oj.uz

답안 #944794

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
944794 2024-03-13T05:00:07 Z phoenix0423 Passport (JOI23_passport) C++17
100 / 100
 743 ms 128780 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0);
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#define int long long
#define lowbit(x) x&-x
const int maxn = 2e5 + 5;
const int INF = 1e9 + 7;
int l[maxn], r[maxn], ans[maxn];
int d0[maxn], d1[maxn];
vector<pll> adj[maxn * 4];
int idx[maxn];
int n;

void build(int v = 1, int l = 0, int r = n - 1){
    if(l == r){
        idx[l] = v;
        return;
    }
    int m = (l + r) / 2;
    adj[v * 2].eb(v, 0);
    adj[v * 2 + 1].eb(v, 0);
    build(v * 2, l, m);
    build(v * 2 + 1, m + 1, r);
}

void add(int id, int l, int r, int v = 1, int L = 0, int R = n - 1){
    if(l > R || r < L) return;
    if(l <= L && r >= R){
        if(idx[id] != v) adj[v].eb(idx[id], 1);
        return;
    }
    int m = (L + R) / 2;
    add(id, l, r, v * 2, L, m);
    add(id, l, r, v * 2 + 1, m + 1, R);
}

vector<int> dijkstra(int st){
    vector<int> dist(n * 4, INF);
    dist[st] = 0;
    priority_queue<pll, vector<pll>, greater<pll>> q;
    q.push({0, st});
    while(!q.empty()){
        auto [d, pos] = q.top(); q.pop();
        if(dist[pos] != d) continue;
        for(auto [x, w] : adj[pos]){
            if(dist[x] > dist[pos] + w){
                dist[x] = dist[pos] + w;
                q.push({dist[x], x});
            }
        }
    }
    dist[st] = 1;
    return dist;
}

signed main(void){
    fastio;
    cin>>n; 
    build();
    for(int i = 0; i < n; i++){
        cin>>l[i]>>r[i];
        l[i] --, r[i] --;
        add(i, l[i], r[i]);
    }
    auto dist = dijkstra(idx[0]), d1 = dijkstra(idx[n - 1]);
    for(int i = 0; i < n * 4; i++){
        dist[i] += d1[i];
    }
    for(int i = 0; i < n; i++) dist[idx[i]] --;
    priority_queue<pll, vector<pll>, greater<pll>> q;
    for(int i = 0; i < n; i++) q.push({dist[idx[i]], idx[i]});
    while(!q.empty()){
        auto [d, pos] = q.top(); q.pop();
        if(dist[pos] != d) continue;
        for(auto [x, w] : adj[pos]){
            if(dist[x] > dist[pos] + w){
                dist[x] = dist[pos] + w;
                q.push({dist[x], x});
            }
        }
    }
    int Q;
    cin>>Q;
    for(int i = 0; i < Q; i++){
        int x;
        cin>>x;
        x = idx[x - 1];
        cout<<(dist[x] <= n ? dist[x] : -1)<<"\n";
    }
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 22876 KB Output is correct
2 Correct 5 ms 22992 KB Output is correct
3 Correct 5 ms 23128 KB Output is correct
4 Correct 743 ms 116988 KB Output is correct
5 Correct 323 ms 73932 KB Output is correct
6 Correct 153 ms 63084 KB Output is correct
7 Correct 180 ms 60740 KB Output is correct
8 Correct 149 ms 75032 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 4 ms 22876 KB Output is correct
3 Correct 4 ms 22876 KB Output is correct
4 Correct 4 ms 22876 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 5 ms 22876 KB Output is correct
7 Correct 5 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 4 ms 22976 KB Output is correct
11 Correct 5 ms 22876 KB Output is correct
12 Correct 6 ms 23132 KB Output is correct
13 Correct 5 ms 23132 KB Output is correct
14 Correct 5 ms 23132 KB Output is correct
15 Correct 5 ms 22888 KB Output is correct

Subtask #3
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 4 ms 22876 KB Output is correct
3 Correct 4 ms 22876 KB Output is correct
4 Correct 4 ms 22876 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 5 ms 22876 KB Output is correct
7 Correct 5 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 4 ms 22976 KB Output is correct
11 Correct 5 ms 22876 KB Output is correct
12 Correct 6 ms 23132 KB Output is correct
13 Correct 5 ms 23132 KB Output is correct
14 Correct 5 ms 23132 KB Output is correct
15 Correct 5 ms 22888 KB Output is correct
16 Correct 8 ms 23644 KB Output is correct
17 Correct 9 ms 23644 KB Output is correct
18 Correct 9 ms 24152 KB Output is correct
19 Correct 8 ms 23924 KB Output is correct
20 Correct 6 ms 23388 KB Output is correct
21 Correct 7 ms 23644 KB Output is correct
22 Correct 6 ms 23388 KB Output is correct
23 Correct 8 ms 23644 KB Output is correct
24 Correct 7 ms 23820 KB Output is correct

Subtask #4
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 4 ms 22876 KB Output is correct
3 Correct 4 ms 22876 KB Output is correct
4 Correct 4 ms 22876 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 5 ms 22876 KB Output is correct
7 Correct 5 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 4 ms 22876 KB Output is correct
10 Correct 4 ms 22976 KB Output is correct
11 Correct 5 ms 22876 KB Output is correct
12 Correct 6 ms 23132 KB Output is correct
13 Correct 5 ms 23132 KB Output is correct
14 Correct 5 ms 23132 KB Output is correct
15 Correct 5 ms 22888 KB Output is correct
16 Correct 8 ms 23644 KB Output is correct
17 Correct 9 ms 23644 KB Output is correct
18 Correct 9 ms 24152 KB Output is correct
19 Correct 8 ms 23924 KB Output is correct
20 Correct 6 ms 23388 KB Output is correct
21 Correct 7 ms 23644 KB Output is correct
22 Correct 6 ms 23388 KB Output is correct
23 Correct 8 ms 23644 KB Output is correct
24 Correct 7 ms 23820 KB Output is correct
25 Correct 5 ms 22876 KB Output is correct
26 Correct 5 ms 22876 KB Output is correct
27 Correct 9 ms 23736 KB Output is correct
28 Correct 8 ms 23644 KB Output is correct
29 Correct 7 ms 23388 KB Output is correct
30 Correct 7 ms 23644 KB Output is correct
31 Correct 7 ms 23640 KB Output is correct

Subtask #5
46.0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 22876 KB Output is correct
2 Correct 5 ms 22992 KB Output is correct
3 Correct 5 ms 23128 KB Output is correct
4 Correct 743 ms 116988 KB Output is correct
5 Correct 323 ms 73932 KB Output is correct
6 Correct 153 ms 63084 KB Output is correct
7 Correct 180 ms 60740 KB Output is correct
8 Correct 149 ms 75032 KB Output is correct
9 Correct 5 ms 22876 KB Output is correct
10 Correct 4 ms 22876 KB Output is correct
11 Correct 4 ms 22876 KB Output is correct
12 Correct 4 ms 22876 KB Output is correct
13 Correct 4 ms 22876 KB Output is correct
14 Correct 5 ms 22876 KB Output is correct
15 Correct 5 ms 22876 KB Output is correct
16 Correct 4 ms 22876 KB Output is correct
17 Correct 4 ms 22876 KB Output is correct
18 Correct 4 ms 22976 KB Output is correct
19 Correct 5 ms 22876 KB Output is correct
20 Correct 6 ms 23132 KB Output is correct
21 Correct 5 ms 23132 KB Output is correct
22 Correct 5 ms 23132 KB Output is correct
23 Correct 5 ms 22888 KB Output is correct
24 Correct 8 ms 23644 KB Output is correct
25 Correct 9 ms 23644 KB Output is correct
26 Correct 9 ms 24152 KB Output is correct
27 Correct 8 ms 23924 KB Output is correct
28 Correct 6 ms 23388 KB Output is correct
29 Correct 7 ms 23644 KB Output is correct
30 Correct 6 ms 23388 KB Output is correct
31 Correct 8 ms 23644 KB Output is correct
32 Correct 7 ms 23820 KB Output is correct
33 Correct 5 ms 22876 KB Output is correct
34 Correct 5 ms 22876 KB Output is correct
35 Correct 9 ms 23736 KB Output is correct
36 Correct 8 ms 23644 KB Output is correct
37 Correct 7 ms 23388 KB Output is correct
38 Correct 7 ms 23644 KB Output is correct
39 Correct 7 ms 23640 KB Output is correct
40 Correct 725 ms 123316 KB Output is correct
41 Correct 308 ms 76464 KB Output is correct
42 Correct 443 ms 127924 KB Output is correct
43 Correct 450 ms 128780 KB Output is correct
44 Correct 186 ms 63684 KB Output is correct
45 Correct 249 ms 78120 KB Output is correct
46 Correct 129 ms 42488 KB Output is correct
47 Correct 432 ms 84160 KB Output is correct
48 Correct 341 ms 96888 KB Output is correct