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Submission #99463

# Submission time Handle Problem Language Result Execution time Memory
99463 2019-03-04T08:11:27 Z Shafin666 Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 379 ms 68744 KB 
#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define pii pair<int, int>
typedef long long ll;
typedef long double ld;
using namespace std;

vector<int> adj[30005], cost[30005];
set<int> s[30005]; 
int b[30005], dist[30005];

int main() 
{
	int n, m;
	int i, j, k;
	int x, y;

	cin >> n >> m;
	for(int i = 0; i < m; i++) {
		cin >> x >> y; b[i] = x;
		s[x].insert(y);
	}

	for(int pos = 0; pos < n; pos++) {
		dist[pos] = 1e9+7;
		
		for(int p : s[pos]) {
			for(int i = 1; ; i++) {
				if(pos + i*p < n) {
					adj[pos].pb(pos + i*p);
					cost[pos].pb(i);

					if(s[pos + i*p].find(p) != s[pos + i*p].end()) break;
				} else break;
			}
			for(int i = 1; ; i++) {
				if(pos - i*p >= 0) {
					adj[pos].pb(pos - i*p);
					cost[pos].pb(i);

					if(s[pos - i*p].find(p) != s[pos - i*p].end()) break;
				} else break;
			}
		}
	}

	priority_queue<pii, vector<pii>, greater<pii>> pq;
	dist[b[0]] = 0; pq.push({dist[b[0]], b[0]});

	while(!pq.empty()) {
		pii p = pq.top();
		pq.pop();

		int u = p.second; int w = p.first;
		for(int i = 0; i < (int) adj[u].size(); i++) {
			int c = cost[u][i];
			int v = adj[u][i];

			if(dist[v] > w+c) {
				dist[v] = w+c;
				pq.push({dist[v], v});
			}
		}
	}
	if(dist[b[1]] >= 1e8) cout << -1 << endl;
	else cout << dist[b[1]] << endl; 

	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:16:6: warning: unused variable 'i' [-Wunused-variable]
  int i, j, k;
      ^
skyscraper.cpp:16:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j, k;
         ^
skyscraper.cpp:16:12: warning: unused variable 'k' [-Wunused-variable]
  int i, j, k;
            ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3200 KB Output is correct
2 Correct 5 ms 3200 KB Output is correct
3 Correct 5 ms 3200 KB Output is correct
4 Correct 4 ms 3072 KB Output is correct
5 Correct 4 ms 3072 KB Output is correct
6 Correct 5 ms 3200 KB Output is correct
7 Correct 2 ms 3200 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3200 KB Output is correct
2 Correct 4 ms 3200 KB Output is correct
3 Correct 5 ms 3072 KB Output is correct
4 Correct 4 ms 3200 KB Output is correct
5 Correct 5 ms 3200 KB Output is correct
6 Correct 5 ms 3200 KB Output is correct
7 Correct 5 ms 3072 KB Output is correct
8 Correct 5 ms 3200 KB Output is correct
9 Correct 6 ms 3200 KB Output is correct
10 Correct 5 ms 3200 KB Output is correct
11 Correct 9 ms 3328 KB Output is correct
12 Correct 6 ms 3200 KB Output is correct
13 Correct 6 ms 3200 KB Output is correct
14 Correct 6 ms 3328 KB Output is correct
15 Correct 8 ms 3328 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3072 KB Output is correct
2 Correct 3 ms 3072 KB Output is correct
3 Correct 5 ms 3072 KB Output is correct
4 Correct 5 ms 3072 KB Output is correct
5 Correct 5 ms 3200 KB Output is correct
6 Correct 4 ms 3200 KB Output is correct
7 Correct 4 ms 3200 KB Output is correct
8 Correct 4 ms 3072 KB Output is correct
9 Correct 5 ms 3200 KB Output is correct
10 Correct 6 ms 3200 KB Output is correct
11 Correct 8 ms 3328 KB Output is correct
12 Correct 5 ms 3200 KB Output is correct
13 Correct 6 ms 3200 KB Output is correct
14 Correct 6 ms 3328 KB Output is correct
15 Correct 6 ms 3328 KB Output is correct
16 Correct 5 ms 3200 KB Output is correct
17 Correct 7 ms 3456 KB Output is correct
18 Correct 6 ms 3328 KB Output is correct
19 Correct 6 ms 3200 KB Output is correct
20 Correct 8 ms 3456 KB Output is correct
21 Correct 7 ms 3200 KB Output is correct
22 Correct 5 ms 3200 KB Output is correct
23 Correct 6 ms 3328 KB Output is correct
24 Correct 8 ms 3456 KB Output is correct
25 Correct 8 ms 3456 KB Output is correct
26 Correct 6 ms 3328 KB Output is correct
27 Correct 6 ms 3328 KB Output is correct
28 Correct 9 ms 3456 KB Output is correct
29 Correct 10 ms 4096 KB Output is correct
30 Correct 3 ms 3456 KB Output is correct
31 Correct 7 ms 3584 KB Output is correct
32 Correct 6 ms 3456 KB Output is correct
33 Correct 12 ms 4864 KB Output is correct
34 Correct 12 ms 4864 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3200 KB Output is correct
2 Correct 4 ms 3072 KB Output is correct
3 Correct 4 ms 3200 KB Output is correct
4 Correct 4 ms 3072 KB Output is correct
5 Correct 4 ms 3072 KB Output is correct
6 Correct 6 ms 3072 KB Output is correct
7 Correct 5 ms 3200 KB Output is correct
8 Correct 4 ms 3072 KB Output is correct
9 Correct 5 ms 3200 KB Output is correct
10 Correct 5 ms 3200 KB Output is correct
11 Correct 7 ms 3328 KB Output is correct
12 Correct 6 ms 3200 KB Output is correct
13 Correct 6 ms 3200 KB Output is correct
14 Correct 6 ms 3328 KB Output is correct
15 Correct 6 ms 3328 KB Output is correct
16 Correct 7 ms 3200 KB Output is correct
17 Correct 10 ms 3456 KB Output is correct
18 Correct 6 ms 3328 KB Output is correct
19 Correct 6 ms 3200 KB Output is correct
20 Correct 7 ms 3456 KB Output is correct
21 Correct 7 ms 3328 KB Output is correct
22 Correct 6 ms 3328 KB Output is correct
23 Correct 8 ms 3328 KB Output is correct
24 Correct 9 ms 3456 KB Output is correct
25 Correct 8 ms 3448 KB Output is correct
26 Correct 7 ms 3328 KB Output is correct
27 Correct 8 ms 3328 KB Output is correct
28 Correct 7 ms 3456 KB Output is correct
29 Correct 9 ms 4096 KB Output is correct
30 Correct 7 ms 3456 KB Output is correct
31 Correct 8 ms 3712 KB Output is correct
32 Correct 6 ms 3556 KB Output is correct
33 Correct 11 ms 4864 KB Output is correct
34 Correct 11 ms 4864 KB Output is correct
35 Correct 40 ms 5692 KB Output is correct
36 Correct 10 ms 3584 KB Output is correct
37 Correct 41 ms 6392 KB Output is correct
38 Correct 57 ms 6776 KB Output is correct
39 Correct 54 ms 6776 KB Output is correct
40 Correct 72 ms 6776 KB Output is correct
41 Correct 68 ms 6776 KB Output is correct
42 Correct 19 ms 3584 KB Output is correct
43 Correct 23 ms 3584 KB Output is correct
44 Correct 25 ms 3704 KB Output is correct
45 Correct 57 ms 9720 KB Output is correct
46 Correct 77 ms 9724 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3200 KB Output is correct
2 Correct 5 ms 3200 KB Output is correct
3 Correct 5 ms 3072 KB Output is correct
4 Correct 5 ms 3200 KB Output is correct
5 Correct 5 ms 3200 KB Output is correct
6 Correct 4 ms 3200 KB Output is correct
7 Correct 5 ms 3200 KB Output is correct
8 Correct 5 ms 3328 KB Output is correct
9 Correct 5 ms 3200 KB Output is correct
10 Correct 6 ms 3200 KB Output is correct
11 Correct 6 ms 3328 KB Output is correct
12 Correct 5 ms 3072 KB Output is correct
13 Correct 6 ms 3200 KB Output is correct
14 Correct 6 ms 3328 KB Output is correct
15 Correct 6 ms 3328 KB Output is correct
16 Correct 5 ms 3200 KB Output is correct
17 Correct 7 ms 3456 KB Output is correct
18 Correct 7 ms 3328 KB Output is correct
19 Correct 5 ms 3200 KB Output is correct
20 Correct 7 ms 3328 KB Output is correct
21 Correct 5 ms 3200 KB Output is correct
22 Correct 5 ms 3200 KB Output is correct
23 Correct 8 ms 3328 KB Output is correct
24 Correct 10 ms 3456 KB Output is correct
25 Correct 8 ms 3456 KB Output is correct
26 Correct 7 ms 3328 KB Output is correct
27 Correct 7 ms 3200 KB Output is correct
28 Correct 8 ms 3584 KB Output is correct
29 Correct 9 ms 4096 KB Output is correct
30 Correct 6 ms 3456 KB Output is correct
31 Correct 6 ms 3712 KB Output is correct
32 Correct 6 ms 3584 KB Output is correct
33 Correct 12 ms 4864 KB Output is correct
34 Correct 14 ms 4864 KB Output is correct
35 Correct 42 ms 5756 KB Output is correct
36 Correct 11 ms 3584 KB Output is correct
37 Correct 37 ms 6424 KB Output is correct
38 Correct 48 ms 6732 KB Output is correct
39 Correct 49 ms 6748 KB Output is correct
40 Correct 52 ms 6776 KB Output is correct
41 Correct 49 ms 6648 KB Output is correct
42 Correct 33 ms 3576 KB Output is correct
43 Correct 26 ms 3580 KB Output is correct
44 Correct 30 ms 3704 KB Output is correct
45 Correct 66 ms 9728 KB Output is correct
46 Correct 74 ms 9740 KB Output is correct
47 Correct 90 ms 14196 KB Output is correct
48 Correct 42 ms 7416 KB Output is correct
49 Correct 49 ms 6264 KB Output is correct
50 Correct 37 ms 5888 KB Output is correct
51 Correct 88 ms 9472 KB Output is correct
52 Correct 89 ms 9992 KB Output is correct
53 Correct 48 ms 6772 KB Output is correct
54 Correct 8 ms 3712 KB Output is correct
55 Correct 8 ms 4352 KB Output is correct
56 Correct 53 ms 6904 KB Output is correct
57 Correct 60 ms 12408 KB Output is correct
58 Correct 19 ms 4600 KB Output is correct
59 Correct 25 ms 5084 KB Output is correct
60 Correct 31 ms 5752 KB Output is correct
61 Correct 44 ms 5112 KB Output is correct
62 Correct 63 ms 10744 KB Output is correct
63 Correct 117 ms 28780 KB Output is correct
64 Correct 132 ms 31856 KB Output is correct
65 Correct 184 ms 41504 KB Output is correct
66 Correct 379 ms 68744 KB Output is correct
67 Correct 360 ms 68612 KB Output is correct