답안 #771293

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
771293	2023-07-02T19:30:48 Z	IBory	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	100 / 100	134 ms	74172 KB

skyscraper

#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")

#include <bits/stdc++.h>
#define pii pair<int, int>
using namespace std;

const int MAX = 30003;
vector<pii> G[MAX];
int D[MAX];

int main() {
	ios::sync_with_stdio(0); cin.tie(0);
	int N, M, S, E;
	cin >> N >> M;
	map<pii, vector<int>> make;
	for (int i = 0; i < M; ++i) {
		int b, p;
		cin >> b >> p;
		if (i == 0) S = b;
		if (i == 1) E = b;
		make[{p, b % p}].push_back(b);
	}

	for (auto& [q, v] : make) {
		auto [p, init] = q;
		v.push_back(init);
		v.push_back(init + (N - 1 - init) / p * p);
		sort(v.begin(), v.end());
		for (int i = 1; i + 1 < v.size(); ++i) {
			int n = v[i] - p, d = 1;
			while (n >= v[i - 1]) {
				G[v[i]].emplace_back(n, d++);
				n -= p;
			}
			n = v[i] + p, d = 1;
			while (n <= v[i + 1]) {
				G[v[i]].emplace_back(n, d++);
				n += p;
			}
		}
	}

	memset(D, 0x3f, sizeof(D));
	priority_queue<pii, vector<pii>, greater<pii>> PQ; 
	PQ.emplace(D[S] = 0, S);
	while (!PQ.empty()) {
		auto [cd, cur] = PQ.top(); PQ.pop();
		if (cd > D[cur]) continue;
		if (cur == E) break;
		for (auto [next, nd] : G[cur]) {
			if (cd + nd >= D[next]) continue;
			PQ.emplace(D[next] = cd + nd, next);
		}
	}

	cout << (D[E] > 1E9 ? -1 : D[E]);
	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:31:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |   for (int i = 1; i + 1 < v.size(); ++i) {
      |                   ~~~~~~^~~~~~~~~~
skyscraper.cpp:51:3: warning: 'E' may be used uninitialized in this function [-Wmaybe-uninitialized]
   51 |   if (cur == E) break;
      |   ^~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1108 KB	Output is correct
2	Correct	1 ms	1108 KB	Output is correct
3	Correct	1 ms	1108 KB	Output is correct
4	Correct	1 ms	1108 KB	Output is correct
5	Correct	1 ms	1108 KB	Output is correct
6	Correct	1 ms	1108 KB	Output is correct
7	Correct	1 ms	1108 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1108 KB	Output is correct
2	Correct	1 ms	1108 KB	Output is correct
3	Correct	1 ms	1108 KB	Output is correct
4	Correct	1 ms	1108 KB	Output is correct
5	Correct	1 ms	1108 KB	Output is correct
6	Correct	1 ms	1108 KB	Output is correct
7	Correct	1 ms	1108 KB	Output is correct
8	Correct	1 ms	1108 KB	Output is correct
9	Correct	1 ms	1108 KB	Output is correct
10	Correct	1 ms	1108 KB	Output is correct
11	Correct	1 ms	1236 KB	Output is correct
12	Correct	1 ms	1108 KB	Output is correct
13	Correct	1 ms	1108 KB	Output is correct
14	Correct	2 ms	1364 KB	Output is correct
15	Correct	1 ms	1364 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1108 KB	Output is correct
2	Correct	1 ms	1108 KB	Output is correct
3	Correct	1 ms	1108 KB	Output is correct
4	Correct	1 ms	1108 KB	Output is correct
5	Correct	1 ms	1108 KB	Output is correct
6	Correct	1 ms	1108 KB	Output is correct
7	Correct	1 ms	1108 KB	Output is correct
8	Correct	1 ms	1108 KB	Output is correct
9	Correct	1 ms	1108 KB	Output is correct
10	Correct	1 ms	1108 KB	Output is correct
11	Correct	2 ms	1364 KB	Output is correct
12	Correct	1 ms	1108 KB	Output is correct
13	Correct	1 ms	1108 KB	Output is correct
14	Correct	2 ms	1364 KB	Output is correct
15	Correct	2 ms	1364 KB	Output is correct
16	Correct	1 ms	1236 KB	Output is correct
17	Correct	2 ms	1492 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1108 KB	Output is correct
21	Correct	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	2 ms	1492 KB	Output is correct
25	Correct	2 ms	1364 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1236 KB	Output is correct
28	Correct	2 ms	1492 KB	Output is correct
29	Correct	3 ms	2004 KB	Output is correct
30	Correct	1 ms	1364 KB	Output is correct
31	Correct	2 ms	1620 KB	Output is correct
32	Correct	2 ms	1492 KB	Output is correct
33	Correct	5 ms	2900 KB	Output is correct
34	Correct	4 ms	2788 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1108 KB	Output is correct
2	Correct	1 ms	1108 KB	Output is correct
3	Correct	1 ms	1108 KB	Output is correct
4	Correct	1 ms	1108 KB	Output is correct
5	Correct	1 ms	1108 KB	Output is correct
6	Correct	1 ms	1108 KB	Output is correct
7	Correct	1 ms	1108 KB	Output is correct
8	Correct	1 ms	1108 KB	Output is correct
9	Correct	1 ms	1108 KB	Output is correct
10	Correct	1 ms	1108 KB	Output is correct
11	Correct	2 ms	1364 KB	Output is correct
12	Correct	1 ms	1108 KB	Output is correct
13	Correct	1 ms	1108 KB	Output is correct
14	Correct	1 ms	1364 KB	Output is correct
15	Correct	2 ms	1364 KB	Output is correct
16	Correct	1 ms	1236 KB	Output is correct
17	Correct	2 ms	1492 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1108 KB	Output is correct
21	Correct	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	2 ms	1492 KB	Output is correct
25	Correct	2 ms	1364 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1236 KB	Output is correct
28	Correct	2 ms	1492 KB	Output is correct
29	Correct	3 ms	2004 KB	Output is correct
30	Correct	1 ms	1364 KB	Output is correct
31	Correct	2 ms	1620 KB	Output is correct
32	Correct	2 ms	1492 KB	Output is correct
33	Correct	5 ms	2824 KB	Output is correct
34	Correct	3 ms	2900 KB	Output is correct
35	Correct	15 ms	4940 KB	Output is correct
36	Correct	3 ms	1748 KB	Output is correct
37	Correct	12 ms	5204 KB	Output is correct
38	Correct	18 ms	6068 KB	Output is correct
39	Correct	17 ms	5972 KB	Output is correct
40	Correct	18 ms	6020 KB	Output is correct
41	Correct	18 ms	6100 KB	Output is correct
42	Correct	5 ms	1396 KB	Output is correct
43	Correct	4 ms	1364 KB	Output is correct
44	Correct	4 ms	1364 KB	Output is correct
45	Correct	20 ms	9044 KB	Output is correct
46	Correct	20 ms	9016 KB	Output is correct

Subtask #5
43.0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1108 KB	Output is correct
2	Correct	1 ms	1108 KB	Output is correct
3	Correct	1 ms	1108 KB	Output is correct
4	Correct	1 ms	1108 KB	Output is correct
5	Correct	1 ms	1108 KB	Output is correct
6	Correct	1 ms	1108 KB	Output is correct
7	Correct	1 ms	1108 KB	Output is correct
8	Correct	1 ms	1108 KB	Output is correct
9	Correct	1 ms	1108 KB	Output is correct
10	Correct	1 ms	1108 KB	Output is correct
11	Correct	2 ms	1236 KB	Output is correct
12	Correct	1 ms	1108 KB	Output is correct
13	Correct	1 ms	1108 KB	Output is correct
14	Correct	2 ms	1364 KB	Output is correct
15	Correct	1 ms	1364 KB	Output is correct
16	Correct	1 ms	1236 KB	Output is correct
17	Correct	2 ms	1492 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1108 KB	Output is correct
21	Correct	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	2 ms	1492 KB	Output is correct
25	Correct	2 ms	1364 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1236 KB	Output is correct
28	Correct	2 ms	1492 KB	Output is correct
29	Correct	3 ms	2004 KB	Output is correct
30	Correct	1 ms	1364 KB	Output is correct
31	Correct	2 ms	1620 KB	Output is correct
32	Correct	1 ms	1492 KB	Output is correct
33	Correct	5 ms	2900 KB	Output is correct
34	Correct	3 ms	2900 KB	Output is correct
35	Correct	15 ms	4948 KB	Output is correct
36	Correct	3 ms	1748 KB	Output is correct
37	Correct	13 ms	5152 KB	Output is correct
38	Correct	18 ms	6100 KB	Output is correct
39	Correct	17 ms	5996 KB	Output is correct
40	Correct	18 ms	6084 KB	Output is correct
41	Correct	18 ms	6100 KB	Output is correct
42	Correct	4 ms	1364 KB	Output is correct
43	Correct	4 ms	1304 KB	Output is correct
44	Correct	4 ms	1364 KB	Output is correct
45	Correct	22 ms	8976 KB	Output is correct
46	Correct	20 ms	9016 KB	Output is correct
47	Correct	24 ms	12896 KB	Output is correct
48	Correct	15 ms	5888 KB	Output is correct
49	Correct	13 ms	4948 KB	Output is correct
50	Correct	10 ms	4180 KB	Output is correct
51	Correct	25 ms	8516 KB	Output is correct
52	Correct	26 ms	8848 KB	Output is correct
53	Correct	18 ms	5436 KB	Output is correct
54	Correct	2 ms	1620 KB	Output is correct
55	Correct	2 ms	2004 KB	Output is correct
56	Correct	7 ms	2132 KB	Output is correct
57	Correct	8 ms	9828 KB	Output is correct
58	Correct	6 ms	2256 KB	Output is correct
59	Correct	7 ms	2512 KB	Output is correct
60	Correct	7 ms	3248 KB	Output is correct
61	Correct	7 ms	2768 KB	Output is correct
62	Correct	22 ms	9304 KB	Output is correct
63	Correct	60 ms	27912 KB	Output is correct
64	Correct	63 ms	36368 KB	Output is correct
65	Correct	80 ms	46364 KB	Output is correct
66	Correct	134 ms	74124 KB	Output is correct
67	Correct	107 ms	74172 KB	Output is correct

답안 #771293

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