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Submission #375356

# Submission time Handle Problem Language Result Execution time Memory
375356 2021-03-09T09:55:00 Z wind_reaper Jakarta Skyscrapers (APIO15_skyscraper) C++17
36 / 100
 1000 ms 188524 KB 
#include <bits/stdc++.h>

using namespace std;

const int INF = 1e9;

int32_t main(){
	ios_base::sync_with_stdio(false); 
	cin.tie(NULL); 
	
	int n, m;
	cin >> n >> m;

	// vector<vector<array<int, 2>>> adj(n);
	vector<set<array<int, 2>>> adj(n);
	int src, dest;
	for(int i = 0; i < m; i++){
		int b, p;
		cin >> b >> p;
		if(i == 0) src = b;
		if(i == 1) dest = b;
		for(int j = b+p; j < n; j += p)
			adj[b].insert({j, (j-b)/p});
		for(int j = b-p; j >= 0; j -= p)
			adj[b].insert({j, (b-j)/p});
	}	
 
	vector<int> dist(n, INF);
	dist[src] = 0;
	priority_queue<array<int, 2>, vector<array<int, 2>>, greater<array<int, 2>>> pq;
	pq.push({0, src});
 
	while(!pq.empty()){
		auto [d, node] = pq.top();
		pq.pop();
		for(auto& [v, nd] : adj[node]){
			if(dist[v] <= dist[node] + nd)
				continue;
			dist[v] = dist[node] + nd;
			pq.push({dist[v], v});
		}
	}
	cout << (dist[dest] == INF ? -1 : dist[dest]) << '\n';
	return 0; 
}

Compilation message

skyscraper.cpp: In function 'int32_t main()':
skyscraper.cpp:43:20: warning: 'dest' may be used uninitialized in this function [-Wmaybe-uninitialized]
   43 |  cout << (dist[dest] == INF ? -1 : dist[dest]) << '\n';
      |                    ^
skyscraper.cpp:29:10: warning: 'src' may be used uninitialized in this function [-Wmaybe-uninitialized]
   29 |  dist[src] = 0;
      |          ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 3 ms 748 KB Output is correct
12 Correct 11 ms 364 KB Output is correct
13 Correct 11 ms 876 KB Output is correct
14 Correct 2 ms 492 KB Output is correct
15 Correct 2 ms 492 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 2 ms 748 KB Output is correct
12 Correct 10 ms 364 KB Output is correct
13 Correct 11 ms 876 KB Output is correct
14 Correct 2 ms 492 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 5 ms 1388 KB Output is correct
18 Correct 2 ms 748 KB Output is correct
19 Correct 1 ms 620 KB Output is correct
20 Correct 772 ms 188524 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 620 KB Output is correct
23 Correct 2 ms 748 KB Output is correct
24 Correct 4 ms 1004 KB Output is correct
25 Correct 3 ms 876 KB Output is correct
26 Correct 284 ms 1004 KB Output is correct
27 Correct 269 ms 748 KB Output is correct
28 Correct 4 ms 1388 KB Output is correct
29 Correct 20 ms 3436 KB Output is correct
30 Correct 5 ms 1388 KB Output is correct
31 Correct 9 ms 2156 KB Output is correct
32 Correct 6 ms 1772 KB Output is correct
33 Correct 36 ms 6252 KB Output is correct
34 Correct 36 ms 6252 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 3 ms 748 KB Output is correct
12 Correct 11 ms 372 KB Output is correct
13 Correct 12 ms 876 KB Output is correct
14 Correct 2 ms 492 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 5 ms 1388 KB Output is correct
18 Correct 2 ms 748 KB Output is correct
19 Correct 2 ms 620 KB Output is correct
20 Correct 773 ms 188524 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 2 ms 620 KB Output is correct
23 Correct 2 ms 748 KB Output is correct
24 Correct 3 ms 1004 KB Output is correct
25 Correct 3 ms 876 KB Output is correct
26 Correct 276 ms 1048 KB Output is correct
27 Correct 277 ms 748 KB Output is correct
28 Correct 4 ms 1388 KB Output is correct
29 Correct 16 ms 3456 KB Output is correct
30 Correct 5 ms 1388 KB Output is correct
31 Correct 9 ms 2156 KB Output is correct
32 Correct 6 ms 1772 KB Output is correct
33 Correct 36 ms 6252 KB Output is correct
34 Correct 37 ms 6380 KB Output is correct
35 Correct 39 ms 6764 KB Output is correct
36 Correct 5 ms 1260 KB Output is correct
37 Correct 87 ms 13804 KB Output is correct
38 Correct 67 ms 10732 KB Output is correct
39 Correct 77 ms 11756 KB Output is correct
40 Correct 75 ms 11116 KB Output is correct
41 Correct 69 ms 10604 KB Output is correct
42 Execution timed out 1083 ms 1260 KB Time limit exceeded
43 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 2 ms 748 KB Output is correct
12 Correct 10 ms 364 KB Output is correct
13 Correct 11 ms 876 KB Output is correct
14 Correct 2 ms 492 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 6 ms 1388 KB Output is correct
18 Correct 2 ms 748 KB Output is correct
19 Correct 1 ms 620 KB Output is correct
20 Correct 772 ms 188268 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 2 ms 620 KB Output is correct
23 Correct 2 ms 748 KB Output is correct
24 Correct 3 ms 1004 KB Output is correct
25 Correct 3 ms 876 KB Output is correct
26 Correct 283 ms 1004 KB Output is correct
27 Correct 270 ms 876 KB Output is correct
28 Correct 5 ms 1388 KB Output is correct
29 Correct 17 ms 3436 KB Output is correct
30 Correct 5 ms 1388 KB Output is correct
31 Correct 9 ms 2156 KB Output is correct
32 Correct 6 ms 1772 KB Output is correct
33 Correct 48 ms 6252 KB Output is correct
34 Correct 39 ms 6252 KB Output is correct
35 Correct 39 ms 6764 KB Output is correct
36 Correct 4 ms 1260 KB Output is correct
37 Correct 87 ms 13804 KB Output is correct
38 Correct 68 ms 10732 KB Output is correct
39 Correct 72 ms 11756 KB Output is correct
40 Correct 68 ms 11116 KB Output is correct
41 Correct 69 ms 10732 KB Output is correct
42 Execution timed out 1086 ms 1260 KB Time limit exceeded
43 Halted 0 ms 0 KB -