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Submission #1020088

# Submission time Handle Problem Language Result Execution time Memory
1020088 2024-07-11T14:16:42 Z Icelast Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 403 ms 262144 KB 
#include <iostream>
#include <bits/stdc++.h>
#define ll int
using namespace std;
const ll maxn = 2*1e5+5, INF = 4e18+9;
const int B = 174;
vector<ll> dijkstra(int n, int s, vector<vector<pair<int, short>>> &adj){
    vector<ll> dist(n+1, INF);
    dist[s] = 0;
    vector<bool> vis(n+1, false);
    priority_queue<pair<ll, ll>, vector<pair<ll, ll>>, greater<pair<ll, ll>>> pq;
    pq.push({0, s});
    while(!pq.empty()){
        ll d_u = pq.top().first;
        int u = pq.top().second;
        pq.pop();
        if(vis[u]){
            continue;
        }
        vis[u] = true;
        for(auto it : adj[u]){
            int v = it.first;
            ll w = it.second;
            if(vis[v]) continue;
            if(dist[v] > d_u+w){
                dist[v] = d_u+w;
                pq.push({dist[v], v});
            }
        }
    }
    return dist;
}
void solve(){
    int n, m;
    cin >> n >> m;
    vector<ll> b(m+1), p(m+1);
    for(int i = 1; i <= m; i++){
        cin >> b[i] >> p[i];
        b[i]++;
    }
    int c = 0;
    vector<vector<int>> cv(n+1, vector<int>(B+1));
    vector<vector<bool>> have_doge(n+1, vector<bool>(B+1, false));
    for(int i = 1; i <= m; i++){
        if(p[i] <= B){
            have_doge[b[i]][p[i]] = true;
        }
    }
    for(int i = 1; i <= n; i++){
        for(int j = 0; j <= B; j++){
            c++;
            cv[i][j] = c;
        }
    }
    int nb = c;
    auto valid = [&](int x) -> bool{
        return (x >= 1 && x <= n);
    };
    vector<vector<pair<int, short>>> adj(nb+1);
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= B; j++){
            int u, v;
            u = cv[i][0];
            v = cv[i][j];
            if(have_doge[i][j]){
                adj[u].push_back({v, 0});
            }
        }
    }
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= B; j++){
            int u, v;
            if(valid(i+j)){
                u = cv[i][j];
                v = cv[i+j][0];
                adj[u].push_back({v, 1});
                v = cv[i+j][j];
                adj[u].push_back({v, 1});
            }
            if(valid(i-j)){
                u = cv[i][j];
                v = cv[i-j][0];
                adj[u].push_back({v, 1});
                v = cv[i-j][j];
                adj[u].push_back({v, 1});
            }
        }
    }
    for(int i = 1; i <= m; i++){
        int pos, u, v;
        pos = b[i];
        if(p[i] <= B) continue;
        for(int j = -B; j <= B; j++){
            if(valid(pos+j*p[i]) && j != 0){
                u = cv[pos][0];
                v = cv[pos+j*p[i]][0];
                adj[u].push_back({v, abs(j)});
            }
        }
    }
    for(int j = 1; j <= n; j++){
        if(abs(b[1]-j)%p[1] == 0){
            ll w = abs(b[1]-j)/p[1];
            adj[0].push_back({cv[j][0], w});
        }
    }
    int S = 0, T = cv[b[2]][0];
    vector<ll> dist = dijkstra(nb, S, adj);
    ll ans = dist[T];
    if(ans == INF){
        ans = -1;
    }
    cout << ans;
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    solve();
}

Compilation message

skyscraper.cpp:5:36: warning: overflow in conversion from 'double' to 'int' changes value from '4.0e+18' to '2147483647' [-Woverflow]
    5 | const ll maxn = 2*1e5+5, INF = 4e18+9;
      |                                ~~~~^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 452 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 356 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 1 ms 1220 KB Output is correct
11 Correct 2 ms 1372 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 2 ms 1116 KB Output is correct
14 Correct 2 ms 1372 KB Output is correct
15 Correct 2 ms 1372 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 1 ms 1116 KB Output is correct
11 Correct 2 ms 1372 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 2 ms 1372 KB Output is correct
15 Correct 2 ms 1376 KB Output is correct
16 Correct 3 ms 2652 KB Output is correct
17 Correct 18 ms 10220 KB Output is correct
18 Correct 33 ms 23940 KB Output is correct
19 Correct 37 ms 27472 KB Output is correct
20 Correct 47 ms 27560 KB Output is correct
21 Correct 7 ms 5208 KB Output is correct
22 Correct 39 ms 24412 KB Output is correct
23 Correct 29 ms 21844 KB Output is correct
24 Correct 38 ms 26224 KB Output is correct
25 Correct 40 ms 27424 KB Output is correct
26 Correct 37 ms 27480 KB Output is correct
27 Correct 39 ms 27472 KB Output is correct
28 Correct 39 ms 27484 KB Output is correct
29 Correct 47 ms 27604 KB Output is correct
30 Correct 41 ms 27488 KB Output is correct
31 Correct 43 ms 27484 KB Output is correct
32 Correct 44 ms 27480 KB Output is correct
33 Correct 48 ms 27480 KB Output is correct
34 Correct 49 ms 27480 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 352 KB Output is correct
3 Correct 0 ms 352 KB Output is correct
4 Correct 0 ms 352 KB Output is correct
5 Correct 0 ms 352 KB Output is correct
6 Correct 0 ms 352 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 1 ms 1116 KB Output is correct
11 Correct 2 ms 1356 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 2 ms 1372 KB Output is correct
15 Correct 2 ms 1372 KB Output is correct
16 Correct 3 ms 2652 KB Output is correct
17 Correct 16 ms 10276 KB Output is correct
18 Correct 32 ms 23872 KB Output is correct
19 Correct 37 ms 27472 KB Output is correct
20 Correct 39 ms 27532 KB Output is correct
21 Correct 7 ms 5212 KB Output is correct
22 Correct 35 ms 24388 KB Output is correct
23 Correct 31 ms 21852 KB Output is correct
24 Correct 37 ms 26196 KB Output is correct
25 Correct 38 ms 27472 KB Output is correct
26 Correct 41 ms 27484 KB Output is correct
27 Correct 39 ms 27472 KB Output is correct
28 Correct 41 ms 27472 KB Output is correct
29 Correct 50 ms 27472 KB Output is correct
30 Correct 43 ms 27476 KB Output is correct
31 Correct 44 ms 27616 KB Output is correct
32 Correct 42 ms 27580 KB Output is correct
33 Correct 54 ms 27476 KB Output is correct
34 Correct 58 ms 27476 KB Output is correct
35 Correct 44 ms 20560 KB Output is correct
36 Correct 23 ms 14936 KB Output is correct
37 Correct 69 ms 27732 KB Output is correct
38 Correct 67 ms 28576 KB Output is correct
39 Correct 62 ms 28832 KB Output is correct
40 Correct 64 ms 28780 KB Output is correct
41 Correct 70 ms 28756 KB Output is correct
42 Correct 42 ms 27948 KB Output is correct
43 Correct 41 ms 27996 KB Output is correct
44 Correct 39 ms 28052 KB Output is correct
45 Correct 103 ms 30032 KB Output is correct
46 Correct 86 ms 30136 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 860 KB Output is correct
10 Correct 2 ms 1116 KB Output is correct
11 Correct 2 ms 1372 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 2 ms 1236 KB Output is correct
15 Correct 2 ms 1372 KB Output is correct
16 Correct 3 ms 2652 KB Output is correct
17 Correct 15 ms 10180 KB Output is correct
18 Correct 31 ms 24060 KB Output is correct
19 Correct 34 ms 27480 KB Output is correct
20 Correct 36 ms 27476 KB Output is correct
21 Correct 7 ms 5208 KB Output is correct
22 Correct 31 ms 24412 KB Output is correct
23 Correct 32 ms 21980 KB Output is correct
24 Correct 40 ms 26204 KB Output is correct
25 Correct 39 ms 27472 KB Output is correct
26 Correct 36 ms 27484 KB Output is correct
27 Correct 36 ms 27484 KB Output is correct
28 Correct 38 ms 27540 KB Output is correct
29 Correct 47 ms 27484 KB Output is correct
30 Correct 39 ms 27532 KB Output is correct
31 Correct 42 ms 27484 KB Output is correct
32 Correct 37 ms 27472 KB Output is correct
33 Correct 47 ms 27480 KB Output is correct
34 Correct 47 ms 27640 KB Output is correct
35 Correct 43 ms 20564 KB Output is correct
36 Correct 23 ms 15060 KB Output is correct
37 Correct 55 ms 27860 KB Output is correct
38 Correct 65 ms 28752 KB Output is correct
39 Correct 69 ms 28752 KB Output is correct
40 Correct 64 ms 28844 KB Output is correct
41 Correct 74 ms 28820 KB Output is correct
42 Correct 38 ms 27988 KB Output is correct
43 Correct 37 ms 27984 KB Output is correct
44 Correct 37 ms 27984 KB Output is correct
45 Correct 78 ms 30036 KB Output is correct
46 Correct 79 ms 30140 KB Output is correct
47 Correct 403 ms 174640 KB Output is correct
48 Runtime error 299 ms 262144 KB Execution killed with signal 9
49 Halted 0 ms 0 KB -