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답안 #959607

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
959607 2024-04-08T13:41:03 Z TAhmed33 Passport (JOI23_passport) C++
100 / 100
 768 ms 100380 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e6 + 25;
const int inf = MAXN << 4;
#define mid ((l + r) >> 1)
#define tl (node + 1)
#define tr (node + 2 * (mid - l + 1))
int cnt;
vector <pair <int, int>> radj[MAXN];
void add_edge (int x, int y) {
    radj[x].push_back({y, 0});
}
struct SegmentTree {
    int tree[MAXN << 1];
    int init (int l, int r, int node) {
        if (l == r) return tree[node] = l;
        int x = init(l, mid, tl), y = init(mid + 1, r, tr);
        tree[node] = ++cnt;
        add_edge(x, tree[node]); add_edge(y, tree[node]);
        return tree[node];
    }
    void update (int l, int r, int a, int b, int c, int node) {
        if (l > b || r < a) return;
        if (l >= a && r <= b) {
            add_edge(tree[node], c);
            return;
        }
        update(l, mid, a, b, c, tl); update(mid + 1, r, a, b, c, tr);
    }
} cur;
int n, q;
int dist1[MAXN], dist2[MAXN], dist3[MAXN];
int main () {
    ios::sync_with_stdio(0); cin.tie(0);
    cin >> n; cnt = n;
    cur.init(1, n, 1);
    for (int i = 1; i <= n; i++) {
        int l, r; cin >> l >> r;
        ++cnt;
        radj[cnt].push_back({i, 1});
        cur.update(1, n, l, r, cnt, 1);
    }
    for (int i = 1; i <= cnt; i++) dist1[i] = dist2[i] = inf;
    priority_queue <pair <int, int>, vector <pair <int, int>>, greater <>> cur;
    cur.push({0, 1}); dist1[1] = 0;
    while (!cur.empty()) {
        auto k = cur.top();
        cur.pop();
        if (k.first > dist1[k.second]) continue;
        for (auto j : radj[k.second]) {
            if (k.first + j.second < dist1[j.first]) {
                dist1[j.first] = k.first + j.second;
                cur.push({dist1[j.first], j.first});
            }
        }
    }
    cur.push({0, n}); dist2[n] = 0;
    while (!cur.empty()) {
        auto k = cur.top();
        cur.pop();
        if (k.first > dist2[k.second]) continue;
        for (auto j : radj[k.second]) {
            if (k.first + j.second < dist2[j.first]) {
                dist2[j.first] = k.first + j.second;
                cur.push({dist2[j.first], j.first});
            }
        }
    }
    for (int i = 1; i <= cnt; i++) {
        dist3[i] = dist1[i] + dist2[i];
        cur.push({dist3[i], i});
    }
    while (!cur.empty()) {
        auto k = cur.top();
        cur.pop();
        if (k.first > dist3[k.second]) continue;
        for (auto j : radj[k.second]) {
            if (k.first + j.second < dist3[j.first]) {
                dist3[j.first] = k.first + j.second;
                cur.push({dist3[j.first], j.first});
            }
        }
    }
    for (int i = 1; i <= cnt; i++) if (dist3[i] > n) dist3[i] = -1;
    cin >> q;
    while (q--) {
        int x; cin >> x;
        cout << dist3[x] << '\n';
    }
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 30812 KB Output is correct
2 Correct 7 ms 30812 KB Output is correct
3 Correct 7 ms 30812 KB Output is correct
4 Correct 723 ms 95040 KB Output is correct
5 Correct 370 ms 76604 KB Output is correct
6 Correct 220 ms 71948 KB Output is correct
7 Correct 266 ms 70136 KB Output is correct
8 Correct 160 ms 72048 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 30812 KB Output is correct
2 Correct 7 ms 30812 KB Output is correct
3 Correct 7 ms 30812 KB Output is correct
4 Correct 7 ms 30936 KB Output is correct
5 Correct 7 ms 30812 KB Output is correct
6 Correct 7 ms 30812 KB Output is correct
7 Correct 7 ms 30812 KB Output is correct
8 Correct 7 ms 30812 KB Output is correct
9 Correct 7 ms 30808 KB Output is correct
10 Correct 8 ms 30808 KB Output is correct
11 Correct 7 ms 31068 KB Output is correct
12 Correct 8 ms 30940 KB Output is correct
13 Correct 8 ms 31068 KB Output is correct
14 Correct 7 ms 30896 KB Output is correct
15 Correct 7 ms 31064 KB Output is correct

Subtask #3
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 30812 KB Output is correct
2 Correct 7 ms 30812 KB Output is correct
3 Correct 7 ms 30812 KB Output is correct
4 Correct 7 ms 30936 KB Output is correct
5 Correct 7 ms 30812 KB Output is correct
6 Correct 7 ms 30812 KB Output is correct
7 Correct 7 ms 30812 KB Output is correct
8 Correct 7 ms 30812 KB Output is correct
9 Correct 7 ms 30808 KB Output is correct
10 Correct 8 ms 30808 KB Output is correct
11 Correct 7 ms 31068 KB Output is correct
12 Correct 8 ms 30940 KB Output is correct
13 Correct 8 ms 31068 KB Output is correct
14 Correct 7 ms 30896 KB Output is correct
15 Correct 7 ms 31064 KB Output is correct
16 Correct 11 ms 31564 KB Output is correct
17 Correct 10 ms 31324 KB Output is correct
18 Correct 11 ms 31580 KB Output is correct
19 Correct 11 ms 31664 KB Output is correct
20 Correct 9 ms 31324 KB Output is correct
21 Correct 11 ms 31324 KB Output is correct
22 Correct 9 ms 31448 KB Output is correct
23 Correct 10 ms 31324 KB Output is correct
24 Correct 9 ms 31580 KB Output is correct

Subtask #4
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 30812 KB Output is correct
2 Correct 7 ms 30812 KB Output is correct
3 Correct 7 ms 30812 KB Output is correct
4 Correct 7 ms 30936 KB Output is correct
5 Correct 7 ms 30812 KB Output is correct
6 Correct 7 ms 30812 KB Output is correct
7 Correct 7 ms 30812 KB Output is correct
8 Correct 7 ms 30812 KB Output is correct
9 Correct 7 ms 30808 KB Output is correct
10 Correct 8 ms 30808 KB Output is correct
11 Correct 7 ms 31068 KB Output is correct
12 Correct 8 ms 30940 KB Output is correct
13 Correct 8 ms 31068 KB Output is correct
14 Correct 7 ms 30896 KB Output is correct
15 Correct 7 ms 31064 KB Output is correct
16 Correct 11 ms 31564 KB Output is correct
17 Correct 10 ms 31324 KB Output is correct
18 Correct 11 ms 31580 KB Output is correct
19 Correct 11 ms 31664 KB Output is correct
20 Correct 9 ms 31324 KB Output is correct
21 Correct 11 ms 31324 KB Output is correct
22 Correct 9 ms 31448 KB Output is correct
23 Correct 10 ms 31324 KB Output is correct
24 Correct 9 ms 31580 KB Output is correct
25 Correct 7 ms 30812 KB Output is correct
26 Correct 7 ms 30812 KB Output is correct
27 Correct 11 ms 31576 KB Output is correct
28 Correct 11 ms 31324 KB Output is correct
29 Correct 9 ms 31196 KB Output is correct
30 Correct 11 ms 31432 KB Output is correct
31 Correct 10 ms 31424 KB Output is correct

Subtask #5
46.0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 30812 KB Output is correct
2 Correct 7 ms 30812 KB Output is correct
3 Correct 7 ms 30812 KB Output is correct
4 Correct 723 ms 95040 KB Output is correct
5 Correct 370 ms 76604 KB Output is correct
6 Correct 220 ms 71948 KB Output is correct
7 Correct 266 ms 70136 KB Output is correct
8 Correct 160 ms 72048 KB Output is correct
9 Correct 7 ms 30812 KB Output is correct
10 Correct 7 ms 30812 KB Output is correct
11 Correct 7 ms 30812 KB Output is correct
12 Correct 7 ms 30936 KB Output is correct
13 Correct 7 ms 30812 KB Output is correct
14 Correct 7 ms 30812 KB Output is correct
15 Correct 7 ms 30812 KB Output is correct
16 Correct 7 ms 30812 KB Output is correct
17 Correct 7 ms 30808 KB Output is correct
18 Correct 8 ms 30808 KB Output is correct
19 Correct 7 ms 31068 KB Output is correct
20 Correct 8 ms 30940 KB Output is correct
21 Correct 8 ms 31068 KB Output is correct
22 Correct 7 ms 30896 KB Output is correct
23 Correct 7 ms 31064 KB Output is correct
24 Correct 11 ms 31564 KB Output is correct
25 Correct 10 ms 31324 KB Output is correct
26 Correct 11 ms 31580 KB Output is correct
27 Correct 11 ms 31664 KB Output is correct
28 Correct 9 ms 31324 KB Output is correct
29 Correct 11 ms 31324 KB Output is correct
30 Correct 9 ms 31448 KB Output is correct
31 Correct 10 ms 31324 KB Output is correct
32 Correct 9 ms 31580 KB Output is correct
33 Correct 7 ms 30812 KB Output is correct
34 Correct 7 ms 30812 KB Output is correct
35 Correct 11 ms 31576 KB Output is correct
36 Correct 11 ms 31324 KB Output is correct
37 Correct 9 ms 31196 KB Output is correct
38 Correct 11 ms 31432 KB Output is correct
39 Correct 10 ms 31424 KB Output is correct
40 Correct 768 ms 95648 KB Output is correct
41 Correct 389 ms 76960 KB Output is correct
42 Correct 492 ms 100380 KB Output is correct
43 Correct 475 ms 100124 KB Output is correct
44 Correct 244 ms 72288 KB Output is correct
45 Correct 316 ms 77396 KB Output is correct
46 Correct 154 ms 49760 KB Output is correct
47 Correct 454 ms 79136 KB Output is correct
48 Correct 397 ms 87408 KB Output is correct