Submission #843750

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
843750	2023-09-04T13:57:57 Z	Tob	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	596 ms	28240 KB

skyscraper

#include <bits/stdc++.h>

#define ll long long
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define pb push_back
#define FIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)

using namespace std;

typedef pair <int, int> pii;

const int N = 30007, B = 200, inf = 1e9;

int n, m;
int b[N], p[N], dis[N*B];
vector <int> td[N], gt[N];
set <pii> s;

int En(int x, int y = 0) {return y*N + x;}
pii De(int x) {return {x%N, x/N};}

void Vis(int x, int y, int w) {
	if (dis[x] + w < dis[y]) {
		if (dis[y] != inf) s.erase({dis[y], y});
		dis[y] = dis[x] + w;
		s.insert({dis[y], y});
	}
}

int main () {
	FIO;
	cin >> n >> m;
	
	for (int i = 0; i < m; i++) {
		cin >> b[i] >> p[i];
		if (p[i] < B) gt[b[i]].pb(p[i]);
		else td[b[i]].pb(p[i]);
	}
	
	for (int i = 0; i < N*B; i++) dis[i] = inf;
	s.insert({0, b[0]});
	dis[b[0]] = 0;
	while (!s.empty()) {
		auto p = s.begin();
		int x = (*p).S;
		s.erase(p);
		pii de = De(x);
		int A = de.F, C = de.S;
		if (C > 0) {
			if (A-C >= 0) Vis(x, En(A-C, C), 1);
			if (A+C < n) Vis(x, En(A+C, C), 1);
			Vis(x, A, 0);
		}
		else {
			for (auto P : gt[x]) Vis(x, En(x, P), 0);
			for (auto P : td[x]) {
				for (int j = A-P, k = 1; j >= 0; j -= P, k++) Vis(x, j, k);
				for (int j = A+P, k = 1; j < n; j += P, k++) Vis(x, j, k);
			}
		}
	}
	if (dis[b[1]] != inf) cout << dis[b[1]] << "\n";
	else cout << "-1\n";

	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	25180 KB	Output is correct
2	Correct	8 ms	25180 KB	Output is correct
3	Correct	5 ms	25176 KB	Output is correct
4	Correct	8 ms	25180 KB	Output is correct
5	Correct	5 ms	25180 KB	Output is correct
6	Correct	7 ms	25180 KB	Output is correct
7	Correct	5 ms	25180 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	25180 KB	Output is correct
2	Correct	5 ms	25184 KB	Output is correct
3	Correct	5 ms	25356 KB	Output is correct
4	Correct	5 ms	25180 KB	Output is correct
5	Correct	5 ms	25180 KB	Output is correct
6	Correct	5 ms	25240 KB	Output is correct
7	Correct	6 ms	25176 KB	Output is correct
8	Correct	5 ms	25176 KB	Output is correct
9	Correct	5 ms	25176 KB	Output is correct
10	Correct	5 ms	25180 KB	Output is correct
11	Correct	6 ms	25688 KB	Output is correct
12	Correct	5 ms	25180 KB	Output is correct
13	Correct	5 ms	25180 KB	Output is correct
14	Correct	6 ms	25436 KB	Output is correct
15	Correct	6 ms	25436 KB	Output is correct

Subtask #3
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	25264 KB	Output is correct
2	Correct	5 ms	25180 KB	Output is correct
3	Correct	5 ms	25176 KB	Output is correct
4	Correct	5 ms	25180 KB	Output is correct
5	Correct	5 ms	25180 KB	Output is correct
6	Correct	5 ms	25180 KB	Output is correct
7	Correct	5 ms	25180 KB	Output is correct
8	Correct	5 ms	25176 KB	Output is correct
9	Correct	6 ms	25180 KB	Output is correct
10	Correct	5 ms	25272 KB	Output is correct
11	Correct	6 ms	25436 KB	Output is correct
12	Correct	5 ms	25180 KB	Output is correct
13	Correct	5 ms	25176 KB	Output is correct
14	Correct	6 ms	25436 KB	Output is correct
15	Correct	6 ms	25268 KB	Output is correct
16	Correct	6 ms	25280 KB	Output is correct
17	Correct	7 ms	25300 KB	Output is correct
18	Correct	5 ms	25180 KB	Output is correct
19	Correct	5 ms	25180 KB	Output is correct
20	Correct	6 ms	25444 KB	Output is correct
21	Correct	5 ms	25176 KB	Output is correct
22	Correct	5 ms	25176 KB	Output is correct
23	Correct	6 ms	25180 KB	Output is correct
24	Correct	6 ms	25436 KB	Output is correct
25	Correct	6 ms	25180 KB	Output is correct
26	Correct	6 ms	25180 KB	Output is correct
27	Correct	5 ms	25180 KB	Output is correct
28	Correct	6 ms	25328 KB	Output is correct
29	Correct	10 ms	25272 KB	Output is correct
30	Correct	7 ms	25180 KB	Output is correct
31	Correct	8 ms	25264 KB	Output is correct
32	Correct	7 ms	25180 KB	Output is correct
33	Correct	16 ms	25484 KB	Output is correct
34	Correct	15 ms	25436 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	25176 KB	Output is correct
2	Correct	5 ms	25180 KB	Output is correct
3	Correct	5 ms	25224 KB	Output is correct
4	Correct	5 ms	25180 KB	Output is correct
5	Correct	5 ms	25232 KB	Output is correct
6	Correct	5 ms	25248 KB	Output is correct
7	Correct	5 ms	25180 KB	Output is correct
8	Correct	5 ms	25180 KB	Output is correct
9	Correct	5 ms	25180 KB	Output is correct
10	Correct	5 ms	25244 KB	Output is correct
11	Correct	6 ms	25304 KB	Output is correct
12	Correct	5 ms	25180 KB	Output is correct
13	Correct	5 ms	25180 KB	Output is correct
14	Correct	6 ms	25264 KB	Output is correct
15	Correct	6 ms	25436 KB	Output is correct
16	Correct	6 ms	25436 KB	Output is correct
17	Correct	7 ms	25436 KB	Output is correct
18	Correct	5 ms	25180 KB	Output is correct
19	Correct	5 ms	25180 KB	Output is correct
20	Correct	7 ms	25316 KB	Output is correct
21	Correct	5 ms	25432 KB	Output is correct
22	Correct	6 ms	25180 KB	Output is correct
23	Correct	6 ms	25180 KB	Output is correct
24	Correct	7 ms	25288 KB	Output is correct
25	Correct	6 ms	25316 KB	Output is correct
26	Correct	5 ms	25176 KB	Output is correct
27	Correct	5 ms	25180 KB	Output is correct
28	Correct	6 ms	25436 KB	Output is correct
29	Correct	10 ms	25180 KB	Output is correct
30	Correct	6 ms	25180 KB	Output is correct
31	Correct	8 ms	25180 KB	Output is correct
32	Correct	9 ms	25180 KB	Output is correct
33	Correct	15 ms	25436 KB	Output is correct
34	Correct	15 ms	25436 KB	Output is correct
35	Correct	17 ms	25948 KB	Output is correct
36	Correct	7 ms	25488 KB	Output is correct
37	Correct	21 ms	26040 KB	Output is correct
38	Correct	21 ms	25948 KB	Output is correct
39	Correct	20 ms	25948 KB	Output is correct
40	Correct	19 ms	25948 KB	Output is correct
41	Correct	20 ms	26088 KB	Output is correct
42	Correct	9 ms	25692 KB	Output is correct
43	Correct	8 ms	25692 KB	Output is correct
44	Correct	10 ms	25692 KB	Output is correct
45	Correct	48 ms	26752 KB	Output is correct
46	Correct	48 ms	26712 KB	Output is correct

Subtask #5
43.0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	25180 KB	Output is correct
2	Correct	5 ms	25180 KB	Output is correct
3	Correct	5 ms	25180 KB	Output is correct
4	Correct	5 ms	25216 KB	Output is correct
5	Correct	5 ms	25180 KB	Output is correct
6	Correct	5 ms	25180 KB	Output is correct
7	Correct	5 ms	25180 KB	Output is correct
8	Correct	5 ms	25176 KB	Output is correct
9	Correct	5 ms	25180 KB	Output is correct
10	Correct	5 ms	25176 KB	Output is correct
11	Correct	9 ms	25436 KB	Output is correct
12	Correct	5 ms	25180 KB	Output is correct
13	Correct	5 ms	25180 KB	Output is correct
14	Correct	6 ms	25436 KB	Output is correct
15	Correct	6 ms	25292 KB	Output is correct
16	Correct	5 ms	25180 KB	Output is correct
17	Correct	7 ms	25280 KB	Output is correct
18	Correct	5 ms	25180 KB	Output is correct
19	Correct	5 ms	25180 KB	Output is correct
20	Correct	5 ms	25436 KB	Output is correct
21	Correct	5 ms	25180 KB	Output is correct
22	Correct	5 ms	25180 KB	Output is correct
23	Correct	6 ms	25180 KB	Output is correct
24	Correct	6 ms	25436 KB	Output is correct
25	Correct	5 ms	25296 KB	Output is correct
26	Correct	6 ms	25432 KB	Output is correct
27	Correct	5 ms	25180 KB	Output is correct
28	Correct	6 ms	25436 KB	Output is correct
29	Correct	12 ms	25176 KB	Output is correct
30	Correct	6 ms	25180 KB	Output is correct
31	Correct	8 ms	25180 KB	Output is correct
32	Correct	7 ms	25180 KB	Output is correct
33	Correct	15 ms	25484 KB	Output is correct
34	Correct	15 ms	25488 KB	Output is correct
35	Correct	15 ms	25944 KB	Output is correct
36	Correct	7 ms	25436 KB	Output is correct
37	Correct	21 ms	25864 KB	Output is correct
38	Correct	20 ms	25948 KB	Output is correct
39	Correct	20 ms	25944 KB	Output is correct
40	Correct	20 ms	25944 KB	Output is correct
41	Correct	20 ms	25944 KB	Output is correct
42	Correct	8 ms	25692 KB	Output is correct
43	Correct	8 ms	25724 KB	Output is correct
44	Correct	8 ms	25692 KB	Output is correct
45	Correct	48 ms	26772 KB	Output is correct
46	Correct	47 ms	26748 KB	Output is correct
47	Correct	62 ms	26244 KB	Output is correct
48	Correct	9 ms	25948 KB	Output is correct
49	Correct	11 ms	25948 KB	Output is correct
50	Correct	8 ms	25692 KB	Output is correct
51	Correct	40 ms	26716 KB	Output is correct
52	Correct	43 ms	26712 KB	Output is correct
53	Correct	15 ms	25948 KB	Output is correct
54	Correct	6 ms	25180 KB	Output is correct
55	Correct	6 ms	25180 KB	Output is correct
56	Correct	12 ms	26460 KB	Output is correct
57	Correct	51 ms	25688 KB	Output is correct
58	Correct	11 ms	25692 KB	Output is correct
59	Correct	14 ms	25692 KB	Output is correct
60	Correct	20 ms	25844 KB	Output is correct
61	Correct	19 ms	25692 KB	Output is correct
62	Correct	25 ms	26712 KB	Output is correct
63	Correct	50 ms	26972 KB	Output is correct
64	Correct	53 ms	27144 KB	Output is correct
65	Correct	202 ms	27240 KB	Output is correct
66	Correct	593 ms	28072 KB	Output is correct
67	Correct	596 ms	28240 KB	Output is correct

Submission #843750

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