Submission #350653

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
350653	2021-01-19T07:12:08 Z	Fischer	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	291 ms	79724 KB

skyscraper

#include <bits/stdc++.h>
using namespace std;

const int maxn = 3e4 + 10;
set<int> pos[maxn];
vector<pair<int, int>> g[maxn];
using ll = long long;
ll d[maxn];

ll dijkstra(int src, int snk) {
	memset(d, 1, sizeof d);
	d[src] = 0;
	using pii = pair<ll, int>;
	priority_queue<pii, vector<pii>, greater<pii>> Q;
	Q.push({0, src});
	while (!Q.empty()) {
		auto q = Q.top(); Q.pop();
		if (q.second == snk) return q.first;
		if (q.first != d[q.second]) continue;
		for (auto e : g[q.second]) {
			ll temp = q.first + e.second;
			if (temp < d[e.first]) {
				d[e.first] = temp;
				Q.push({temp, e.first});
			}
		}
	}
	return -1;
}

int main() {
	int n, m;
	cin >> n >> m;
	set<pair<int, int>> t;
	int x = -1, y = -1;
	for (int i = 0; i < m; ++i) {
		int b, p;
		cin >> b >> p;
		t.insert({p, b});
		pos[b].insert(p);
		if (x == -1) x = b;
		else if (y == -1) y = b;
	}
	auto same = [](int b, int p) {
		return !pos[b].empty() && pos[b].count(p);	
	};
	for (auto q : t) {
		for (int i = 1; ; ++i) {
			int temp = q.second + i * q.first;
			if (temp >= n) break;
			g[q.second].emplace_back(temp, i);
			if (same(temp, q.first)) break;
		}
		for (int i = 1; ; ++i) {
			int temp = q.second - i * q.first;
			if (temp < 0) break;
			g[q.second].emplace_back(temp, i);
			if (same(temp, q.first)) break;
		}
	}
	cout << dijkstra(x, y) << endl;
	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2668 KB	Output is correct
2	Correct	2 ms	2668 KB	Output is correct
3	Correct	2 ms	2668 KB	Output is correct
4	Correct	2 ms	2696 KB	Output is correct
5	Correct	3 ms	2668 KB	Output is correct
6	Correct	2 ms	2668 KB	Output is correct
7	Correct	3 ms	2668 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2668 KB	Output is correct
2	Correct	2 ms	2668 KB	Output is correct
3	Correct	2 ms	2668 KB	Output is correct
4	Correct	2 ms	2668 KB	Output is correct
5	Correct	2 ms	2668 KB	Output is correct
6	Correct	4 ms	2668 KB	Output is correct
7	Correct	3 ms	2816 KB	Output is correct
8	Correct	3 ms	2668 KB	Output is correct
9	Correct	3 ms	2668 KB	Output is correct
10	Correct	3 ms	2668 KB	Output is correct
11	Correct	5 ms	2924 KB	Output is correct
12	Correct	4 ms	2668 KB	Output is correct
13	Correct	3 ms	2668 KB	Output is correct
14	Correct	4 ms	2924 KB	Output is correct
15	Correct	5 ms	2924 KB	Output is correct

Subtask #3
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2668 KB	Output is correct
2	Correct	2 ms	2668 KB	Output is correct
3	Correct	2 ms	2668 KB	Output is correct
4	Correct	2 ms	2668 KB	Output is correct
5	Correct	3 ms	2668 KB	Output is correct
6	Correct	2 ms	2668 KB	Output is correct
7	Correct	3 ms	2668 KB	Output is correct
8	Correct	3 ms	2668 KB	Output is correct
9	Correct	2 ms	2668 KB	Output is correct
10	Correct	3 ms	2668 KB	Output is correct
11	Correct	5 ms	2924 KB	Output is correct
12	Correct	4 ms	2668 KB	Output is correct
13	Correct	3 ms	2668 KB	Output is correct
14	Correct	6 ms	2924 KB	Output is correct
15	Correct	5 ms	2956 KB	Output is correct
16	Correct	4 ms	2796 KB	Output is correct
17	Correct	6 ms	3052 KB	Output is correct
18	Correct	3 ms	2796 KB	Output is correct
19	Correct	3 ms	2796 KB	Output is correct
20	Correct	4 ms	2924 KB	Output is correct
21	Correct	3 ms	2796 KB	Output is correct
22	Correct	3 ms	2796 KB	Output is correct
23	Correct	3 ms	2924 KB	Output is correct
24	Correct	5 ms	3052 KB	Output is correct
25	Correct	5 ms	2924 KB	Output is correct
26	Correct	3 ms	2796 KB	Output is correct
27	Correct	4 ms	2796 KB	Output is correct
28	Correct	5 ms	3052 KB	Output is correct
29	Correct	6 ms	3700 KB	Output is correct
30	Correct	4 ms	3052 KB	Output is correct
31	Correct	4 ms	3308 KB	Output is correct
32	Correct	4 ms	3200 KB	Output is correct
33	Correct	9 ms	4752 KB	Output is correct
34	Correct	8 ms	4732 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2668 KB	Output is correct
2	Correct	2 ms	2668 KB	Output is correct
3	Correct	2 ms	2668 KB	Output is correct
4	Correct	2 ms	2668 KB	Output is correct
5	Correct	2 ms	2668 KB	Output is correct
6	Correct	2 ms	2668 KB	Output is correct
7	Correct	3 ms	2672 KB	Output is correct
8	Correct	2 ms	2668 KB	Output is correct
9	Correct	3 ms	2668 KB	Output is correct
10	Correct	3 ms	2668 KB	Output is correct
11	Correct	5 ms	2924 KB	Output is correct
12	Correct	3 ms	2668 KB	Output is correct
13	Correct	4 ms	2668 KB	Output is correct
14	Correct	6 ms	2924 KB	Output is correct
15	Correct	4 ms	2884 KB	Output is correct
16	Correct	3 ms	2796 KB	Output is correct
17	Correct	5 ms	3052 KB	Output is correct
18	Correct	4 ms	2884 KB	Output is correct
19	Correct	3 ms	2796 KB	Output is correct
20	Correct	4 ms	2924 KB	Output is correct
21	Correct	3 ms	2796 KB	Output is correct
22	Correct	3 ms	2796 KB	Output is correct
23	Correct	4 ms	2924 KB	Output is correct
24	Correct	5 ms	3052 KB	Output is correct
25	Correct	4 ms	2924 KB	Output is correct
26	Correct	3 ms	2796 KB	Output is correct
27	Correct	4 ms	2796 KB	Output is correct
28	Correct	5 ms	3052 KB	Output is correct
29	Correct	7 ms	3700 KB	Output is correct
30	Correct	4 ms	3052 KB	Output is correct
31	Correct	4 ms	3308 KB	Output is correct
32	Correct	4 ms	3180 KB	Output is correct
33	Correct	9 ms	4732 KB	Output is correct
34	Correct	8 ms	4732 KB	Output is correct
35	Correct	41 ms	6388 KB	Output is correct
36	Correct	9 ms	3308 KB	Output is correct
37	Correct	37 ms	6892 KB	Output is correct
38	Correct	54 ms	7660 KB	Output is correct
39	Correct	52 ms	7524 KB	Output is correct
40	Correct	50 ms	7532 KB	Output is correct
41	Correct	57 ms	7660 KB	Output is correct
42	Correct	17 ms	3052 KB	Output is correct
43	Correct	17 ms	3052 KB	Output is correct
44	Correct	21 ms	3324 KB	Output is correct
45	Correct	58 ms	10584 KB	Output is correct
46	Correct	59 ms	10620 KB	Output is correct

Subtask #5
43.0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2668 KB	Output is correct
2	Correct	2 ms	2668 KB	Output is correct
3	Correct	2 ms	2668 KB	Output is correct
4	Correct	2 ms	2668 KB	Output is correct
5	Correct	2 ms	2668 KB	Output is correct
6	Correct	2 ms	2668 KB	Output is correct
7	Correct	3 ms	2668 KB	Output is correct
8	Correct	2 ms	2668 KB	Output is correct
9	Correct	2 ms	2668 KB	Output is correct
10	Correct	2 ms	2668 KB	Output is correct
11	Correct	4 ms	2876 KB	Output is correct
12	Correct	3 ms	2696 KB	Output is correct
13	Correct	3 ms	2668 KB	Output is correct
14	Correct	6 ms	2924 KB	Output is correct
15	Correct	4 ms	2924 KB	Output is correct
16	Correct	4 ms	2796 KB	Output is correct
17	Correct	5 ms	3052 KB	Output is correct
18	Correct	5 ms	2796 KB	Output is correct
19	Correct	3 ms	2944 KB	Output is correct
20	Correct	4 ms	2924 KB	Output is correct
21	Correct	3 ms	2796 KB	Output is correct
22	Correct	4 ms	2796 KB	Output is correct
23	Correct	4 ms	3072 KB	Output is correct
24	Correct	6 ms	3052 KB	Output is correct
25	Correct	5 ms	2924 KB	Output is correct
26	Correct	5 ms	2796 KB	Output is correct
27	Correct	6 ms	2796 KB	Output is correct
28	Correct	5 ms	3052 KB	Output is correct
29	Correct	6 ms	3700 KB	Output is correct
30	Correct	3 ms	3052 KB	Output is correct
31	Correct	5 ms	3308 KB	Output is correct
32	Correct	4 ms	3180 KB	Output is correct
33	Correct	11 ms	4732 KB	Output is correct
34	Correct	8 ms	4692 KB	Output is correct
35	Correct	52 ms	6380 KB	Output is correct
36	Correct	10 ms	3308 KB	Output is correct
37	Correct	39 ms	6892 KB	Output is correct
38	Correct	65 ms	7636 KB	Output is correct
39	Correct	56 ms	7532 KB	Output is correct
40	Correct	50 ms	7532 KB	Output is correct
41	Correct	65 ms	7660 KB	Output is correct
42	Correct	19 ms	3052 KB	Output is correct
43	Correct	17 ms	3052 KB	Output is correct
44	Correct	18 ms	3180 KB	Output is correct
45	Correct	57 ms	10600 KB	Output is correct
46	Correct	54 ms	10620 KB	Output is correct
47	Correct	120 ms	14940 KB	Output is correct
48	Correct	44 ms	7336 KB	Output is correct
49	Correct	47 ms	6380 KB	Output is correct
50	Correct	35 ms	5740 KB	Output is correct
51	Correct	78 ms	10304 KB	Output is correct
52	Correct	117 ms	10840 KB	Output is correct
53	Correct	53 ms	7028 KB	Output is correct
54	Correct	4 ms	3308 KB	Output is correct
55	Correct	6 ms	3820 KB	Output is correct
56	Correct	42 ms	6636 KB	Output is correct
57	Correct	20 ms	11888 KB	Output is correct
58	Correct	17 ms	4108 KB	Output is correct
59	Correct	27 ms	4336 KB	Output is correct
60	Correct	22 ms	5116 KB	Output is correct
61	Correct	27 ms	4552 KB	Output is correct
62	Correct	72 ms	10856 KB	Output is correct
63	Correct	175 ms	31452 KB	Output is correct
64	Correct	160 ms	39904 KB	Output is correct
65	Correct	199 ms	49860 KB	Output is correct
66	Correct	260 ms	79724 KB	Output is correct
67	Correct	291 ms	79724 KB	Output is correct

Submission #350653

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