Submission #698335

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
698335	2023-02-13T07:07:40 Z	jk410	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	100 / 100	119 ms	76612 KB

skyscraper

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx2")
#define all(v) v.begin(),v.end()
#define compress(v) v.erase(unique(all(v)),v.end())
using namespace std;
const int INF = (int)1e9;
struct edge {
	int v, cost;
	bool operator<(const edge& tmp)const {
		return cost > tmp.cost;
	}
};
int N,M,SQRT;
int B[30000];
vector<int> P[30000];
bool Used[30000][173];
vector<edge> Edge[30000];
int Dist[30000];
int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin >> N >> M;
	SQRT = (int)sqrt(N);
	for (int i = 0; i < M; i++) {
		int p;
		cin >> B[i] >> p;
		if (p < SQRT)
			P[B[i]].push_back(p);
		else {
			for (int j = 1; B[i] - j * p >= 0; j++)
				Edge[B[i]].push_back({ B[i] - j * p,j });
			for (int j = 1; B[i] + j * p < N; j++)
				Edge[B[i]].push_back({ B[i] + j * p,j });
		}
	}
	for (int i = 0; i < N; i++) {
		for (int j : P[i]) {
			for (int k = 1; i - k * j >= 0; k++) {
				Edge[i].push_back({ i - k * j,k });
				if (Used[i - k * j][j])
					break;
				Used[i - k * j][j] = true;
			}
		}
	}
	for (int i = N - 1; i >= 0; i--) {
		fill(Used[i], Used[i] + SQRT, false);
		for (int j : P[i]) {
			for (int k = 1; i + k * j < N; k++) {
				Edge[i].push_back({ i + k * j,k });
				if (Used[i + k * j][j])
					break;
				Used[i + k * j][j] = true;
			}
		}
	}
	priority_queue<edge> q;
	fill(Dist, Dist + N, INF);
	Dist[B[0]] = 0;
	q.push({ B[0],0});
	while (!q.empty()) {
		auto t = q.top();
		q.pop();
		if (Dist[t.v] < t.cost)
			continue;
		for (edge i : Edge[t.v]) {
			if (Dist[i.v] > t.cost + i.cost) {
				Dist[i.v] = t.cost + i.cost;
				q.push({ i.v,Dist[i.v] });
			}
		}
	}
	int ans = Dist[B[1]];
	if (ans == INF)
		ans = -1;
	cout << ans;
	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1748 KB	Output is correct
2	Correct	1 ms	1748 KB	Output is correct
3	Correct	1 ms	1748 KB	Output is correct
4	Correct	1 ms	1748 KB	Output is correct
5	Correct	1 ms	1748 KB	Output is correct
6	Correct	1 ms	1756 KB	Output is correct
7	Correct	1 ms	1716 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1748 KB	Output is correct
2	Correct	1 ms	1748 KB	Output is correct
3	Correct	2 ms	1748 KB	Output is correct
4	Correct	2 ms	1748 KB	Output is correct
5	Correct	2 ms	1620 KB	Output is correct
6	Correct	2 ms	1748 KB	Output is correct
7	Correct	1 ms	1748 KB	Output is correct
8	Correct	1 ms	1752 KB	Output is correct
9	Correct	1 ms	1748 KB	Output is correct
10	Correct	1 ms	1748 KB	Output is correct
11	Correct	2 ms	1748 KB	Output is correct
12	Correct	2 ms	1748 KB	Output is correct
13	Correct	1 ms	1748 KB	Output is correct
14	Correct	2 ms	1748 KB	Output is correct
15	Correct	1 ms	1764 KB	Output is correct

Subtask #3
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1752 KB	Output is correct
2	Correct	1 ms	1752 KB	Output is correct
3	Correct	2 ms	1748 KB	Output is correct
4	Correct	1 ms	1748 KB	Output is correct
5	Correct	1 ms	1748 KB	Output is correct
6	Correct	1 ms	1748 KB	Output is correct
7	Correct	1 ms	1748 KB	Output is correct
8	Correct	1 ms	1748 KB	Output is correct
9	Correct	1 ms	1748 KB	Output is correct
10	Correct	1 ms	1748 KB	Output is correct
11	Correct	2 ms	1748 KB	Output is correct
12	Correct	1 ms	1748 KB	Output is correct
13	Correct	1 ms	1748 KB	Output is correct
14	Correct	1 ms	1756 KB	Output is correct
15	Correct	1 ms	1760 KB	Output is correct
16	Correct	1 ms	1748 KB	Output is correct
17	Correct	2 ms	2004 KB	Output is correct
18	Correct	2 ms	2132 KB	Output is correct
19	Correct	1 ms	2132 KB	Output is correct
20	Correct	2 ms	2260 KB	Output is correct
21	Correct	1 ms	1760 KB	Output is correct
22	Correct	2 ms	2132 KB	Output is correct
23	Correct	2 ms	2004 KB	Output is correct
24	Correct	2 ms	2260 KB	Output is correct
25	Correct	2 ms	2260 KB	Output is correct
26	Correct	2 ms	2260 KB	Output is correct
27	Correct	3 ms	2132 KB	Output is correct
28	Correct	2 ms	2260 KB	Output is correct
29	Correct	3 ms	2772 KB	Output is correct
30	Correct	2 ms	2388 KB	Output is correct
31	Correct	2 ms	2516 KB	Output is correct
32	Correct	2 ms	2388 KB	Output is correct
33	Correct	4 ms	3540 KB	Output is correct
34	Correct	4 ms	3540 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1748 KB	Output is correct
2	Correct	1 ms	1748 KB	Output is correct
3	Correct	1 ms	1748 KB	Output is correct
4	Correct	1 ms	1748 KB	Output is correct
5	Correct	1 ms	1748 KB	Output is correct
6	Correct	1 ms	1748 KB	Output is correct
7	Correct	1 ms	1748 KB	Output is correct
8	Correct	2 ms	1752 KB	Output is correct
9	Correct	2 ms	1748 KB	Output is correct
10	Correct	1 ms	1748 KB	Output is correct
11	Correct	1 ms	1748 KB	Output is correct
12	Correct	1 ms	1748 KB	Output is correct
13	Correct	1 ms	1748 KB	Output is correct
14	Correct	2 ms	1760 KB	Output is correct
15	Correct	2 ms	1760 KB	Output is correct
16	Correct	2 ms	1752 KB	Output is correct
17	Correct	3 ms	2004 KB	Output is correct
18	Correct	2 ms	2132 KB	Output is correct
19	Correct	2 ms	2132 KB	Output is correct
20	Correct	3 ms	2260 KB	Output is correct
21	Correct	1 ms	1760 KB	Output is correct
22	Correct	2 ms	2132 KB	Output is correct
23	Correct	2 ms	2132 KB	Output is correct
24	Correct	2 ms	2260 KB	Output is correct
25	Correct	3 ms	2260 KB	Output is correct
26	Correct	2 ms	2260 KB	Output is correct
27	Correct	2 ms	2132 KB	Output is correct
28	Correct	2 ms	2260 KB	Output is correct
29	Correct	3 ms	2772 KB	Output is correct
30	Correct	2 ms	2388 KB	Output is correct
31	Correct	2 ms	2516 KB	Output is correct
32	Correct	3 ms	2388 KB	Output is correct
33	Correct	4 ms	3540 KB	Output is correct
34	Correct	4 ms	3584 KB	Output is correct
35	Correct	7 ms	3436 KB	Output is correct
36	Correct	2 ms	2132 KB	Output is correct
37	Correct	9 ms	4692 KB	Output is correct
38	Correct	12 ms	4436 KB	Output is correct
39	Correct	9 ms	4436 KB	Output is correct
40	Correct	9 ms	4564 KB	Output is correct
41	Correct	10 ms	4564 KB	Output is correct
42	Correct	6 ms	3348 KB	Output is correct
43	Correct	5 ms	3152 KB	Output is correct
44	Correct	6 ms	3280 KB	Output is correct
45	Correct	11 ms	7508 KB	Output is correct
46	Correct	11 ms	7524 KB	Output is correct

Subtask #5
43.0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	1700 KB	Output is correct
2	Correct	1 ms	1748 KB	Output is correct
3	Correct	1 ms	1748 KB	Output is correct
4	Correct	1 ms	1748 KB	Output is correct
5	Correct	1 ms	1748 KB	Output is correct
6	Correct	1 ms	1748 KB	Output is correct
7	Correct	1 ms	1752 KB	Output is correct
8	Correct	1 ms	1752 KB	Output is correct
9	Correct	1 ms	1748 KB	Output is correct
10	Correct	1 ms	1748 KB	Output is correct
11	Correct	2 ms	1748 KB	Output is correct
12	Correct	1 ms	1760 KB	Output is correct
13	Correct	2 ms	1748 KB	Output is correct
14	Correct	1 ms	1748 KB	Output is correct
15	Correct	1 ms	1748 KB	Output is correct
16	Correct	1 ms	1748 KB	Output is correct
17	Correct	2 ms	2004 KB	Output is correct
18	Correct	2 ms	2132 KB	Output is correct
19	Correct	2 ms	2132 KB	Output is correct
20	Correct	2 ms	2260 KB	Output is correct
21	Correct	1 ms	1748 KB	Output is correct
22	Correct	2 ms	2140 KB	Output is correct
23	Correct	2 ms	2132 KB	Output is correct
24	Correct	2 ms	2260 KB	Output is correct
25	Correct	2 ms	2148 KB	Output is correct
26	Correct	3 ms	2280 KB	Output is correct
27	Correct	2 ms	2132 KB	Output is correct
28	Correct	2 ms	2260 KB	Output is correct
29	Correct	3 ms	2772 KB	Output is correct
30	Correct	2 ms	2388 KB	Output is correct
31	Correct	2 ms	2516 KB	Output is correct
32	Correct	2 ms	2388 KB	Output is correct
33	Correct	4 ms	3540 KB	Output is correct
34	Correct	4 ms	3540 KB	Output is correct
35	Correct	7 ms	3412 KB	Output is correct
36	Correct	3 ms	2132 KB	Output is correct
37	Correct	9 ms	4768 KB	Output is correct
38	Correct	9 ms	4468 KB	Output is correct
39	Correct	9 ms	4436 KB	Output is correct
40	Correct	9 ms	4564 KB	Output is correct
41	Correct	9 ms	4580 KB	Output is correct
42	Correct	6 ms	3220 KB	Output is correct
43	Correct	5 ms	3152 KB	Output is correct
44	Correct	5 ms	3280 KB	Output is correct
45	Correct	11 ms	7508 KB	Output is correct
46	Correct	13 ms	7544 KB	Output is correct
47	Correct	24 ms	13904 KB	Output is correct
48	Correct	12 ms	8532 KB	Output is correct
49	Correct	10 ms	7892 KB	Output is correct
50	Correct	10 ms	8276 KB	Output is correct
51	Correct	28 ms	11316 KB	Output is correct
52	Correct	29 ms	11800 KB	Output is correct
53	Correct	16 ms	8992 KB	Output is correct
54	Correct	6 ms	7380 KB	Output is correct
55	Correct	8 ms	7888 KB	Output is correct
56	Correct	16 ms	9556 KB	Output is correct
57	Correct	31 ms	16100 KB	Output is correct
58	Correct	12 ms	8780 KB	Output is correct
59	Correct	13 ms	9248 KB	Output is correct
60	Correct	14 ms	9928 KB	Output is correct
61	Correct	13 ms	9032 KB	Output is correct
62	Correct	19 ms	12348 KB	Output is correct
63	Correct	49 ms	32720 KB	Output is correct
64	Correct	59 ms	40236 KB	Output is correct
65	Correct	76 ms	50248 KB	Output is correct
66	Correct	116 ms	74824 KB	Output is correct
67	Correct	119 ms	76612 KB	Output is correct

Submission #698335

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