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Submission #281694

# Submission time Handle Problem Language Result Execution time Memory
281694 2020-08-23T10:01:37 Z two_sides Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 228 ms 8496 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 3e4 + 5;
const int K = 205;

struct item {
    int v, p, w;

    item(int v, int p, int w):
    v(v), p(p), w(w) {}
};

int dis[N]; bool vs[N][K];
vector <int> adj[N];
queue <item> q;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(nullptr);
    int s, t, n, m;
    cin >> n >> m;
    for (int i = 0; i < m; i++) {
        int v, p; cin >> v >> p;
        adj[v].push_back(p);
        if (!i) s = v;
        if (i == 1) t = v;
    }
    memset(dis, -1, sizeof dis);
    q.emplace(s, 0, 0);
    while (!q.empty()) {
        item h = q.front(); q.pop();
        if (h.v < 0 || h.v >= n) continue;
        if (abs(h.p) < K) {
            if (vs[h.v][abs(h.p)]) continue;
            vs[h.v][abs(h.p)] = 1;
        }
        if (dis[h.v] == -1) {
            dis[h.v] = h.w;
            for (int p : adj[h.v]) {
                q.emplace(h.v + p, p, h.w + 1);
                q.emplace(h.v - p, -p, h.w + 1);
            }
        }
        q.emplace(h.v + h.p, h.p, h.w + 1);
    }
    cout << dis[t] << '\n';
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:11:20: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
   11 |     v(v), p(p), w(w) {}
      |                    ^
skyscraper.cpp:21:9: note: 's' was declared here
   21 |     int s, t, n, m;
      |         ^
skyscraper.cpp:47:23: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
   47 |     cout << dis[t] << '\n';
      |                       ^~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1152 KB Output is correct
5 Correct 1 ms 1152 KB Output is correct
6 Correct 1 ms 1152 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1152 KB Output is correct
5 Correct 1 ms 1152 KB Output is correct
6 Correct 1 ms 1152 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct
8 Correct 1 ms 1152 KB Output is correct
9 Correct 1 ms 1152 KB Output is correct
10 Correct 1 ms 1152 KB Output is correct
11 Correct 1 ms 1280 KB Output is correct
12 Correct 1 ms 1280 KB Output is correct
13 Correct 1 ms 1280 KB Output is correct
14 Correct 2 ms 1280 KB Output is correct
15 Correct 2 ms 1280 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1152 KB Output is correct
5 Correct 1 ms 1152 KB Output is correct
6 Correct 1 ms 1152 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct
8 Correct 1 ms 1152 KB Output is correct
9 Correct 1 ms 1152 KB Output is correct
10 Correct 1 ms 1152 KB Output is correct
11 Correct 1 ms 1280 KB Output is correct
12 Correct 1 ms 1280 KB Output is correct
13 Correct 1 ms 1280 KB Output is correct
14 Correct 1 ms 1280 KB Output is correct
15 Correct 1 ms 1280 KB Output is correct
16 Correct 1 ms 1152 KB Output is correct
17 Correct 2 ms 1408 KB Output is correct
18 Correct 2 ms 1152 KB Output is correct
19 Correct 1 ms 1280 KB Output is correct
20 Correct 2 ms 1664 KB Output is correct
21 Correct 1 ms 1152 KB Output is correct
22 Correct 1 ms 1152 KB Output is correct
23 Correct 2 ms 1536 KB Output is correct
24 Correct 2 ms 1664 KB Output is correct
25 Correct 2 ms 1664 KB Output is correct
26 Correct 2 ms 1664 KB Output is correct
27 Correct 3 ms 1664 KB Output is correct
28 Correct 2 ms 1664 KB Output is correct
29 Correct 3 ms 1536 KB Output is correct
30 Correct 2 ms 1536 KB Output is correct
31 Correct 2 ms 1536 KB Output is correct
32 Correct 2 ms 1536 KB Output is correct
33 Correct 4 ms 1664 KB Output is correct
34 Correct 4 ms 1664 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1184 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1152 KB Output is correct
5 Correct 1 ms 1152 KB Output is correct
6 Correct 1 ms 1152 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct
8 Correct 1 ms 1152 KB Output is correct
9 Correct 1 ms 1152 KB Output is correct
10 Correct 1 ms 1152 KB Output is correct
11 Correct 2 ms 1280 KB Output is correct
12 Correct 1 ms 1280 KB Output is correct
13 Correct 1 ms 1280 KB Output is correct
14 Correct 1 ms 1280 KB Output is correct
15 Correct 2 ms 1280 KB Output is correct
16 Correct 1 ms 1280 KB Output is correct
17 Correct 2 ms 1408 KB Output is correct
18 Correct 1 ms 1152 KB Output is correct
19 Correct 1 ms 1152 KB Output is correct
20 Correct 2 ms 1664 KB Output is correct
21 Correct 2 ms 1152 KB Output is correct
22 Correct 1 ms 1152 KB Output is correct
23 Correct 2 ms 1568 KB Output is correct
24 Correct 2 ms 1664 KB Output is correct
25 Correct 2 ms 1664 KB Output is correct
26 Correct 2 ms 1664 KB Output is correct
27 Correct 2 ms 1664 KB Output is correct
28 Correct 3 ms 1664 KB Output is correct
29 Correct 3 ms 1536 KB Output is correct
30 Correct 2 ms 1536 KB Output is correct
31 Correct 2 ms 1536 KB Output is correct
32 Correct 2 ms 1536 KB Output is correct
33 Correct 4 ms 1664 KB Output is correct
34 Correct 4 ms 1664 KB Output is correct
35 Correct 11 ms 2432 KB Output is correct
36 Correct 3 ms 1536 KB Output is correct
37 Correct 10 ms 2304 KB Output is correct
38 Correct 12 ms 2688 KB Output is correct
39 Correct 12 ms 2688 KB Output is correct
40 Correct 12 ms 2688 KB Output is correct
41 Correct 12 ms 2688 KB Output is correct
42 Correct 7 ms 2560 KB Output is correct
43 Correct 7 ms 2560 KB Output is correct
44 Correct 7 ms 2688 KB Output is correct
45 Correct 18 ms 2660 KB Output is correct
46 Correct 16 ms 2628 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1104 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1152 KB Output is correct
5 Correct 1 ms 1152 KB Output is correct
6 Correct 1 ms 1152 KB Output is correct
7 Correct 1 ms 1152 KB Output is correct
8 Correct 1 ms 1152 KB Output is correct
9 Correct 1 ms 1152 KB Output is correct
10 Correct 1 ms 1152 KB Output is correct
11 Correct 2 ms 1280 KB Output is correct
12 Correct 2 ms 1280 KB Output is correct
13 Correct 1 ms 1280 KB Output is correct
14 Correct 1 ms 1280 KB Output is correct
15 Correct 1 ms 1280 KB Output is correct
16 Correct 1 ms 1152 KB Output is correct
17 Correct 2 ms 1408 KB Output is correct
18 Correct 1 ms 1152 KB Output is correct
19 Correct 1 ms 1152 KB Output is correct
20 Correct 2 ms 1664 KB Output is correct
21 Correct 1 ms 1152 KB Output is correct
22 Correct 1 ms 1152 KB Output is correct
23 Correct 2 ms 1536 KB Output is correct
24 Correct 2 ms 1664 KB Output is correct
25 Correct 2 ms 1664 KB Output is correct
26 Correct 2 ms 1664 KB Output is correct
27 Correct 2 ms 1664 KB Output is correct
28 Correct 2 ms 1664 KB Output is correct
29 Correct 3 ms 1536 KB Output is correct
30 Correct 2 ms 1536 KB Output is correct
31 Correct 2 ms 1536 KB Output is correct
32 Correct 2 ms 1536 KB Output is correct
33 Correct 4 ms 1664 KB Output is correct
34 Correct 4 ms 1664 KB Output is correct
35 Correct 9 ms 2432 KB Output is correct
36 Correct 3 ms 1536 KB Output is correct
37 Correct 10 ms 2348 KB Output is correct
38 Correct 12 ms 2680 KB Output is correct
39 Correct 12 ms 2688 KB Output is correct
40 Correct 12 ms 2688 KB Output is correct
41 Correct 16 ms 2688 KB Output is correct
42 Correct 9 ms 2560 KB Output is correct
43 Correct 7 ms 2560 KB Output is correct
44 Correct 10 ms 2688 KB Output is correct
45 Correct 16 ms 2552 KB Output is correct
46 Correct 18 ms 2628 KB Output is correct
47 Correct 43 ms 4736 KB Output is correct
48 Correct 9 ms 1920 KB Output is correct
49 Correct 7 ms 1792 KB Output is correct
50 Correct 5 ms 1664 KB Output is correct
51 Correct 27 ms 8284 KB Output is correct
52 Correct 28 ms 8320 KB Output is correct
53 Correct 23 ms 8064 KB Output is correct
54 Correct 6 ms 7224 KB Output is correct
55 Correct 6 ms 7168 KB Output is correct
56 Correct 16 ms 8320 KB Output is correct
57 Correct 25 ms 7296 KB Output is correct
58 Correct 14 ms 8192 KB Output is correct
59 Correct 16 ms 8320 KB Output is correct
60 Correct 17 ms 8192 KB Output is correct
61 Correct 17 ms 8260 KB Output is correct
62 Correct 35 ms 8496 KB Output is correct
63 Correct 48 ms 7800 KB Output is correct
64 Correct 55 ms 7800 KB Output is correct
65 Correct 132 ms 7928 KB Output is correct
66 Correct 201 ms 8300 KB Output is correct
67 Correct 228 ms 8204 KB Output is correct