oj.uz

Submission #1012513

# Submission time Handle Problem Language Result Execution time Memory
1012513 2024-07-02T09:16:02 Z Pacybwoah Passport (JOI23_passport) C++17
100 / 100
 773 ms 150908 KB 
#include<iostream>
#include<vector>
#include<algorithm>
#include<queue>
#define int ll
using namespace std;
typedef long long ll;
vector<vector<pair<int,ll> > > graph;
vector<int> pos;
void build(int l,int r,int ind){
    if(l==r){
        pos[l]=ind;
        return;
    }
    int mid=(l+r)>>1;
    build(l,mid,ind*2);
    build(mid+1,r,ind*2+1);
    graph[ind*2].push_back(make_pair(ind,0));
    graph[ind*2+1].push_back(make_pair(ind,0));
}
void modify(int l,int r,int start,int end,int s,ll num,int ind){
    if(r<start||end<l) return;
    if(start<=l&&r<=end){
        graph[ind].push_back(make_pair(s,num));
        return;
    }
    int mid=(l+r)>>1;
    modify(l,mid,start,end,s,num,ind*2);
    modify(mid+1,r,start,end,s,num,ind*2+1);
}
signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n,m;
    cin>>n;
    m = n;
    graph.resize(4*n+4+m);
    pos.resize(n+1);
    build(1,n,1);
    int a,b;
    for(int i=0;i<m;i++){
        cin>>a>>b;
        modify(1,n,a,b,4*n+4+i,0,1);
        graph[4*n+4+i].push_back(make_pair(pos[i + 1],1));
    }
    priority_queue<pair<ll,int>,vector<pair<ll,int> >,greater<pair<ll,int> > > pq;
    vector<ll> dist1(4*n+4+m,1e18),distn(4*n+4+m,1e18);
    auto dijk=[&](vector<ll> &dist){
        while(!pq.empty()){
            auto [d,node]=pq.top();
            pq.pop();
            //cout<<d<<'\n';
            if(d!=dist[node]) continue;
            for(auto &[x,l]:graph[node]){
                if(dist[x]>d+l){
                    dist[x]=d+l;
                    pq.push(make_pair(dist[x],x));
                }
            }
        }
    };
    pq.push(make_pair(0,pos[1]));
    dist1[pos[1]]=0;
    dijk(dist1);
    //for(int i=4*n+4;i<4*n+4+m;i++) cout<<dist1[i]<<' ';
    //cout<<"\n";
    //for(int i=1;i<=n;i++) cout<<dist1[pos[i]]<<' ';
    pq.push(make_pair(0,pos[n]));
    distn[pos[n]]=0;
    dijk(distn);
    vector<ll> dist(4*n+4+m,1e18);
    for(int i=1;i<=4*n+3+m;i++) dist[i]=min(dist[i],dist1[i]+distn[i]);
    for(int i=1;i<=4*n+3+m;i++) if(dist[i]<1e18) pq.push(make_pair(dist[i],i));
    dijk(dist);
    int q;
    cin >> q;
    while(q--){
        int i;
        cin >> i;
        if(dist[pos[i]]>=1e18) cout<<"-1\n";
        else cout<<dist[pos[i]]<<"\n";
    }
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 688 ms 142068 KB Output is correct
5 Correct 423 ms 105168 KB Output is correct
6 Correct 217 ms 96616 KB Output is correct
7 Correct 254 ms 87400 KB Output is correct
8 Correct 119 ms 78336 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 348 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 1884 KB Output is correct
17 Correct 5 ms 1628 KB Output is correct
18 Correct 4 ms 2140 KB Output is correct
19 Correct 4 ms 1940 KB Output is correct
20 Correct 3 ms 1620 KB Output is correct
21 Correct 2 ms 1624 KB Output is correct
22 Correct 2 ms 1368 KB Output is correct
23 Correct 4 ms 1744 KB Output is correct
24 Correct 2 ms 1628 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 1884 KB Output is correct
17 Correct 5 ms 1628 KB Output is correct
18 Correct 4 ms 2140 KB Output is correct
19 Correct 4 ms 1940 KB Output is correct
20 Correct 3 ms 1620 KB Output is correct
21 Correct 2 ms 1624 KB Output is correct
22 Correct 2 ms 1368 KB Output is correct
23 Correct 4 ms 1744 KB Output is correct
24 Correct 2 ms 1628 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 5 ms 1748 KB Output is correct
28 Correct 4 ms 1708 KB Output is correct
29 Correct 2 ms 1628 KB Output is correct
30 Correct 2 ms 1628 KB Output is correct
31 Correct 4 ms 1556 KB Output is correct

Subtask #5
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 688 ms 142068 KB Output is correct
5 Correct 423 ms 105168 KB Output is correct
6 Correct 217 ms 96616 KB Output is correct
7 Correct 254 ms 87400 KB Output is correct
8 Correct 119 ms 78336 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 600 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 4 ms 1884 KB Output is correct
25 Correct 5 ms 1628 KB Output is correct
26 Correct 4 ms 2140 KB Output is correct
27 Correct 4 ms 1940 KB Output is correct
28 Correct 3 ms 1620 KB Output is correct
29 Correct 2 ms 1624 KB Output is correct
30 Correct 2 ms 1368 KB Output is correct
31 Correct 4 ms 1744 KB Output is correct
32 Correct 2 ms 1628 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 5 ms 1748 KB Output is correct
36 Correct 4 ms 1708 KB Output is correct
37 Correct 2 ms 1628 KB Output is correct
38 Correct 2 ms 1628 KB Output is correct
39 Correct 4 ms 1556 KB Output is correct
40 Correct 773 ms 142764 KB Output is correct
41 Correct 413 ms 106176 KB Output is correct
42 Correct 479 ms 150908 KB Output is correct
43 Correct 482 ms 150900 KB Output is correct
44 Correct 230 ms 96704 KB Output is correct
45 Correct 279 ms 100972 KB Output is correct
46 Correct 132 ms 38744 KB Output is correct
47 Correct 478 ms 110220 KB Output is correct
48 Correct 286 ms 114712 KB Output is correct