답안 #449621

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
449621	2021-08-02T07:30:18 Z	zxcvbnm	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	198 ms	81896 KB

skyscraper

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
const int nax = 30005;
const int INF = 1e9 + 5;
vector<pii> adj[nax];
vector<int> dist(nax, INF);
set<int> used[nax];
set<int> all[nax];

struct Edge {
    int to, w;
    bool operator<(const Edge& other) const {
        return w > other.w;
    }
};
priority_queue<Edge> q;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, m;
    cin >> n >> m;
    vector<pii> a(m);
    for(auto& i : a) {
        cin >> i.first >> i.second;
    }


    for(auto i : a) {
        all[i.first].insert(i.second);
    }

    for(auto i : a) {
        if (used[i.first].count(i.second)) continue;
        used[i.first].insert(i.second);

        int idx = i.first + i.second;
        for(int cost = 1;;cost++) {
            if (idx >= n) break;
            adj[i.first].push_back({idx, cost});
            if (all[idx].count(i.second)) break;
//            cout << i.first << "->" << idx << " " << cost << "\n";
            idx += i.second;
        }

        idx = i.first - i.second;
        for(int cost = 1;;cost++) {
            if (idx < 0) break;
            adj[i.first].push_back({idx, cost});
            if (all[idx].count(i.second)) break;
//            cout << i.first << "->" << idx << " " << cost << "\n";
            idx -= i.second;
        }
    }

    q.push({a[0].first, 0});
    dist[a[0].first] = 0;

    while(!q.empty()) {
        Edge v = q.top();

        q.pop();

        if (dist[v.to] < v.w) continue;

        for(pii u : adj[v.to]) {
            if (dist[u.first] > u.second + v.w) {
                dist[u.first] = u.second + v.w;
                q.push({u.first, dist[u.first]});
            }
        }
    }

    cout << (dist[a[1].first] == INF ? -1 : dist[a[1].first]) << "\n";
    return 0;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	3916 KB	Output is correct
2	Correct	2 ms	3916 KB	Output is correct
3	Correct	2 ms	3916 KB	Output is correct
4	Correct	2 ms	3916 KB	Output is correct
5	Correct	3 ms	3916 KB	Output is correct
6	Correct	2 ms	3916 KB	Output is correct
7	Correct	2 ms	3916 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	3916 KB	Output is correct
2	Correct	3 ms	3916 KB	Output is correct
3	Correct	2 ms	3916 KB	Output is correct
4	Correct	3 ms	3916 KB	Output is correct
5	Correct	3 ms	3916 KB	Output is correct
6	Correct	2 ms	3916 KB	Output is correct
7	Correct	2 ms	3916 KB	Output is correct
8	Correct	3 ms	3916 KB	Output is correct
9	Correct	2 ms	3916 KB	Output is correct
10	Correct	3 ms	3916 KB	Output is correct
11	Correct	4 ms	4172 KB	Output is correct
12	Correct	3 ms	3916 KB	Output is correct
13	Correct	3 ms	3916 KB	Output is correct
14	Correct	5 ms	4172 KB	Output is correct
15	Correct	4 ms	4172 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	3916 KB	Output is correct
2	Correct	2 ms	3916 KB	Output is correct
3	Correct	2 ms	3916 KB	Output is correct
4	Correct	2 ms	3916 KB	Output is correct
5	Correct	2 ms	3916 KB	Output is correct
6	Correct	3 ms	3916 KB	Output is correct
7	Correct	3 ms	3916 KB	Output is correct
8	Correct	3 ms	3916 KB	Output is correct
9	Correct	2 ms	3916 KB	Output is correct
10	Correct	4 ms	3916 KB	Output is correct
11	Correct	5 ms	4172 KB	Output is correct
12	Correct	3 ms	3916 KB	Output is correct
13	Correct	3 ms	3916 KB	Output is correct
14	Correct	4 ms	4172 KB	Output is correct
15	Correct	4 ms	4172 KB	Output is correct
16	Correct	3 ms	4060 KB	Output is correct
17	Correct	4 ms	4300 KB	Output is correct
18	Correct	3 ms	4044 KB	Output is correct
19	Correct	3 ms	4044 KB	Output is correct
20	Correct	5 ms	4172 KB	Output is correct
21	Correct	3 ms	4044 KB	Output is correct
22	Correct	3 ms	4044 KB	Output is correct
23	Correct	3 ms	4044 KB	Output is correct
24	Correct	4 ms	4300 KB	Output is correct
25	Correct	5 ms	4300 KB	Output is correct
26	Correct	3 ms	4044 KB	Output is correct
27	Correct	3 ms	4044 KB	Output is correct
28	Correct	4 ms	4300 KB	Output is correct
29	Correct	5 ms	4812 KB	Output is correct
30	Correct	4 ms	4300 KB	Output is correct
31	Correct	4 ms	4428 KB	Output is correct
32	Correct	4 ms	4300 KB	Output is correct
33	Correct	7 ms	5552 KB	Output is correct
34	Correct	8 ms	5580 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	3916 KB	Output is correct
2	Correct	2 ms	3916 KB	Output is correct
3	Correct	2 ms	3912 KB	Output is correct
4	Correct	2 ms	3916 KB	Output is correct
5	Correct	3 ms	3916 KB	Output is correct
6	Correct	3 ms	3916 KB	Output is correct
7	Correct	3 ms	3916 KB	Output is correct
8	Correct	3 ms	3916 KB	Output is correct
9	Correct	3 ms	3916 KB	Output is correct
10	Correct	3 ms	3916 KB	Output is correct
11	Correct	5 ms	4172 KB	Output is correct
12	Correct	3 ms	3916 KB	Output is correct
13	Correct	3 ms	3916 KB	Output is correct
14	Correct	4 ms	4172 KB	Output is correct
15	Correct	4 ms	4172 KB	Output is correct
16	Correct	3 ms	4044 KB	Output is correct
17	Correct	4 ms	4300 KB	Output is correct
18	Correct	3 ms	4044 KB	Output is correct
19	Correct	3 ms	4044 KB	Output is correct
20	Correct	4 ms	4172 KB	Output is correct
21	Correct	3 ms	4096 KB	Output is correct
22	Correct	3 ms	4044 KB	Output is correct
23	Correct	3 ms	4044 KB	Output is correct
24	Correct	4 ms	4300 KB	Output is correct
25	Correct	4 ms	4300 KB	Output is correct
26	Correct	3 ms	4044 KB	Output is correct
27	Correct	3 ms	4044 KB	Output is correct
28	Correct	4 ms	4300 KB	Output is correct
29	Correct	5 ms	4812 KB	Output is correct
30	Correct	3 ms	4300 KB	Output is correct
31	Correct	4 ms	4428 KB	Output is correct
32	Correct	4 ms	4300 KB	Output is correct
33	Correct	7 ms	5580 KB	Output is correct
34	Correct	7 ms	5592 KB	Output is correct
35	Correct	33 ms	7492 KB	Output is correct
36	Correct	6 ms	4556 KB	Output is correct
37	Correct	34 ms	8012 KB	Output is correct
38	Correct	34 ms	8756 KB	Output is correct
39	Correct	47 ms	8768 KB	Output is correct
40	Correct	45 ms	8784 KB	Output is correct
41	Correct	46 ms	8772 KB	Output is correct
42	Correct	9 ms	4336 KB	Output is correct
43	Correct	9 ms	4300 KB	Output is correct
44	Correct	8 ms	4428 KB	Output is correct
45	Correct	38 ms	11544 KB	Output is correct
46	Correct	40 ms	11488 KB	Output is correct

Subtask #5
43.0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3916 KB	Output is correct
2	Correct	2 ms	3916 KB	Output is correct
3	Correct	2 ms	3916 KB	Output is correct
4	Correct	2 ms	3916 KB	Output is correct
5	Correct	2 ms	3916 KB	Output is correct
6	Correct	3 ms	3916 KB	Output is correct
7	Correct	3 ms	3916 KB	Output is correct
8	Correct	3 ms	3916 KB	Output is correct
9	Correct	2 ms	3916 KB	Output is correct
10	Correct	3 ms	3916 KB	Output is correct
11	Correct	4 ms	4172 KB	Output is correct
12	Correct	3 ms	3912 KB	Output is correct
13	Correct	3 ms	3916 KB	Output is correct
14	Correct	4 ms	4172 KB	Output is correct
15	Correct	5 ms	4172 KB	Output is correct
16	Correct	3 ms	4044 KB	Output is correct
17	Correct	5 ms	4256 KB	Output is correct
18	Correct	3 ms	4044 KB	Output is correct
19	Correct	3 ms	4044 KB	Output is correct
20	Correct	4 ms	4172 KB	Output is correct
21	Correct	3 ms	4044 KB	Output is correct
22	Correct	3 ms	4044 KB	Output is correct
23	Correct	3 ms	4044 KB	Output is correct
24	Correct	5 ms	4300 KB	Output is correct
25	Correct	4 ms	4300 KB	Output is correct
26	Correct	3 ms	4044 KB	Output is correct
27	Correct	3 ms	4044 KB	Output is correct
28	Correct	4 ms	4300 KB	Output is correct
29	Correct	5 ms	4892 KB	Output is correct
30	Correct	4 ms	4300 KB	Output is correct
31	Correct	4 ms	4428 KB	Output is correct
32	Correct	4 ms	4300 KB	Output is correct
33	Correct	7 ms	5580 KB	Output is correct
34	Correct	8 ms	5632 KB	Output is correct
35	Correct	29 ms	7508 KB	Output is correct
36	Correct	6 ms	4556 KB	Output is correct
37	Correct	25 ms	7976 KB	Output is correct
38	Correct	35 ms	8780 KB	Output is correct
39	Correct	33 ms	8716 KB	Output is correct
40	Correct	34 ms	8664 KB	Output is correct
41	Correct	34 ms	8772 KB	Output is correct
42	Correct	8 ms	4300 KB	Output is correct
43	Correct	8 ms	4300 KB	Output is correct
44	Correct	10 ms	4328 KB	Output is correct
45	Correct	44 ms	11552 KB	Output is correct
46	Correct	36 ms	11476 KB	Output is correct
47	Correct	74 ms	15552 KB	Output is correct
48	Correct	25 ms	8520 KB	Output is correct
49	Correct	29 ms	7504 KB	Output is correct
50	Correct	16 ms	6884 KB	Output is correct
51	Correct	52 ms	10836 KB	Output is correct
52	Correct	52 ms	11252 KB	Output is correct
53	Correct	30 ms	8692 KB	Output is correct
54	Correct	5 ms	4448 KB	Output is correct
55	Correct	6 ms	4872 KB	Output is correct
56	Correct	28 ms	8140 KB	Output is correct
57	Correct	36 ms	12984 KB	Output is correct
58	Correct	13 ms	5512 KB	Output is correct
59	Correct	13 ms	5760 KB	Output is correct
60	Correct	14 ms	6324 KB	Output is correct
61	Correct	14 ms	5924 KB	Output is correct
62	Correct	38 ms	12260 KB	Output is correct
63	Correct	94 ms	31908 KB	Output is correct
64	Correct	118 ms	40636 KB	Output is correct
65	Correct	132 ms	53156 KB	Output is correct
66	Correct	198 ms	81896 KB	Output is correct
67	Correct	197 ms	81104 KB	Output is correct

답안 #449621

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 12.0 / 12.0

Subtask #3 14.0 / 14.0

Subtask #4 21.0 / 21.0

Subtask #5 43.0 / 43.0

Subtask #1
10.0 / 10.0

Subtask #2
12.0 / 12.0

Subtask #3
14.0 / 14.0

Subtask #4
21.0 / 21.0

Subtask #5
43.0 / 43.0