oj.uz

답안 #890432

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
890432 2023-12-21T08:24:34 Z alexander707070 Passport (JOI23_passport) C++14
48 / 100
 790 ms 142324 KB 
#include<bits/stdc++.h>
#define MAXN 1000007
using namespace std;

const long long inf=1e15;

int n,q,x,minv;
int l[MAXN],r[MAXN];
vector< pair<int,long long> > g[MAXN];

long long dist[MAXN],cost[MAXN];
bool li[MAXN];

priority_queue< pair<long long,int> , vector< pair<long long,int> > , greater< pair<long long,int> > > pq;

void dijkstra(int x){
    for(int i=1;i<=5*n+10;i++){
        li[i]=false; dist[i]=inf;
    }

    pq.push({0,x});
    dist[x]=0;

    while(!pq.empty()){
        minv=pq.top().second;
        pq.pop();

        if(li[minv])continue;
        li[minv]=true;

        for(int i=0;i<g[minv].size();i++){
            if(li[g[minv][i].first] or dist[g[minv][i].first]<=dist[minv]+g[minv][i].second)continue;

            dist[g[minv][i].first]=dist[minv]+g[minv][i].second;
            pq.push({dist[g[minv][i].first],g[minv][i].first});
        }
    }
}

void build(int t,int l,int r){
    if(l==r){
        g[l+4*n].push_back({t,0});
    }else{
        int tt=(l+r)/2;

        g[2*t].push_back({t,0});
        build(2*t,l,tt);

        g[2*t+1].push_back({t,0});
        build(2*t+1,tt+1,r);
    }
}

void update(int t,int l,int r,int ll,int rr,int root){
    if(ll>rr)return;
    if(l==ll and r==rr){
        g[t].push_back({root,1});
    }else{
        int tt=(l+r)/2;
        update(2*t,l,tt,ll,min(tt,rr),root);
        update(2*t+1,tt+1,r,max(tt+1,ll),rr,root);
    }
}

int main(){

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>l[i]>>r[i];
    }

    build(1,1,n);

    for(int i=1;i<=n;i++){
        update(1,1,n,l[i],r[i],i+4*n);
    }

    dijkstra(4*n+1); dist[4*n+1]=1;
    for(int i=1;i<=n;i++){
        cost[i]+=dist[4*n+i];
    }

    dijkstra(4*n+n); dist[4*n+n]=1;
    for(int i=1;i<=n;i++){
        cost[i]+=dist[4*n+i];
    }

    for(int i=1;i<=n;i++){
        g[5*n+1].push_back({i+4*n,cost[i]});
    }
    dijkstra(5*n+1);

    cin>>q;
    for(int i=1;i<=q;i++){
        cin>>x;
        if(dist[4*n+x]==inf)cout<<"-1\n";
        else cout<<dist[4*n+x]-1<<"\n";
    }

    return 0;
}

Compilation message

passport.cpp: In function 'void dijkstra(int)':
passport.cpp:31:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |         for(int i=0;i<g[minv].size();i++){
      |                     ~^~~~~~~~~~~~~~~

Subtask #1
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 31064 KB Output is correct
2 Correct 6 ms 31068 KB Output is correct
3 Correct 6 ms 31064 KB Output is correct
4 Correct 790 ms 126228 KB Output is correct
5 Correct 369 ms 89284 KB Output is correct
6 Runtime error 270 ms 142324 KB Execution killed with signal 11
7 Halted 0 ms 0 KB -

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 31068 KB Output is correct
2 Correct 6 ms 31068 KB Output is correct
3 Correct 6 ms 31068 KB Output is correct
4 Correct 6 ms 31068 KB Output is correct
5 Correct 6 ms 31068 KB Output is correct
6 Correct 6 ms 31068 KB Output is correct
7 Correct 6 ms 31068 KB Output is correct
8 Correct 6 ms 31064 KB Output is correct
9 Correct 6 ms 31068 KB Output is correct
10 Correct 6 ms 31068 KB Output is correct
11 Correct 6 ms 31324 KB Output is correct
12 Correct 6 ms 31192 KB Output is correct
13 Correct 7 ms 31324 KB Output is correct
14 Correct 7 ms 31324 KB Output is correct
15 Correct 6 ms 31316 KB Output is correct

Subtask #3
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 31068 KB Output is correct
2 Correct 6 ms 31068 KB Output is correct
3 Correct 6 ms 31068 KB Output is correct
4 Correct 6 ms 31068 KB Output is correct
5 Correct 6 ms 31068 KB Output is correct
6 Correct 6 ms 31068 KB Output is correct
7 Correct 6 ms 31068 KB Output is correct
8 Correct 6 ms 31064 KB Output is correct
9 Correct 6 ms 31068 KB Output is correct
10 Correct 6 ms 31068 KB Output is correct
11 Correct 6 ms 31324 KB Output is correct
12 Correct 6 ms 31192 KB Output is correct
13 Correct 7 ms 31324 KB Output is correct
14 Correct 7 ms 31324 KB Output is correct
15 Correct 6 ms 31316 KB Output is correct
16 Correct 10 ms 32092 KB Output is correct
17 Correct 10 ms 31832 KB Output is correct
18 Correct 10 ms 32092 KB Output is correct
19 Correct 12 ms 32276 KB Output is correct
20 Correct 9 ms 31576 KB Output is correct
21 Correct 8 ms 31864 KB Output is correct
22 Correct 9 ms 31812 KB Output is correct
23 Correct 10 ms 31836 KB Output is correct
24 Correct 8 ms 31836 KB Output is correct

Subtask #4
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 31068 KB Output is correct
2 Correct 6 ms 31068 KB Output is correct
3 Correct 6 ms 31068 KB Output is correct
4 Correct 6 ms 31068 KB Output is correct
5 Correct 6 ms 31068 KB Output is correct
6 Correct 6 ms 31068 KB Output is correct
7 Correct 6 ms 31068 KB Output is correct
8 Correct 6 ms 31064 KB Output is correct
9 Correct 6 ms 31068 KB Output is correct
10 Correct 6 ms 31068 KB Output is correct
11 Correct 6 ms 31324 KB Output is correct
12 Correct 6 ms 31192 KB Output is correct
13 Correct 7 ms 31324 KB Output is correct
14 Correct 7 ms 31324 KB Output is correct
15 Correct 6 ms 31316 KB Output is correct
16 Correct 10 ms 32092 KB Output is correct
17 Correct 10 ms 31832 KB Output is correct
18 Correct 10 ms 32092 KB Output is correct
19 Correct 12 ms 32276 KB Output is correct
20 Correct 9 ms 31576 KB Output is correct
21 Correct 8 ms 31864 KB Output is correct
22 Correct 9 ms 31812 KB Output is correct
23 Correct 10 ms 31836 KB Output is correct
24 Correct 8 ms 31836 KB Output is correct
25 Correct 6 ms 31068 KB Output is correct
26 Correct 6 ms 31068 KB Output is correct
27 Correct 11 ms 32092 KB Output is correct
28 Correct 10 ms 31836 KB Output is correct
29 Correct 9 ms 31580 KB Output is correct
30 Correct 9 ms 31748 KB Output is correct
31 Correct 10 ms 31832 KB Output is correct

Subtask #5
0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 31064 KB Output is correct
2 Correct 6 ms 31068 KB Output is correct
3 Correct 6 ms 31064 KB Output is correct
4 Correct 790 ms 126228 KB Output is correct
5 Correct 369 ms 89284 KB Output is correct
6 Runtime error 270 ms 142324 KB Execution killed with signal 11
7 Halted 0 ms 0 KB -