oj.uz

답안 #903986

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
903986 2024-01-11T16:05:08 Z Trisanu_Das Passport (JOI23_passport) C++17
100 / 100
 1109 ms 122632 KB 
#include<bits/stdc++.h>
using namespace std;

const int N = 2e5 + 5, M = 5 * N, inf = 1e9;
int n, q, dist[3][M];
vector<pair<int, int> > adj[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<pair<int, int>, vector<pair<int, int> >, greater<pair<int, int> > > 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";
    }
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 29020 KB Output is correct
2 Correct 6 ms 29016 KB Output is correct
3 Correct 6 ms 29136 KB Output is correct
4 Correct 1104 ms 112112 KB Output is correct
5 Correct 689 ms 83140 KB Output is correct
6 Correct 631 ms 77080 KB Output is correct
7 Correct 598 ms 83712 KB Output is correct
8 Correct 411 ms 78668 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 29132 KB Output is correct
2 Correct 6 ms 29020 KB Output is correct
3 Correct 6 ms 29016 KB Output is correct
4 Correct 6 ms 29016 KB Output is correct
5 Correct 7 ms 29020 KB Output is correct
6 Correct 6 ms 29020 KB Output is correct
7 Correct 7 ms 29016 KB Output is correct
8 Correct 7 ms 29020 KB Output is correct
9 Correct 6 ms 29188 KB Output is correct
10 Correct 6 ms 29020 KB Output is correct
11 Correct 7 ms 29276 KB Output is correct
12 Correct 7 ms 29120 KB Output is correct
13 Correct 8 ms 29276 KB Output is correct
14 Correct 7 ms 29276 KB Output is correct
15 Correct 6 ms 29020 KB Output is correct

Subtask #3
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 29132 KB Output is correct
2 Correct 6 ms 29020 KB Output is correct
3 Correct 6 ms 29016 KB Output is correct
4 Correct 6 ms 29016 KB Output is correct
5 Correct 7 ms 29020 KB Output is correct
6 Correct 6 ms 29020 KB Output is correct
7 Correct 7 ms 29016 KB Output is correct
8 Correct 7 ms 29020 KB Output is correct
9 Correct 6 ms 29188 KB Output is correct
10 Correct 6 ms 29020 KB Output is correct
11 Correct 7 ms 29276 KB Output is correct
12 Correct 7 ms 29120 KB Output is correct
13 Correct 8 ms 29276 KB Output is correct
14 Correct 7 ms 29276 KB Output is correct
15 Correct 6 ms 29020 KB Output is correct
16 Correct 13 ms 29836 KB Output is correct
17 Correct 12 ms 29788 KB Output is correct
18 Correct 15 ms 30048 KB Output is correct
19 Correct 12 ms 30060 KB Output is correct
20 Correct 14 ms 29688 KB Output is correct
21 Correct 11 ms 29800 KB Output is correct
22 Correct 10 ms 29708 KB Output is correct
23 Correct 12 ms 29832 KB Output is correct
24 Correct 11 ms 29836 KB Output is correct

Subtask #4
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 29132 KB Output is correct
2 Correct 6 ms 29020 KB Output is correct
3 Correct 6 ms 29016 KB Output is correct
4 Correct 6 ms 29016 KB Output is correct
5 Correct 7 ms 29020 KB Output is correct
6 Correct 6 ms 29020 KB Output is correct
7 Correct 7 ms 29016 KB Output is correct
8 Correct 7 ms 29020 KB Output is correct
9 Correct 6 ms 29188 KB Output is correct
10 Correct 6 ms 29020 KB Output is correct
11 Correct 7 ms 29276 KB Output is correct
12 Correct 7 ms 29120 KB Output is correct
13 Correct 8 ms 29276 KB Output is correct
14 Correct 7 ms 29276 KB Output is correct
15 Correct 6 ms 29020 KB Output is correct
16 Correct 13 ms 29836 KB Output is correct
17 Correct 12 ms 29788 KB Output is correct
18 Correct 15 ms 30048 KB Output is correct
19 Correct 12 ms 30060 KB Output is correct
20 Correct 14 ms 29688 KB Output is correct
21 Correct 11 ms 29800 KB Output is correct
22 Correct 10 ms 29708 KB Output is correct
23 Correct 12 ms 29832 KB Output is correct
24 Correct 11 ms 29836 KB Output is correct
25 Correct 6 ms 29032 KB Output is correct
26 Correct 7 ms 29032 KB Output is correct
27 Correct 13 ms 29840 KB Output is correct
28 Correct 13 ms 29800 KB Output is correct
29 Correct 14 ms 29692 KB Output is correct
30 Correct 12 ms 29776 KB Output is correct
31 Correct 12 ms 29788 KB Output is correct

Subtask #5
46.0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 29020 KB Output is correct
2 Correct 6 ms 29016 KB Output is correct
3 Correct 6 ms 29136 KB Output is correct
4 Correct 1104 ms 112112 KB Output is correct
5 Correct 689 ms 83140 KB Output is correct
6 Correct 631 ms 77080 KB Output is correct
7 Correct 598 ms 83712 KB Output is correct
8 Correct 411 ms 78668 KB Output is correct
9 Correct 6 ms 29132 KB Output is correct
10 Correct 6 ms 29020 KB Output is correct
11 Correct 6 ms 29016 KB Output is correct
12 Correct 6 ms 29016 KB Output is correct
13 Correct 7 ms 29020 KB Output is correct
14 Correct 6 ms 29020 KB Output is correct
15 Correct 7 ms 29016 KB Output is correct
16 Correct 7 ms 29020 KB Output is correct
17 Correct 6 ms 29188 KB Output is correct
18 Correct 6 ms 29020 KB Output is correct
19 Correct 7 ms 29276 KB Output is correct
20 Correct 7 ms 29120 KB Output is correct
21 Correct 8 ms 29276 KB Output is correct
22 Correct 7 ms 29276 KB Output is correct
23 Correct 6 ms 29020 KB Output is correct
24 Correct 13 ms 29836 KB Output is correct
25 Correct 12 ms 29788 KB Output is correct
26 Correct 15 ms 30048 KB Output is correct
27 Correct 12 ms 30060 KB Output is correct
28 Correct 14 ms 29688 KB Output is correct
29 Correct 11 ms 29800 KB Output is correct
30 Correct 10 ms 29708 KB Output is correct
31 Correct 12 ms 29832 KB Output is correct
32 Correct 11 ms 29836 KB Output is correct
33 Correct 6 ms 29032 KB Output is correct
34 Correct 7 ms 29032 KB Output is correct
35 Correct 13 ms 29840 KB Output is correct
36 Correct 13 ms 29800 KB Output is correct
37 Correct 14 ms 29692 KB Output is correct
38 Correct 12 ms 29776 KB Output is correct
39 Correct 12 ms 29788 KB Output is correct
40 Correct 1109 ms 115876 KB Output is correct
41 Correct 737 ms 83960 KB Output is correct
42 Correct 783 ms 109680 KB Output is correct
43 Correct 800 ms 122632 KB Output is correct
44 Correct 651 ms 77248 KB Output is correct
45 Correct 656 ms 84908 KB Output is correct
46 Correct 332 ms 53888 KB Output is correct
47 Correct 818 ms 95100 KB Output is correct
48 Correct 715 ms 103216 KB Output is correct