답안 #483871

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
483871	2021-11-01T06:57:53 Z	Sohsoh84	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	100 / 100	866 ms	48056 KB

skyscraper

//: // ////: ///  / : //// / :
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<ll, pll> plll;

#define all(x)			(x).begin(),(x).end()
#define X			first
#define Y			second
#define sep			' '
#define endl			'\n'
#define debug(x)		cerr << #x << ": " <<  x << endl;

const ll MAXN = 30000 + 10;
const ll SQ = 170;
const ll INF = 1e18;

vector<int> vec[MAXN];
ll dist[MAXN][SQ], B[MAXN], P[MAXN], n, m;
bool F[MAXN][SQ];
priority_queue<plll, vector<plll>, greater<plll>> pq;

inline void update(int v, int p, int d) {
	if (d < dist[v][p]) {
		dist[v][p] = d;
		pq.push({d, {v, p}});
	}
}

inline void dijkstra() {
	while (!pq.empty()) {
		int v = pq.top().Y.X, p = pq.top().Y.Y, d = pq.top().X;
		pq.pop();
		if (d != dist[v][p]) continue;
		
		if (p) {
			update(v, 0, d);
			if (v + p < n) update(v + p, p, d + 1);
			if (v - p >= 0) update(v - p, p, d + 1);
		} else {
			for (int i = 1; i < SQ; i++)
				if (F[v][i])
					update(v, i, d);
			for (int e : vec[v]) {
				int ind = 0;
				for (int u = v + e; u < n; u += e)
					ind++, update(u, 0, d + ind); //
			
				ind = 0;
				for (int u = v - e; u >= 0; u -= e)
					ind++, update(u, 0, d + ind); //
			}
		}
	}
}

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	cin >> n >> m;
	for (int i = 0; i < m; i++) {
		cin >> B[i] >> P[i];
		if (P[i] >= SQ) vec[B[i]].push_back(P[i]);
		else F[B[i]][P[i]] = true;
	}

	for (int i = 0; i < n; i++)
		memset(dist[i], 63, sizeof dist[i]);

	pq.push({0, {B[0], 0}});
	dist[B[0]][0] = 0;
	dijkstra();

	cout << (dist[B[1]][0] > INF ? -1 : dist[B[1]][0]) << endl;
	return 0;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	972 KB	Output is correct
2	Correct	1 ms	972 KB	Output is correct
3	Correct	1 ms	972 KB	Output is correct
4	Correct	1 ms	972 KB	Output is correct
5	Correct	1 ms	1020 KB	Output is correct
6	Correct	1 ms	972 KB	Output is correct
7	Correct	1 ms	972 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	972 KB	Output is correct
2	Correct	1 ms	972 KB	Output is correct
3	Correct	1 ms	972 KB	Output is correct
4	Correct	1 ms	972 KB	Output is correct
5	Correct	1 ms	972 KB	Output is correct
6	Correct	1 ms	972 KB	Output is correct
7	Correct	1 ms	972 KB	Output is correct
8	Correct	1 ms	1020 KB	Output is correct
9	Correct	1 ms	1100 KB	Output is correct
10	Correct	1 ms	1100 KB	Output is correct
11	Correct	2 ms	1228 KB	Output is correct
12	Correct	1 ms	1100 KB	Output is correct
13	Correct	1 ms	1228 KB	Output is correct
14	Correct	2 ms	1308 KB	Output is correct
15	Correct	2 ms	1228 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	972 KB	Output is correct
2	Correct	1 ms	1028 KB	Output is correct
3	Correct	1 ms	972 KB	Output is correct
4	Correct	1 ms	972 KB	Output is correct
5	Correct	1 ms	972 KB	Output is correct
6	Correct	1 ms	972 KB	Output is correct
7	Correct	1 ms	972 KB	Output is correct
8	Correct	1 ms	972 KB	Output is correct
9	Correct	1 ms	1100 KB	Output is correct
10	Correct	1 ms	1152 KB	Output is correct
11	Correct	2 ms	1228 KB	Output is correct
12	Correct	1 ms	1228 KB	Output is correct
13	Correct	1 ms	1228 KB	Output is correct
14	Correct	2 ms	1296 KB	Output is correct
15	Correct	2 ms	1228 KB	Output is correct
16	Correct	1 ms	1356 KB	Output is correct
17	Correct	3 ms	2252 KB	Output is correct
18	Correct	2 ms	3596 KB	Output is correct
19	Correct	2 ms	3844 KB	Output is correct
20	Correct	3 ms	4044 KB	Output is correct
21	Correct	1 ms	1612 KB	Output is correct
22	Correct	2 ms	3532 KB	Output is correct
23	Correct	3 ms	3404 KB	Output is correct
24	Correct	4 ms	3852 KB	Output is correct
25	Correct	3 ms	3788 KB	Output is correct
26	Correct	3 ms	3916 KB	Output is correct
27	Correct	2 ms	3788 KB	Output is correct
28	Correct	3 ms	3788 KB	Output is correct
29	Correct	11 ms	3776 KB	Output is correct
30	Correct	4 ms	3660 KB	Output is correct
31	Correct	6 ms	3660 KB	Output is correct
32	Correct	4 ms	3660 KB	Output is correct
33	Correct	15 ms	3856 KB	Output is correct
34	Correct	14 ms	3788 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1024 KB	Output is correct
2	Correct	1 ms	972 KB	Output is correct
3	Correct	1 ms	1024 KB	Output is correct
4	Correct	1 ms	972 KB	Output is correct
5	Correct	1 ms	972 KB	Output is correct
6	Correct	1 ms	972 KB	Output is correct
7	Correct	1 ms	972 KB	Output is correct
8	Correct	1 ms	972 KB	Output is correct
9	Correct	1 ms	1100 KB	Output is correct
10	Correct	1 ms	1100 KB	Output is correct
11	Correct	2 ms	1228 KB	Output is correct
12	Correct	1 ms	1100 KB	Output is correct
13	Correct	1 ms	1228 KB	Output is correct
14	Correct	2 ms	1288 KB	Output is correct
15	Correct	2 ms	1228 KB	Output is correct
16	Correct	2 ms	1280 KB	Output is correct
17	Correct	3 ms	2252 KB	Output is correct
18	Correct	2 ms	3532 KB	Output is correct
19	Correct	2 ms	3788 KB	Output is correct
20	Correct	2 ms	4084 KB	Output is correct
21	Correct	2 ms	1612 KB	Output is correct
22	Correct	2 ms	3532 KB	Output is correct
23	Correct	2 ms	3332 KB	Output is correct
24	Correct	3 ms	3916 KB	Output is correct
25	Correct	3 ms	3788 KB	Output is correct
26	Correct	3 ms	3916 KB	Output is correct
27	Correct	2 ms	3788 KB	Output is correct
28	Correct	3 ms	3788 KB	Output is correct
29	Correct	8 ms	3660 KB	Output is correct
30	Correct	4 ms	3660 KB	Output is correct
31	Correct	5 ms	3660 KB	Output is correct
32	Correct	7 ms	3660 KB	Output is correct
33	Correct	15 ms	3788 KB	Output is correct
34	Correct	18 ms	3848 KB	Output is correct
35	Correct	13 ms	4300 KB	Output is correct
36	Correct	3 ms	2764 KB	Output is correct
37	Correct	20 ms	4856 KB	Output is correct
38	Correct	19 ms	5228 KB	Output is correct
39	Correct	26 ms	5196 KB	Output is correct
40	Correct	25 ms	5196 KB	Output is correct
41	Correct	19 ms	5196 KB	Output is correct
42	Correct	6 ms	4544 KB	Output is correct
43	Correct	6 ms	4428 KB	Output is correct
44	Correct	8 ms	4684 KB	Output is correct
45	Correct	59 ms	5428 KB	Output is correct
46	Correct	50 ms	5460 KB	Output is correct

Subtask #5
43.0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	972 KB	Output is correct
2	Correct	1 ms	1024 KB	Output is correct
3	Correct	1 ms	972 KB	Output is correct
4	Correct	1 ms	972 KB	Output is correct
5	Correct	1 ms	972 KB	Output is correct
6	Correct	1 ms	972 KB	Output is correct
7	Correct	1 ms	1100 KB	Output is correct
8	Correct	1 ms	972 KB	Output is correct
9	Correct	1 ms	1100 KB	Output is correct
10	Correct	1 ms	1100 KB	Output is correct
11	Correct	3 ms	1228 KB	Output is correct
12	Correct	2 ms	1228 KB	Output is correct
13	Correct	1 ms	1228 KB	Output is correct
14	Correct	2 ms	1228 KB	Output is correct
15	Correct	2 ms	1228 KB	Output is correct
16	Correct	1 ms	1356 KB	Output is correct
17	Correct	3 ms	2184 KB	Output is correct
18	Correct	2 ms	3596 KB	Output is correct
19	Correct	2 ms	3788 KB	Output is correct
20	Correct	3 ms	4044 KB	Output is correct
21	Correct	2 ms	1668 KB	Output is correct
22	Correct	2 ms	3532 KB	Output is correct
23	Correct	3 ms	3404 KB	Output is correct
24	Correct	3 ms	3916 KB	Output is correct
25	Correct	4 ms	3720 KB	Output is correct
26	Correct	4 ms	3920 KB	Output is correct
27	Correct	3 ms	3852 KB	Output is correct
28	Correct	4 ms	3788 KB	Output is correct
29	Correct	9 ms	3772 KB	Output is correct
30	Correct	4 ms	3660 KB	Output is correct
31	Correct	5 ms	3660 KB	Output is correct
32	Correct	7 ms	3732 KB	Output is correct
33	Correct	18 ms	3860 KB	Output is correct
34	Correct	14 ms	3788 KB	Output is correct
35	Correct	13 ms	4300 KB	Output is correct
36	Correct	4 ms	2764 KB	Output is correct
37	Correct	20 ms	4812 KB	Output is correct
38	Correct	21 ms	5216 KB	Output is correct
39	Correct	19 ms	5252 KB	Output is correct
40	Correct	20 ms	5196 KB	Output is correct
41	Correct	23 ms	5196 KB	Output is correct
42	Correct	9 ms	4512 KB	Output is correct
43	Correct	6 ms	4428 KB	Output is correct
44	Correct	5 ms	4684 KB	Output is correct
45	Correct	55 ms	5380 KB	Output is correct
46	Correct	49 ms	5384 KB	Output is correct
47	Correct	91 ms	21192 KB	Output is correct
48	Correct	18 ms	33484 KB	Output is correct
49	Correct	20 ms	36108 KB	Output is correct
50	Correct	19 ms	39236 KB	Output is correct
51	Correct	65 ms	43776 KB	Output is correct
52	Correct	70 ms	43952 KB	Output is correct
53	Correct	32 ms	42244 KB	Output is correct
54	Correct	19 ms	40976 KB	Output is correct
55	Correct	20 ms	40888 KB	Output is correct
56	Correct	27 ms	46584 KB	Output is correct
57	Correct	99 ms	45296 KB	Output is correct
58	Correct	27 ms	41528 KB	Output is correct
59	Correct	35 ms	41724 KB	Output is correct
60	Correct	35 ms	41932 KB	Output is correct
61	Correct	30 ms	41812 KB	Output is correct
62	Correct	53 ms	42644 KB	Output is correct
63	Correct	63 ms	45072 KB	Output is correct
64	Correct	70 ms	45088 KB	Output is correct
65	Correct	330 ms	45016 KB	Output is correct
66	Correct	786 ms	48052 KB	Output is correct
67	Correct	866 ms	48056 KB	Output is correct

답안 #483871

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