Output is correct
17 Correct 7 ms 30316 KB Output is correct
18 Correct 6 ms 30300 KB Output is correct
19 Correct 7 ms 30300 KB Output is correct
20 Correct 7 ms 30300 KB Output is correct
21 Correct 7 ms 30300 KB Output is correct
22 Correct 7 ms 30300 KB Output is correct
23 Correct 7 ms 30172 KB Output is correct
24 Correct 13 ms 31116 KB Output is correct
25 Correct 12 ms 30968 KB Output is correct
26 Correct 13 ms 31116 KB Output is correct
27 Correct 13 ms 31088 KB Output is correct
28 Correct 12 ms 30864 KB Output is correct
29 Correct 12 ms 30868 KB Output is correct
30 Correct 10 ms 30852 KB Output is correct
31 Correct 12 ms 30940 KB Output is correct
32 Correct 11 ms 30960 KB Output is correct
33 Correct 6 ms 30300 KB Output is correct
34 Correct 6 ms 30332 KB Output is correct
35 Correct 13 ms 31068 KB Output is correct
36 Correct 14 ms 30968 KB Output is correct
37 Correct 12 ms 30868 KB Output is correct
38 Correct 12 ms 30868 KB Output is correct
39 Correct 12 ms 30888 KB Output is correct
40 Correct 1051 ms 113400 KB Output is correct
41 Correct 703 ms 83980 KB Output is correct
42 Correct 781 ms 110464 KB Output is correct
43 Correct 764 ms 120164 KB Output is correct
44 Correct 605 ms 77204 KB Output is correct
45 Correct 634 ms 85404 KB Output is correct
46 Correct 254 ms 53572 KB Output is correct
47 Correct 781 ms 96064 KB Output is correct
48 Correct 652 ms 104424 KB Output is correct