답안 #76361 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
76361	2018-09-13T04:07:54 Z	shoemakerjo	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	163 ms	16504 KB

skyscraper

#include <bits/stdc++.h>

using namespace std;
#define maxn 30010
#define pii pair<int, int>

int N, M;
priority_queue<pii, vector<pii>, greater<pii>> pq;

const int inf = 987654321;
vector<vector<int>> mov(maxn);
int dist[maxn];

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin >> N >> M;
	int source, sink;
	int b, p;
	for (int i = 0; i < M; i++) {
		cin >> b >> p;
		mov[b].push_back(p);
		if (i == 0) source = b;
		if (i == 1) sink = b;
	}
	for (int i = 0; i < N-1; i++) {
		sort(mov[i].begin(), mov[i].end());
	}
	fill(dist, dist+maxn, inf);
	dist[source] = 0;

	pq.push(pii(0, source));
	while (pq.size()) {
		pii cur = pq.top(); pq.pop();
		int spot = cur.second;
		int d = cur.first;
		if (d > dist[spot]) continue;
		if (spot == sink) break;
		int prev = -1;

		for (int val : mov[spot]) {
			if (val == prev) continue;
			prev = val;
			for (int jp = 1; jp < N; jp++) {
				int nx = jp*val + spot;
				if (nx >= N) break;
				if (d + jp < dist[nx]) {
					dist[nx] = d+jp;
					pq.push(pii(d+jp, nx));
				}
				if (binary_search(mov[nx].begin(), mov[nx].end(), val)) break;
			}
			for (int jp = 1; jp < N; jp++) {
				int nx = spot - jp*val;
				if (nx < 0) break;
				if (nx >= N) break;
				if (d + jp < dist[nx]) {
					dist[nx] = d+jp;
					pq.push(pii(d+jp, nx));
				}
				if (binary_search(mov[nx].begin(), mov[nx].end(), val)) break;
			}
		}
	}



	if (dist[sink] == inf) dist[sink] = -1;
	cout << dist[sink] << endl;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:38:3: warning: 'sink' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (spot == sink) break;
   ^~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1144 KB	Output is correct
2	Correct	3 ms	1296 KB	Output is correct
3	Correct	3 ms	1296 KB	Output is correct
4	Correct	3 ms	1300 KB	Output is correct
5	Correct	3 ms	1356 KB	Output is correct
6	Correct	3 ms	1356 KB	Output is correct
7	Correct	3 ms	1372 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1436 KB	Output is correct
2	Correct	3 ms	1448 KB	Output is correct
3	Correct	3 ms	1448 KB	Output is correct
4	Correct	3 ms	1448 KB	Output is correct
5	Correct	3 ms	1448 KB	Output is correct
6	Correct	3 ms	1448 KB	Output is correct
7	Correct	3 ms	1448 KB	Output is correct
8	Correct	2 ms	1448 KB	Output is correct
9	Correct	3 ms	1448 KB	Output is correct
10	Correct	3 ms	1504 KB	Output is correct
11	Correct	3 ms	1652 KB	Output is correct
12	Correct	3 ms	1652 KB	Output is correct
13	Correct	3 ms	1652 KB	Output is correct
14	Correct	3 ms	1668 KB	Output is correct
15	Correct	3 ms	1696 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1696 KB	Output is correct
2	Correct	3 ms	1696 KB	Output is correct
3	Correct	3 ms	1696 KB	Output is correct
4	Correct	3 ms	1696 KB	Output is correct
5	Correct	3 ms	1696 KB	Output is correct
6	Correct	3 ms	1696 KB	Output is correct
7	Correct	3 ms	1696 KB	Output is correct
8	Correct	3 ms	1696 KB	Output is correct
9	Correct	4 ms	1696 KB	Output is correct
10	Correct	4 ms	1696 KB	Output is correct
11	Correct	4 ms	1804 KB	Output is correct
12	Correct	3 ms	1804 KB	Output is correct
13	Correct	3 ms	1804 KB	Output is correct
14	Correct	3 ms	1804 KB	Output is correct
15	Correct	3 ms	1804 KB	Output is correct
16	Correct	3 ms	1804 KB	Output is correct
17	Correct	4 ms	1908 KB	Output is correct
18	Correct	3 ms	1908 KB	Output is correct
19	Correct	3 ms	1908 KB	Output is correct
20	Correct	4 ms	1944 KB	Output is correct
21	Correct	3 ms	1944 KB	Output is correct
22	Correct	3 ms	1944 KB	Output is correct
23	Correct	3 ms	1944 KB	Output is correct
24	Correct	4 ms	1992 KB	Output is correct
25	Correct	4 ms	1992 KB	Output is correct
26	Correct	3 ms	1992 KB	Output is correct
27	Correct	5 ms	1992 KB	Output is correct
28	Correct	5 ms	2064 KB	Output is correct
29	Correct	5 ms	2212 KB	Output is correct
30	Correct	4 ms	2212 KB	Output is correct
31	Correct	5 ms	2212 KB	Output is correct
32	Correct	5 ms	2212 KB	Output is correct
33	Correct	8 ms	2360 KB	Output is correct
34	Correct	6 ms	2372 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	2372 KB	Output is correct
2	Correct	3 ms	2372 KB	Output is correct
3	Correct	3 ms	2372 KB	Output is correct
4	Correct	3 ms	2372 KB	Output is correct
5	Correct	3 ms	2372 KB	Output is correct
6	Correct	3 ms	2372 KB	Output is correct
7	Correct	3 ms	2372 KB	Output is correct
8	Correct	3 ms	2372 KB	Output is correct
9	Correct	3 ms	2372 KB	Output is correct
10	Correct	3 ms	2372 KB	Output is correct
11	Correct	3 ms	2372 KB	Output is correct
12	Correct	3 ms	2372 KB	Output is correct
13	Correct	3 ms	2372 KB	Output is correct
14	Correct	3 ms	2372 KB	Output is correct
15	Correct	3 ms	2372 KB	Output is correct
16	Correct	3 ms	2372 KB	Output is correct
17	Correct	4 ms	2372 KB	Output is correct
18	Correct	3 ms	2372 KB	Output is correct
19	Correct	3 ms	2372 KB	Output is correct
20	Correct	3 ms	2372 KB	Output is correct
21	Correct	3 ms	2372 KB	Output is correct
22	Correct	3 ms	2372 KB	Output is correct
23	Correct	3 ms	2372 KB	Output is correct
24	Correct	4 ms	2372 KB	Output is correct
25	Correct	3 ms	2372 KB	Output is correct
26	Correct	3 ms	2372 KB	Output is correct
27	Correct	3 ms	2372 KB	Output is correct
28	Correct	3 ms	2372 KB	Output is correct
29	Correct	5 ms	2604 KB	Output is correct
30	Correct	4 ms	2604 KB	Output is correct
31	Correct	4 ms	2604 KB	Output is correct
32	Correct	3 ms	2604 KB	Output is correct
33	Correct	7 ms	2656 KB	Output is correct
34	Correct	5 ms	2668 KB	Output is correct
35	Correct	11 ms	2808 KB	Output is correct
36	Correct	4 ms	2808 KB	Output is correct
37	Correct	11 ms	3068 KB	Output is correct
38	Correct	13 ms	3356 KB	Output is correct
39	Correct	11 ms	3492 KB	Output is correct
40	Correct	11 ms	3760 KB	Output is correct
41	Correct	17 ms	4148 KB	Output is correct
42	Correct	13 ms	4376 KB	Output is correct
43	Correct	13 ms	4524 KB	Output is correct
44	Correct	13 ms	4736 KB	Output is correct
45	Correct	15 ms	5312 KB	Output is correct
46	Correct	13 ms	5408 KB	Output is correct

Subtask #5
43.0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	5408 KB	Output is correct
2	Correct	3 ms	5408 KB	Output is correct
3	Correct	3 ms	5408 KB	Output is correct
4	Correct	3 ms	5408 KB	Output is correct
5	Correct	3 ms	5408 KB	Output is correct
6	Correct	3 ms	5408 KB	Output is correct
7	Correct	3 ms	5408 KB	Output is correct
8	Correct	3 ms	5408 KB	Output is correct
9	Correct	4 ms	5408 KB	Output is correct
10	Correct	3 ms	5408 KB	Output is correct
11	Correct	3 ms	5408 KB	Output is correct
12	Correct	3 ms	5408 KB	Output is correct
13	Correct	4 ms	5408 KB	Output is correct
14	Correct	4 ms	5408 KB	Output is correct
15	Correct	3 ms	5408 KB	Output is correct
16	Correct	4 ms	5408 KB	Output is correct
17	Correct	4 ms	5408 KB	Output is correct
18	Correct	4 ms	5408 KB	Output is correct
19	Correct	4 ms	5408 KB	Output is correct
20	Correct	3 ms	5408 KB	Output is correct
21	Correct	3 ms	5408 KB	Output is correct
22	Correct	3 ms	5408 KB	Output is correct
23	Correct	3 ms	5408 KB	Output is correct
24	Correct	4 ms	5408 KB	Output is correct
25	Correct	4 ms	5408 KB	Output is correct
26	Correct	5 ms	5408 KB	Output is correct
27	Correct	3 ms	5408 KB	Output is correct
28	Correct	3 ms	5408 KB	Output is correct
29	Correct	5 ms	5408 KB	Output is correct
30	Correct	4 ms	5408 KB	Output is correct
31	Correct	5 ms	5408 KB	Output is correct
32	Correct	5 ms	5408 KB	Output is correct
33	Correct	8 ms	5632 KB	Output is correct
34	Correct	7 ms	5632 KB	Output is correct
35	Correct	11 ms	5676 KB	Output is correct
36	Correct	4 ms	5676 KB	Output is correct
37	Correct	11 ms	5936 KB	Output is correct
38	Correct	12 ms	6256 KB	Output is correct
39	Correct	11 ms	6392 KB	Output is correct
40	Correct	11 ms	6660 KB	Output is correct
41	Correct	11 ms	7048 KB	Output is correct
42	Correct	8 ms	7184 KB	Output is correct
43	Correct	8 ms	7396 KB	Output is correct
44	Correct	8 ms	7604 KB	Output is correct
45	Correct	18 ms	8196 KB	Output is correct
46	Correct	13 ms	8284 KB	Output is correct
47	Correct	19 ms	9004 KB	Output is correct
48	Correct	10 ms	9004 KB	Output is correct
49	Correct	10 ms	9004 KB	Output is correct
50	Correct	7 ms	9004 KB	Output is correct
51	Correct	24 ms	10172 KB	Output is correct
52	Correct	24 ms	10592 KB	Output is correct
53	Correct	14 ms	10592 KB	Output is correct
54	Correct	4 ms	10592 KB	Output is correct
55	Correct	5 ms	10592 KB	Output is correct
56	Correct	13 ms	10784 KB	Output is correct
57	Correct	5 ms	10784 KB	Output is correct
58	Correct	11 ms	10784 KB	Output is correct
59	Correct	14 ms	10784 KB	Output is correct
60	Correct	11 ms	10876 KB	Output is correct
61	Correct	11 ms	11084 KB	Output is correct
62	Correct	17 ms	11972 KB	Output is correct
63	Correct	50 ms	13660 KB	Output is correct
64	Correct	57 ms	13924 KB	Output is correct
65	Correct	70 ms	14152 KB	Output is correct
66	Correct	163 ms	16460 KB	Output is correct
67	Correct	99 ms	16504 KB	Output is correct

답안 #76361

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