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Submission #823613

# Submission time Handle Problem Language Result Execution time Memory
823613 2023-08-12T21:23:51 Z Dec0Dedd Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 172 ms 74552 KB 
#include <bits/stdc++.h>

using namespace std;

typedef pair<int, int> pii;

const int N = 3e4+10;
const int S = 100;
const int INF = 1e9;

int n, m, d[N+10];

vector<pii> G[N+10];
map<pii, vector<int>> mp;

void dijk(int v, int end) {
    for (int i=0; i<n; ++i) d[i]=INF;
    d[v]=0;

    priority_queue<pii, vector<pii>, greater<pii>> pq;
    pq.push({0, v});

    while (!pq.empty()) {
        pii x=pq.top(); pq.pop();
        int v=x.second;
        
        if (x.first > d[v]) continue;
        for (auto u : G[v]) {
            if (d[u.second] > u.first+d[v]) {
                d[u.second]=u.first+d[v];
                pq.push({d[u.second], u.second});
            }
        }   
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);

    cin>>n>>m;
    int end=-1, st=-1;
    for (int i=0; i<m; ++i) {
        int b, p; cin>>b>>p;

        mp[{p, b%p}].push_back(b);
        if (i == 1) end=b;
        if (i == 0) st=b;
    }

    if (end == st) {
        cout<<0<<"\n";
        return 0;
    }

    for (auto [x, v] : mp) {
        int j=x.first;
        if (v.empty()) continue;

        v.push_back(0), v.push_back(n);
        sort(v.begin(), v.end());

        int sz=v.size();
        for (int k=1; k+1<sz; ++k) {
            int i=v[k]-j, ds=1;
            while (i >= v[k-1]) G[v[k]].push_back({ds++, i}), i-=j;
            i=v[k]+j, ds=1;
            while (i <= v[k+1]) G[v[k]].push_back({ds++, i}), i+=j;
        }
    } dijk(st, end);

    if (d[end] == INF) cout<<-1<<"\n";
    else cout<<d[end]<<"\n";   
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:57:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   57 |     for (auto [x, v] : mp) {
      |               ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 2 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 1236 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 1 ms 1236 KB Output is correct
15 Correct 1 ms 1236 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 1236 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 1 ms 1236 KB Output is correct
15 Correct 2 ms 1236 KB Output is correct
16 Correct 1 ms 1108 KB Output is correct
17 Correct 2 ms 1364 KB Output is correct
18 Correct 1 ms 1108 KB Output is correct
19 Correct 1 ms 1108 KB Output is correct
20 Correct 1 ms 1108 KB Output is correct
21 Correct 1 ms 1108 KB Output is correct
22 Correct 1 ms 1108 KB Output is correct
23 Correct 1 ms 1108 KB Output is correct
24 Correct 2 ms 1364 KB Output is correct
25 Correct 2 ms 1300 KB Output is correct
26 Correct 1 ms 1108 KB Output is correct
27 Correct 1 ms 1108 KB Output is correct
28 Correct 2 ms 1364 KB Output is correct
29 Correct 3 ms 1876 KB Output is correct
30 Correct 1 ms 1364 KB Output is correct
31 Correct 2 ms 1492 KB Output is correct
32 Correct 2 ms 1364 KB Output is correct
33 Correct 5 ms 2772 KB Output is correct
34 Correct 5 ms 2772 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 0 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 1236 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 1 ms 1236 KB Output is correct
15 Correct 1 ms 1236 KB Output is correct
16 Correct 1 ms 1108 KB Output is correct
17 Correct 2 ms 1364 KB Output is correct
18 Correct 1 ms 1108 KB Output is correct
19 Correct 1 ms 1108 KB Output is correct
20 Correct 1 ms 1108 KB Output is correct
21 Correct 1 ms 1108 KB Output is correct
22 Correct 1 ms 1108 KB Output is correct
23 Correct 1 ms 1236 KB Output is correct
24 Correct 2 ms 1364 KB Output is correct
25 Correct 2 ms 1364 KB Output is correct
26 Correct 2 ms 1108 KB Output is correct
27 Correct 1 ms 1108 KB Output is correct
28 Correct 2 ms 1492 KB Output is correct
29 Correct 3 ms 1876 KB Output is correct
30 Correct 1 ms 1364 KB Output is correct
31 Correct 2 ms 1492 KB Output is correct
32 Correct 2 ms 1364 KB Output is correct
33 Correct 5 ms 2772 KB Output is correct
34 Correct 5 ms 2772 KB Output is correct
35 Correct 16 ms 4768 KB Output is correct
36 Correct 3 ms 1748 KB Output is correct
37 Correct 14 ms 5076 KB Output is correct
38 Correct 19 ms 5988 KB Output is correct
39 Correct 19 ms 6084 KB Output is correct
40 Correct 19 ms 5972 KB Output is correct
41 Correct 23 ms 5988 KB Output is correct
42 Correct 4 ms 1380 KB Output is correct
43 Correct 4 ms 1364 KB Output is correct
44 Correct 4 ms 1364 KB Output is correct
45 Correct 23 ms 8944 KB Output is correct
46 Correct 23 ms 8916 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 984 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 984 KB Output is correct
8 Correct 1 ms 984 KB Output is correct
9 Correct 1 ms 984 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 1236 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 1 ms 1040 KB Output is correct
14 Correct 1 ms 1240 KB Output is correct
15 Correct 1 ms 1236 KB Output is correct
16 Correct 1 ms 1108 KB Output is correct
17 Correct 2 ms 1364 KB Output is correct
18 Correct 1 ms 1108 KB Output is correct
19 Correct 1 ms 1108 KB Output is correct
20 Correct 1 ms 1112 KB Output is correct
21 Correct 1 ms 1108 KB Output is correct
22 Correct 1 ms 1108 KB Output is correct
23 Correct 1 ms 1108 KB Output is correct
24 Correct 2 ms 1364 KB Output is correct
25 Correct 2 ms 1364 KB Output is correct
26 Correct 1 ms 1108 KB Output is correct
27 Correct 1 ms 1108 KB Output is correct
28 Correct 3 ms 1364 KB Output is correct
29 Correct 3 ms 1884 KB Output is correct
30 Correct 1 ms 1364 KB Output is correct
31 Correct 2 ms 1500 KB Output is correct
32 Correct 2 ms 1364 KB Output is correct
33 Correct 5 ms 2780 KB Output is correct
34 Correct 5 ms 2772 KB Output is correct
35 Correct 20 ms 4900 KB Output is correct
36 Correct 3 ms 1748 KB Output is correct
37 Correct 13 ms 5076 KB Output is correct
38 Correct 19 ms 5988 KB Output is correct
39 Correct 19 ms 6020 KB Output is correct
40 Correct 19 ms 5984 KB Output is correct
41 Correct 19 ms 5972 KB Output is correct
42 Correct 4 ms 1364 KB Output is correct
43 Correct 4 ms 1364 KB Output is correct
44 Correct 4 ms 1364 KB Output is correct
45 Correct 23 ms 8940 KB Output is correct
46 Correct 24 ms 8900 KB Output is correct
47 Correct 35 ms 12748 KB Output is correct
48 Correct 16 ms 5840 KB Output is correct
49 Correct 14 ms 4948 KB Output is correct
50 Correct 13 ms 4388 KB Output is correct
51 Correct 34 ms 8808 KB Output is correct
52 Correct 35 ms 9252 KB Output is correct
53 Correct 23 ms 6244 KB Output is correct
54 Correct 2 ms 1620 KB Output is correct
55 Correct 3 ms 2004 KB Output is correct
56 Correct 8 ms 2396 KB Output is correct
57 Correct 26 ms 10144 KB Output is correct
58 Correct 6 ms 2392 KB Output is correct
59 Correct 8 ms 2812 KB Output is correct
60 Correct 9 ms 3360 KB Output is correct
61 Correct 9 ms 3108 KB Output is correct
62 Correct 25 ms 9704 KB Output is correct
63 Correct 67 ms 28100 KB Output is correct
64 Correct 75 ms 36608 KB Output is correct
65 Correct 104 ms 46576 KB Output is correct
66 Correct 167 ms 74240 KB Output is correct
67 Correct 172 ms 74552 KB Output is correct