Submission #222268

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
222268	2020-04-12T20:48:02 Z	MODDI	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	119 ms	5744 KB

skyscraper

#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define vi vector<int>
#define vl vector<ll>
#define vii vector<pii>
#define vll vector<pll>
#define IOS ios_base::sync_with_stdio(false)
using namespace std;
const int nmax=3e4+42;
priority_queue<pair<int,int> > pq;
set<int> jumps[nmax];
int wanted;
int dist[nmax];
bool in(int kade, int val){
	return jumps[kade].count(val);
}
int main()
{
	int n, m;
	cin>>n>>m;
	for(int i = 0; i < n; i++){
		dist[i] = 1e9;
	}
	for(int i = 0; i < m; i++){
		int b, p;
		cin>>b>>p;
		if(i == 0)
			dist[b] = 0, pq.push({0, b});
		if(i == 1)
			wanted = b;
			
		jumps[b].insert(p);
	}
	bool vis[n];
	memset(vis,false,sizeof(vis));
	while(!pq.empty()){
		pair<int,int> state = pq.top();
		pq.pop();
		if(vis[state.second] == false){
			vis[state.second] = true;
			int path = -state.first;
			if(state.second == wanted)
			{
				cout<<path<<endl;
				return 0;
			}
			
			for(auto jump : jumps[state.second]){
				for(int i = state.second + jump; i < n; i+=jump)
				{
					int dist_now = path + (i - state.second) / jump;
					if(dist[i] > dist_now){
						dist[i] = dist_now;
						pq.push({-dist_now,i});
					}
					if(in(i, jump))
						break;
				}
				for(int i = state.second - jump; i >= 0; i-=jump){
					int dist_now = path + (state.second -i) / jump;
					if(dist[i] > dist_now){
						dist[i] = dist_now;
						pq.push({-dist_now,i});
					}
					if(in(i, jump))
						break;
				}
			}
			
		}
	}
	cout<<-1<<endl;
	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	1664 KB	Output is correct
2	Correct	5 ms	1792 KB	Output is correct
3	Correct	5 ms	1792 KB	Output is correct
4	Correct	6 ms	1664 KB	Output is correct
5	Correct	5 ms	1664 KB	Output is correct
6	Correct	5 ms	1664 KB	Output is correct
7	Correct	5 ms	1792 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	1664 KB	Output is correct
2	Correct	5 ms	1664 KB	Output is correct
3	Correct	5 ms	1664 KB	Output is correct
4	Correct	5 ms	1664 KB	Output is correct
5	Correct	5 ms	1664 KB	Output is correct
6	Correct	5 ms	1664 KB	Output is correct
7	Correct	5 ms	1664 KB	Output is correct
8	Correct	5 ms	1792 KB	Output is correct
9	Correct	5 ms	1792 KB	Output is correct
10	Correct	6 ms	1792 KB	Output is correct
11	Correct	6 ms	1792 KB	Output is correct
12	Correct	6 ms	1792 KB	Output is correct
13	Correct	6 ms	1792 KB	Output is correct
14	Correct	7 ms	1664 KB	Output is correct
15	Correct	7 ms	1792 KB	Output is correct

Subtask #3
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	1792 KB	Output is correct
2	Correct	5 ms	1664 KB	Output is correct
3	Correct	5 ms	1792 KB	Output is correct
4	Correct	5 ms	1664 KB	Output is correct
5	Correct	5 ms	1664 KB	Output is correct
6	Correct	5 ms	1664 KB	Output is correct
7	Correct	5 ms	1792 KB	Output is correct
8	Correct	5 ms	1664 KB	Output is correct
9	Correct	5 ms	1792 KB	Output is correct
10	Correct	6 ms	1792 KB	Output is correct
11	Correct	6 ms	1792 KB	Output is correct
12	Correct	6 ms	1792 KB	Output is correct
13	Correct	6 ms	1792 KB	Output is correct
14	Correct	7 ms	1792 KB	Output is correct
15	Correct	7 ms	1792 KB	Output is correct
16	Correct	6 ms	1792 KB	Output is correct
17	Correct	7 ms	1792 KB	Output is correct
18	Correct	6 ms	1792 KB	Output is correct
19	Correct	6 ms	1792 KB	Output is correct
20	Correct	7 ms	1920 KB	Output is correct
21	Correct	6 ms	1792 KB	Output is correct
22	Correct	6 ms	1792 KB	Output is correct
23	Correct	6 ms	1792 KB	Output is correct
24	Correct	7 ms	1920 KB	Output is correct
25	Correct	7 ms	1792 KB	Output is correct
26	Correct	6 ms	1792 KB	Output is correct
27	Correct	7 ms	1792 KB	Output is correct
28	Correct	7 ms	1792 KB	Output is correct
29	Correct	7 ms	1920 KB	Output is correct
30	Correct	6 ms	1792 KB	Output is correct
31	Correct	7 ms	1920 KB	Output is correct
32	Correct	6 ms	1920 KB	Output is correct
33	Correct	9 ms	2048 KB	Output is correct
34	Correct	8 ms	2048 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	1664 KB	Output is correct
2	Correct	5 ms	1792 KB	Output is correct
3	Correct	5 ms	1664 KB	Output is correct
4	Correct	6 ms	1664 KB	Output is correct
5	Correct	5 ms	1792 KB	Output is correct
6	Correct	5 ms	1792 KB	Output is correct
7	Correct	5 ms	1664 KB	Output is correct
8	Correct	5 ms	1792 KB	Output is correct
9	Correct	5 ms	1792 KB	Output is correct
10	Correct	6 ms	1792 KB	Output is correct
11	Correct	7 ms	1792 KB	Output is correct
12	Correct	6 ms	1792 KB	Output is correct
13	Correct	6 ms	1792 KB	Output is correct
14	Correct	7 ms	1792 KB	Output is correct
15	Correct	7 ms	1792 KB	Output is correct
16	Correct	6 ms	1792 KB	Output is correct
17	Correct	7 ms	1792 KB	Output is correct
18	Correct	6 ms	1792 KB	Output is correct
19	Correct	6 ms	1792 KB	Output is correct
20	Correct	7 ms	1792 KB	Output is correct
21	Correct	6 ms	1792 KB	Output is correct
22	Correct	6 ms	1792 KB	Output is correct
23	Correct	6 ms	1792 KB	Output is correct
24	Correct	9 ms	1920 KB	Output is correct
25	Correct	7 ms	1920 KB	Output is correct
26	Correct	6 ms	1792 KB	Output is correct
27	Correct	7 ms	1792 KB	Output is correct
28	Correct	7 ms	1792 KB	Output is correct
29	Correct	7 ms	1920 KB	Output is correct
30	Correct	6 ms	1792 KB	Output is correct
31	Correct	6 ms	1920 KB	Output is correct
32	Correct	6 ms	1792 KB	Output is correct
33	Correct	9 ms	2048 KB	Output is correct
34	Correct	8 ms	2048 KB	Output is correct
35	Correct	31 ms	3200 KB	Output is correct
36	Correct	9 ms	2048 KB	Output is correct
37	Correct	27 ms	2944 KB	Output is correct
38	Correct	38 ms	3456 KB	Output is correct
39	Correct	31 ms	3456 KB	Output is correct
40	Correct	32 ms	3456 KB	Output is correct
41	Correct	38 ms	3456 KB	Output is correct
42	Correct	23 ms	1920 KB	Output is correct
43	Correct	23 ms	1920 KB	Output is correct
44	Correct	23 ms	2048 KB	Output is correct
45	Correct	35 ms	3584 KB	Output is correct
46	Correct	34 ms	3584 KB	Output is correct

Subtask #5
43.0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	1664 KB	Output is correct
2	Correct	5 ms	1664 KB	Output is correct
3	Correct	5 ms	1792 KB	Output is correct
4	Correct	5 ms	1664 KB	Output is correct
5	Correct	6 ms	1792 KB	Output is correct
6	Correct	6 ms	1792 KB	Output is correct
7	Correct	5 ms	1664 KB	Output is correct
8	Correct	5 ms	1664 KB	Output is correct
9	Correct	5 ms	1664 KB	Output is correct
10	Correct	6 ms	1792 KB	Output is correct
11	Correct	7 ms	1792 KB	Output is correct
12	Correct	6 ms	1792 KB	Output is correct
13	Correct	6 ms	1792 KB	Output is correct
14	Correct	7 ms	1792 KB	Output is correct
15	Correct	7 ms	1792 KB	Output is correct
16	Correct	6 ms	1792 KB	Output is correct
17	Correct	7 ms	1792 KB	Output is correct
18	Correct	6 ms	1792 KB	Output is correct
19	Correct	6 ms	1792 KB	Output is correct
20	Correct	7 ms	1792 KB	Output is correct
21	Correct	6 ms	1792 KB	Output is correct
22	Correct	6 ms	1792 KB	Output is correct
23	Correct	6 ms	1792 KB	Output is correct
24	Correct	7 ms	1920 KB	Output is correct
25	Correct	7 ms	1920 KB	Output is correct
26	Correct	7 ms	1792 KB	Output is correct
27	Correct	7 ms	1792 KB	Output is correct
28	Correct	7 ms	1920 KB	Output is correct
29	Correct	7 ms	1920 KB	Output is correct
30	Correct	6 ms	1792 KB	Output is correct
31	Correct	6 ms	1920 KB	Output is correct
32	Correct	6 ms	1792 KB	Output is correct
33	Correct	9 ms	2048 KB	Output is correct
34	Correct	8 ms	2048 KB	Output is correct
35	Correct	31 ms	3200 KB	Output is correct
36	Correct	9 ms	2048 KB	Output is correct
37	Correct	23 ms	2944 KB	Output is correct
38	Correct	39 ms	3448 KB	Output is correct
39	Correct	31 ms	3448 KB	Output is correct
40	Correct	32 ms	3448 KB	Output is correct
41	Correct	36 ms	3448 KB	Output is correct
42	Correct	23 ms	1920 KB	Output is correct
43	Correct	24 ms	2048 KB	Output is correct
44	Correct	23 ms	2048 KB	Output is correct
45	Correct	36 ms	3576 KB	Output is correct
46	Correct	36 ms	3576 KB	Output is correct
47	Correct	31 ms	3584 KB	Output is correct
48	Correct	25 ms	3072 KB	Output is correct
49	Correct	26 ms	3072 KB	Output is correct
50	Correct	18 ms	2688 KB	Output is correct
51	Correct	43 ms	4344 KB	Output is correct
52	Correct	47 ms	4352 KB	Output is correct
53	Correct	35 ms	3832 KB	Output is correct
54	Correct	7 ms	2176 KB	Output is correct
55	Correct	7 ms	2176 KB	Output is correct
56	Correct	28 ms	3504 KB	Output is correct
57	Correct	8 ms	2560 KB	Output is correct
58	Correct	20 ms	2176 KB	Output is correct
59	Correct	28 ms	2304 KB	Output is correct
60	Correct	26 ms	2304 KB	Output is correct
61	Correct	28 ms	2560 KB	Output is correct
62	Correct	35 ms	3576 KB	Output is correct
63	Correct	62 ms	4724 KB	Output is correct
64	Correct	62 ms	4732 KB	Output is correct
65	Correct	73 ms	4604 KB	Output is correct
66	Correct	119 ms	5616 KB	Output is correct
67	Correct	100 ms	5744 KB	Output is correct

Submission #222268

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