Submission #510280

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
510280	2022-01-14T22:02:36 Z	thiago_bastos	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	57 / 100	1000 ms	37448 KB

skyscraper

#include "bits/stdc++.h"

using namespace std;

using i64 = long long;
using u64 = unsigned long long;
using i32 = int;
using u32 = unsigned;
using i16 = short;
using u16 = unsigned short;
using ld = long double;
using ii = pair<int, int>;

const int N = 3e4 + 100, INF = 1e9;

vector<int> P[N];
map<int, int> jumps[N];

void solve() {
	int n, m;

	cin >> n >> m;

	vector<int> cnt(n, INF);
	queue<ii> q;

	int x0 = -1, x1 = -1;

	for(int i = 0; i < m; ++i) {
		int b, p;
		cin >> b >> p;
		if(!i) x0 = b;
		else if(i == 1) x1 = b;
		for(int x = b % p; x < n; x += p) jumps[x][p] = -1;
		P[b].push_back(p);
	}

	while(!P[x0].empty()) {
		int k = P[x0].back();
		P[x0].pop_back();
		if(jumps[x0][k] == -1) {
			jumps[x0][k] = 0;
			q.emplace(x0, k);
		}
	}

	while(!q.empty()) {
		auto [x, p] = q.front();
		q.pop();
		int j = jumps[x][p];	
		cnt[x] = min(cnt[x], j);
		if(x == x1) break;
		if(x >= p && jumps[x - p][p] == -1) {
			jumps[x - p][p] = 1 + j;
			q.emplace(x - p, p);
		}
		if(x + p < n && jumps[x + p][p] == -1) {
			jumps[x + p][p] = 1 + j;
			q.emplace(x + p, p);
		}
		while(!P[x].empty()) {
			int k = P[x].back();
			P[x].pop_back();
			if(x >= k && jumps[x - k][k] == -1) {
				jumps[x - k][k] = 1 + j;
				q.emplace(x - k, k);
			}
			if(x + k < n && jumps[x + k][k] == -1) {
				jumps[x + k][k] = 1 + j;
				q.emplace(x + k, k);
			}
		}
	}

	if(cnt[x1] == INF) cout << "-1\n";
	else cout << cnt[x1] << '\n';
}

int main() {
	ios_base :: sync_with_stdio(false);
	cin.tie(0);
	int t = 1;
	//cin >> t;
	while(t--) solve();
	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2380 KB	Output is correct
2	Correct	1 ms	2380 KB	Output is correct
3	Correct	1 ms	2380 KB	Output is correct
4	Correct	1 ms	2380 KB	Output is correct
5	Correct	1 ms	2380 KB	Output is correct
6	Correct	1 ms	2380 KB	Output is correct
7	Correct	1 ms	2380 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2380 KB	Output is correct
2	Correct	1 ms	2380 KB	Output is correct
3	Correct	2 ms	2380 KB	Output is correct
4	Correct	1 ms	2380 KB	Output is correct
5	Correct	1 ms	2380 KB	Output is correct
6	Correct	1 ms	2380 KB	Output is correct
7	Correct	1 ms	2380 KB	Output is correct
8	Correct	1 ms	2380 KB	Output is correct
9	Correct	1 ms	2380 KB	Output is correct
10	Correct	2 ms	2508 KB	Output is correct
11	Correct	2 ms	2636 KB	Output is correct
12	Correct	2 ms	2380 KB	Output is correct
13	Correct	3 ms	2380 KB	Output is correct
14	Correct	3 ms	2636 KB	Output is correct
15	Correct	3 ms	2636 KB	Output is correct

Subtask #3
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2380 KB	Output is correct
2	Correct	1 ms	2380 KB	Output is correct
3	Correct	1 ms	2380 KB	Output is correct
4	Correct	1 ms	2380 KB	Output is correct
5	Correct	2 ms	2380 KB	Output is correct
6	Correct	1 ms	2380 KB	Output is correct
7	Correct	1 ms	2380 KB	Output is correct
8	Correct	1 ms	2380 KB	Output is correct
9	Correct	1 ms	2380 KB	Output is correct
10	Correct	1 ms	2380 KB	Output is correct
11	Correct	3 ms	2636 KB	Output is correct
12	Correct	3 ms	2380 KB	Output is correct
13	Correct	2 ms	2380 KB	Output is correct
14	Correct	3 ms	2636 KB	Output is correct
15	Correct	2 ms	2636 KB	Output is correct
16	Correct	2 ms	2508 KB	Output is correct
17	Correct	4 ms	3148 KB	Output is correct
18	Correct	2 ms	2764 KB	Output is correct
19	Correct	2 ms	2636 KB	Output is correct
20	Correct	19 ms	2572 KB	Output is correct
21	Correct	2 ms	2508 KB	Output is correct
22	Correct	2 ms	2636 KB	Output is correct
23	Correct	2 ms	2636 KB	Output is correct
24	Correct	4 ms	3020 KB	Output is correct
25	Correct	2 ms	2764 KB	Output is correct
26	Correct	27 ms	2812 KB	Output is correct
27	Correct	24 ms	2764 KB	Output is correct
28	Correct	6 ms	3532 KB	Output is correct
29	Correct	25 ms	5308 KB	Output is correct
30	Correct	5 ms	3148 KB	Output is correct
31	Correct	11 ms	3916 KB	Output is correct
32	Correct	7 ms	3548 KB	Output is correct
33	Correct	55 ms	8060 KB	Output is correct
34	Correct	48 ms	8012 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2380 KB	Output is correct
2	Correct	1 ms	2380 KB	Output is correct
3	Correct	1 ms	2380 KB	Output is correct
4	Correct	1 ms	2380 KB	Output is correct
5	Correct	2 ms	2380 KB	Output is correct
6	Correct	1 ms	2380 KB	Output is correct
7	Correct	1 ms	2380 KB	Output is correct
8	Correct	1 ms	2380 KB	Output is correct
9	Correct	1 ms	2380 KB	Output is correct
10	Correct	2 ms	2380 KB	Output is correct
11	Correct	2 ms	2636 KB	Output is correct
12	Correct	2 ms	2380 KB	Output is correct
13	Correct	2 ms	2380 KB	Output is correct
14	Correct	3 ms	2636 KB	Output is correct
15	Correct	4 ms	2696 KB	Output is correct
16	Correct	2 ms	2508 KB	Output is correct
17	Correct	4 ms	3148 KB	Output is correct
18	Correct	2 ms	2764 KB	Output is correct
19	Correct	2 ms	2636 KB	Output is correct
20	Correct	17 ms	2508 KB	Output is correct
21	Correct	2 ms	2508 KB	Output is correct
22	Correct	3 ms	2636 KB	Output is correct
23	Correct	3 ms	2764 KB	Output is correct
24	Correct	4 ms	3020 KB	Output is correct
25	Correct	2 ms	2764 KB	Output is correct
26	Correct	31 ms	2800 KB	Output is correct
27	Correct	24 ms	2772 KB	Output is correct
28	Correct	7 ms	3572 KB	Output is correct
29	Correct	25 ms	5316 KB	Output is correct
30	Correct	5 ms	3148 KB	Output is correct
31	Correct	10 ms	4008 KB	Output is correct
32	Correct	7 ms	3560 KB	Output is correct
33	Correct	63 ms	8040 KB	Output is correct
34	Correct	40 ms	8012 KB	Output is correct
35	Correct	34 ms	7504 KB	Output is correct
36	Correct	4 ms	3276 KB	Output is correct
37	Correct	71 ms	10820 KB	Output is correct
38	Correct	61 ms	10284 KB	Output is correct
39	Correct	49 ms	10120 KB	Output is correct
40	Correct	47 ms	10180 KB	Output is correct
41	Correct	55 ms	10340 KB	Output is correct
42	Correct	379 ms	3004 KB	Output is correct
43	Correct	393 ms	3096 KB	Output is correct
44	Correct	221 ms	2672 KB	Output is correct
45	Correct	527 ms	25676 KB	Output is correct
46	Correct	379 ms	25648 KB	Output is correct

Subtask #5
0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2380 KB	Output is correct
2	Correct	1 ms	2380 KB	Output is correct
3	Correct	1 ms	2380 KB	Output is correct
4	Correct	1 ms	2380 KB	Output is correct
5	Correct	1 ms	2380 KB	Output is correct
6	Correct	1 ms	2380 KB	Output is correct
7	Correct	1 ms	2380 KB	Output is correct
8	Correct	1 ms	2380 KB	Output is correct
9	Correct	2 ms	2380 KB	Output is correct
10	Correct	2 ms	2508 KB	Output is correct
11	Correct	2 ms	2636 KB	Output is correct
12	Correct	3 ms	2380 KB	Output is correct
13	Correct	2 ms	2380 KB	Output is correct
14	Correct	3 ms	2636 KB	Output is correct
15	Correct	3 ms	2636 KB	Output is correct
16	Correct	2 ms	2508 KB	Output is correct
17	Correct	4 ms	3148 KB	Output is correct
18	Correct	2 ms	2764 KB	Output is correct
19	Correct	3 ms	2656 KB	Output is correct
20	Correct	21 ms	2580 KB	Output is correct
21	Correct	2 ms	2508 KB	Output is correct
22	Correct	2 ms	2636 KB	Output is correct
23	Correct	4 ms	2764 KB	Output is correct
24	Correct	4 ms	3020 KB	Output is correct
25	Correct	3 ms	2764 KB	Output is correct
26	Correct	27 ms	2808 KB	Output is correct
27	Correct	24 ms	2764 KB	Output is correct
28	Correct	7 ms	3532 KB	Output is correct
29	Correct	24 ms	5248 KB	Output is correct
30	Correct	5 ms	3236 KB	Output is correct
31	Correct	11 ms	3916 KB	Output is correct
32	Correct	10 ms	3532 KB	Output is correct
33	Correct	57 ms	8108 KB	Output is correct
34	Correct	42 ms	8012 KB	Output is correct
35	Correct	33 ms	7596 KB	Output is correct
36	Correct	5 ms	3276 KB	Output is correct
37	Correct	87 ms	10948 KB	Output is correct
38	Correct	66 ms	10252 KB	Output is correct
39	Correct	76 ms	10112 KB	Output is correct
40	Correct	51 ms	10216 KB	Output is correct
41	Correct	67 ms	10312 KB	Output is correct
42	Correct	406 ms	3016 KB	Output is correct
43	Correct	431 ms	2904 KB	Output is correct
44	Correct	230 ms	2740 KB	Output is correct
45	Correct	543 ms	25672 KB	Output is correct
46	Correct	448 ms	25668 KB	Output is correct
47	Correct	440 ms	37448 KB	Output is correct
48	Correct	61 ms	13844 KB	Output is correct
49	Correct	49 ms	9748 KB	Output is correct
50	Correct	27 ms	9632 KB	Output is correct
51	Correct	116 ms	18080 KB	Output is correct
52	Correct	166 ms	19436 KB	Output is correct
53	Correct	25 ms	7308 KB	Output is correct
54	Correct	4 ms	3916 KB	Output is correct
55	Correct	5 ms	5068 KB	Output is correct
56	Execution timed out	1089 ms	4220 KB	Time limit exceeded
57	Halted	0 ms	0 KB	-

Submission #510280

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 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
0 / 43.0