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Submission #876861

# Submission time Handle Problem Language Result Execution time Memory
876861 2023-11-22T12:44:53 Z Beerus13 Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 106 ms 5456 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int N = 3e4 + 5;
const int sqr = 105;

int n, m, s, t, dp[N];
bool vs[sqr][N];
vector<int> g[N];

struct node {
    int vt, step, cost;
    node(int vt, int step, int cost) : vt(vt), step(step), cost(cost) {}
};

void bfs(int u) {
    memset(dp, -1, sizeof(dp));
    queue<node> q; q.emplace(u, 0, 0);
    while(q.size()) {
        auto [vt, step, cost] = q.front(); q.pop();
        if(vt < 0 || vt >= n) continue;
        int p = abs(step);
        if(p < sqr && vs[p][vt]) continue;
        if(p < sqr) vs[p][vt] = 1;
        q.emplace(vt + step, step, cost + 1);
        if(dp[vt] == -1) {
            dp[vt] = cost;
            for(int power : g[vt]) {
                q.emplace(vt + power, power, cost + 1);
                q.emplace(vt - power, -power, cost + 1);
            }
        }
    }
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin >> n >> m;
    for(int i = 0; i < m; ++i) {
        int vt, step; cin >> vt >> step;
        g[vt].push_back(step);
        if(i == 0) s = vt;
        if(i == 1) t = vt;
    }
    bfs(s); 
    cout << dp[t] << '\n';
    return 0;
}

Compilation message

skyscraper.cpp: In function 'void bfs(int)':
skyscraper.cpp:20:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   20 |         auto [vt, step, cost] = q.front(); q.pop();
      |              ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2656 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2692 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2692 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2692 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2692 KB Output is correct
9 Correct 1 ms 2692 KB Output is correct
10 Correct 1 ms 2908 KB Output is correct
11 Correct 2 ms 2908 KB Output is correct
12 Correct 1 ms 2752 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2700 KB Output is correct
15 Correct 1 ms 2908 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2692 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2696 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2692 KB Output is correct
10 Correct 1 ms 2908 KB Output is correct
11 Correct 2 ms 2908 KB Output is correct
12 Correct 1 ms 2908 KB Output is correct
13 Correct 1 ms 2648 KB Output is correct
14 Correct 1 ms 2908 KB Output is correct
15 Correct 1 ms 2908 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 2 ms 2908 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 1 ms 2648 KB Output is correct
21 Correct 1 ms 2696 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2956 KB Output is correct
24 Correct 2 ms 2908 KB Output is correct
25 Correct 2 ms 2652 KB Output is correct
26 Correct 2 ms 2904 KB Output is correct
27 Correct 1 ms 2908 KB Output is correct
28 Correct 2 ms 2960 KB Output is correct
29 Correct 2 ms 2652 KB Output is correct
30 Correct 1 ms 2652 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 1 ms 2652 KB Output is correct
33 Correct 2 ms 2908 KB Output is correct
34 Correct 2 ms 2908 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2688 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2648 KB Output is correct
10 Correct 1 ms 2904 KB Output is correct
11 Correct 1 ms 2908 KB Output is correct
12 Correct 1 ms 2908 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2908 KB Output is correct
15 Correct 1 ms 2908 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 2960 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 1 ms 2648 KB Output is correct
21 Correct 1 ms 2908 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2956 KB Output is correct
24 Correct 1 ms 2908 KB Output is correct
25 Correct 1 ms 2652 KB Output is correct
26 Correct 1 ms 2908 KB Output is correct
27 Correct 1 ms 2908 KB Output is correct
28 Correct 1 ms 2908 KB Output is correct
29 Correct 1 ms 2652 KB Output is correct
30 Correct 1 ms 2652 KB Output is correct
31 Correct 2 ms 2652 KB Output is correct
32 Correct 1 ms 2652 KB Output is correct
33 Correct 2 ms 2908 KB Output is correct
34 Correct 2 ms 2952 KB Output is correct
35 Correct 6 ms 3932 KB Output is correct
36 Correct 2 ms 3160 KB Output is correct
37 Correct 6 ms 3672 KB Output is correct
38 Correct 11 ms 4184 KB Output is correct
39 Correct 8 ms 4188 KB Output is correct
40 Correct 8 ms 4104 KB Output is correct
41 Correct 8 ms 4188 KB Output is correct
42 Correct 6 ms 3932 KB Output is correct
43 Correct 5 ms 3932 KB Output is correct
44 Correct 5 ms 3932 KB Output is correct
45 Correct 10 ms 4188 KB Output is correct
46 Correct 9 ms 4184 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2660 KB Output is correct
9 Correct 1 ms 2664 KB Output is correct
10 Correct 1 ms 2920 KB Output is correct
11 Correct 1 ms 2916 KB Output is correct
12 Correct 1 ms 2920 KB Output is correct
13 Correct 1 ms 2664 KB Output is correct
14 Correct 1 ms 2920 KB Output is correct
15 Correct 1 ms 2908 KB Output is correct
16 Correct 1 ms 2648 KB Output is correct
17 Correct 1 ms 2904 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 3 ms 2652 KB Output is correct
21 Correct 1 ms 2648 KB Output is correct
22 Correct 1 ms 2652 KB Output is correct
23 Correct 1 ms 2908 KB Output is correct
24 Correct 2 ms 2908 KB Output is correct
25 Correct 1 ms 2652 KB Output is correct
26 Correct 1 ms 2904 KB Output is correct
27 Correct 1 ms 2908 KB Output is correct
28 Correct 2 ms 2908 KB Output is correct
29 Correct 1 ms 2652 KB Output is correct
30 Correct 1 ms 2652 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 1 ms 2652 KB Output is correct
33 Correct 2 ms 2904 KB Output is correct
34 Correct 2 ms 2904 KB Output is correct
35 Correct 6 ms 3864 KB Output is correct
36 Correct 3 ms 3164 KB Output is correct
37 Correct 7 ms 3904 KB Output is correct
38 Correct 8 ms 4188 KB Output is correct
39 Correct 11 ms 4188 KB Output is correct
40 Correct 8 ms 4188 KB Output is correct
41 Correct 8 ms 4188 KB Output is correct
42 Correct 5 ms 3796 KB Output is correct
43 Correct 5 ms 3928 KB Output is correct
44 Correct 6 ms 3732 KB Output is correct
45 Correct 9 ms 4188 KB Output is correct
46 Correct 13 ms 4188 KB Output is correct
47 Correct 13 ms 4700 KB Output is correct
48 Correct 6 ms 3360 KB Output is correct
49 Correct 5 ms 3416 KB Output is correct
50 Correct 3 ms 3184 KB Output is correct
51 Correct 12 ms 4716 KB Output is correct
52 Correct 11 ms 4956 KB Output is correct
53 Correct 8 ms 3676 KB Output is correct
54 Correct 1 ms 2652 KB Output is correct
55 Correct 1 ms 2652 KB Output is correct
56 Correct 6 ms 3928 KB Output is correct
57 Correct 5 ms 2908 KB Output is correct
58 Correct 5 ms 3600 KB Output is correct
59 Correct 6 ms 3932 KB Output is correct
60 Correct 7 ms 4700 KB Output is correct
61 Correct 6 ms 4188 KB Output is correct
62 Correct 13 ms 4700 KB Output is correct
63 Correct 27 ms 3580 KB Output is correct
64 Correct 26 ms 3416 KB Output is correct
65 Correct 39 ms 3668 KB Output is correct
66 Correct 77 ms 5456 KB Output is correct
67 Correct 106 ms 5272 KB Output is correct