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Submission #109944

# Submission time Handle Problem Language Result Execution time Memory
109944 2019-05-08T12:27:40 Z Saboon Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 814 ms 85040 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

const int maxn = 30000 + 10;
const int inf = 1e9;
const int T = 10;

int b[maxn], p[maxn], dp[maxn * T];
int n, m;
vector<pair<int, int> > g[maxn * T];

inline int id(int v, int x){
	return v * T + x;
}

int dijkstra(int v){
	for (int i = 0; i < n * T; i++)
		dp[i] = inf;
	dp[v] = 0;
	set<pair<int, int> > s;
	for (int i = 0; i < n * T; i++)
		s.insert({dp[i], i});
	while (!s.empty()){
		int v = (*s.begin()).second;
		s.erase(s.begin());
		if (dp[v] == inf)
			return -1;
		if (v == id(b[1], 0))
			return dp[v];
		if (v % T != 0){
			int i = v / T, j = v % T;
			g[id(i, j)].push_back({id(i, 0), 0});
			if (i + j < n)
				g[id(i, j)].push_back({id(i + j, j), 1});
			if (i - j >= 0)
				g[id(i, j)].push_back({id(i - j, j), 1});
		}
		for (auto edge : g[v]){
			int u = edge.first, w = edge.second;
			if (dp[u] > dp[v] + w){
				s.erase({dp[u], u});
				dp[u] = dp[v] + w;
				s.insert({dp[u], u});
			}
		}
		g[v].clear();
	}
}

int main(){
	ios_base::sync_with_stdio(false);
	cin >> n >> m;
	for (int i = 0; i < m; i++){
		cin >> b[i] >> p[i];
		if (p[i] < T)
			g[id(b[i], 0)].push_back({id(b[i], p[i]), 0});
		else{
			for (int u = b[i] + p[i]; u < n; u += p[i])
				g[id(b[i], 0)].push_back({id(u, 0), (u - b[i]) / p[i]});
			for (int u = b[i] - p[i]; u >= 0; u -= p[i])
				g[id(b[i], 0)].push_back({id(u, 0), (b[i] - u) / p[i]});
		}
	}
	cout << dijkstra(id(b[0], 0)) << '\n';
}

Compilation message

skyscraper.cpp: In function 'int dijkstra(int)':
skyscraper.cpp:50:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7424 KB Output is correct
2 Correct 9 ms 7424 KB Output is correct
3 Correct 11 ms 7424 KB Output is correct
4 Correct 9 ms 7424 KB Output is correct
5 Correct 8 ms 7424 KB Output is correct
6 Correct 9 ms 7424 KB Output is correct
7 Correct 8 ms 7396 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 7424 KB Output is correct
2 Correct 10 ms 7424 KB Output is correct
3 Correct 8 ms 7424 KB Output is correct
4 Correct 9 ms 7396 KB Output is correct
5 Correct 9 ms 7424 KB Output is correct
6 Correct 8 ms 7424 KB Output is correct
7 Correct 8 ms 7424 KB Output is correct
8 Correct 8 ms 7424 KB Output is correct
9 Correct 7 ms 7424 KB Output is correct
10 Correct 8 ms 7424 KB Output is correct
11 Correct 9 ms 7552 KB Output is correct
12 Correct 9 ms 7424 KB Output is correct
13 Correct 9 ms 7552 KB Output is correct
14 Correct 11 ms 7524 KB Output is correct
15 Correct 9 ms 7552 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 7424 KB Output is correct
2 Correct 9 ms 7424 KB Output is correct
3 Correct 9 ms 7424 KB Output is correct
4 Correct 11 ms 7424 KB Output is correct
5 Correct 9 ms 7424 KB Output is correct
6 Correct 10 ms 7380 KB Output is correct
7 Correct 10 ms 7424 KB Output is correct
8 Correct 11 ms 7424 KB Output is correct
9 Correct 10 ms 7424 KB Output is correct
10 Correct 8 ms 7424 KB Output is correct
11 Correct 11 ms 7552 KB Output is correct
12 Correct 11 ms 7424 KB Output is correct
13 Correct 11 ms 7552 KB Output is correct
14 Correct 11 ms 7552 KB Output is correct
15 Correct 11 ms 7552 KB Output is correct
16 Correct 9 ms 7580 KB Output is correct
17 Correct 13 ms 7936 KB Output is correct
18 Correct 13 ms 8320 KB Output is correct
19 Correct 13 ms 8448 KB Output is correct
20 Correct 13 ms 8448 KB Output is correct
21 Correct 10 ms 7680 KB Output is correct
22 Correct 14 ms 8272 KB Output is correct
23 Correct 16 ms 8192 KB Output is correct
24 Correct 17 ms 8448 KB Output is correct
25 Correct 14 ms 8448 KB Output is correct
26 Correct 16 ms 8448 KB Output is correct
27 Correct 15 ms 8448 KB Output is correct
28 Correct 19 ms 8576 KB Output is correct
29 Correct 20 ms 8960 KB Output is correct
30 Correct 16 ms 8576 KB Output is correct
31 Correct 17 ms 8704 KB Output is correct
32 Correct 20 ms 8576 KB Output is correct
33 Correct 28 ms 9528 KB Output is correct
34 Correct 23 ms 9472 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7424 KB Output is correct
2 Correct 9 ms 7424 KB Output is correct
3 Correct 10 ms 7424 KB Output is correct
4 Correct 10 ms 7424 KB Output is correct
5 Correct 10 ms 7424 KB Output is correct
6 Correct 9 ms 7424 KB Output is correct
7 Correct 8 ms 7424 KB Output is correct
8 Correct 10 ms 7424 KB Output is correct
9 Correct 9 ms 7424 KB Output is correct
10 Correct 9 ms 7552 KB Output is correct
11 Correct 11 ms 7552 KB Output is correct
12 Correct 9 ms 7424 KB Output is correct
13 Correct 9 ms 7552 KB Output is correct
14 Correct 10 ms 7552 KB Output is correct
15 Correct 9 ms 7552 KB Output is correct
16 Correct 9 ms 7552 KB Output is correct
17 Correct 12 ms 7936 KB Output is correct
18 Correct 15 ms 8320 KB Output is correct
19 Correct 14 ms 8448 KB Output is correct
20 Correct 14 ms 8448 KB Output is correct
21 Correct 12 ms 7552 KB Output is correct
22 Correct 13 ms 8320 KB Output is correct
23 Correct 15 ms 8320 KB Output is correct
24 Correct 18 ms 8448 KB Output is correct
25 Correct 18 ms 8448 KB Output is correct
26 Correct 15 ms 8624 KB Output is correct
27 Correct 14 ms 8448 KB Output is correct
28 Correct 23 ms 8704 KB Output is correct
29 Correct 21 ms 9088 KB Output is correct
30 Correct 16 ms 8576 KB Output is correct
31 Correct 15 ms 8704 KB Output is correct
32 Correct 15 ms 8576 KB Output is correct
33 Correct 24 ms 9472 KB Output is correct
34 Correct 19 ms 9472 KB Output is correct
35 Correct 22 ms 9216 KB Output is correct
36 Correct 13 ms 8064 KB Output is correct
37 Correct 26 ms 10492 KB Output is correct
38 Correct 27 ms 10192 KB Output is correct
39 Correct 22 ms 10240 KB Output is correct
40 Correct 25 ms 10240 KB Output is correct
41 Correct 29 ms 10136 KB Output is correct
42 Correct 22 ms 9084 KB Output is correct
43 Correct 22 ms 8960 KB Output is correct
44 Correct 20 ms 9032 KB Output is correct
45 Correct 35 ms 12920 KB Output is correct
46 Correct 31 ms 12968 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 7424 KB Output is correct
2 Correct 10 ms 7396 KB Output is correct
3 Correct 10 ms 7424 KB Output is correct
4 Correct 9 ms 7424 KB Output is correct
5 Correct 10 ms 7424 KB Output is correct
6 Correct 8 ms 7424 KB Output is correct
7 Correct 9 ms 7424 KB Output is correct
8 Correct 8 ms 7424 KB Output is correct
9 Correct 9 ms 7424 KB Output is correct
10 Correct 9 ms 7424 KB Output is correct
11 Correct 10 ms 7552 KB Output is correct
12 Correct 12 ms 7424 KB Output is correct
13 Correct 11 ms 7552 KB Output is correct
14 Correct 12 ms 7524 KB Output is correct
15 Correct 10 ms 7552 KB Output is correct
16 Correct 10 ms 7552 KB Output is correct
17 Correct 11 ms 7936 KB Output is correct
18 Correct 13 ms 8320 KB Output is correct
19 Correct 14 ms 8448 KB Output is correct
20 Correct 21 ms 8576 KB Output is correct
21 Correct 11 ms 7680 KB Output is correct
22 Correct 15 ms 8320 KB Output is correct
23 Correct 13 ms 8320 KB Output is correct
24 Correct 16 ms 8448 KB Output is correct
25 Correct 13 ms 8448 KB Output is correct
26 Correct 16 ms 8576 KB Output is correct
27 Correct 17 ms 8448 KB Output is correct
28 Correct 20 ms 8576 KB Output is correct
29 Correct 18 ms 8960 KB Output is correct
30 Correct 15 ms 8616 KB Output is correct
31 Correct 20 ms 8704 KB Output is correct
32 Correct 16 ms 8576 KB Output is correct
33 Correct 28 ms 9396 KB Output is correct
34 Correct 21 ms 9472 KB Output is correct
35 Correct 25 ms 9216 KB Output is correct
36 Correct 14 ms 8064 KB Output is correct
37 Correct 39 ms 10500 KB Output is correct
38 Correct 31 ms 10360 KB Output is correct
39 Correct 29 ms 10232 KB Output is correct
40 Correct 88 ms 10104 KB Output is correct
41 Correct 31 ms 10104 KB Output is correct
42 Correct 23 ms 8956 KB Output is correct
43 Correct 26 ms 8936 KB Output is correct
44 Correct 27 ms 8988 KB Output is correct
45 Correct 45 ms 12920 KB Output is correct
46 Correct 35 ms 12920 KB Output is correct
47 Correct 128 ms 21468 KB Output is correct
48 Correct 93 ms 21248 KB Output is correct
49 Correct 117 ms 21892 KB Output is correct
50 Correct 105 ms 22936 KB Output is correct
51 Correct 230 ms 25408 KB Output is correct
52 Correct 213 ms 25592 KB Output is correct
53 Correct 103 ms 23056 KB Output is correct
54 Correct 115 ms 22680 KB Output is correct
55 Correct 129 ms 22748 KB Output is correct
56 Correct 163 ms 23872 KB Output is correct
57 Correct 214 ms 48016 KB Output is correct
58 Correct 164 ms 23284 KB Output is correct
59 Correct 176 ms 23676 KB Output is correct
60 Correct 172 ms 24320 KB Output is correct
61 Correct 166 ms 23540 KB Output is correct
62 Correct 221 ms 26872 KB Output is correct
63 Correct 357 ms 44536 KB Output is correct
64 Correct 395 ms 49920 KB Output is correct
65 Correct 552 ms 58320 KB Output is correct
66 Correct 814 ms 84272 KB Output is correct
67 Correct 585 ms 85040 KB Output is correct