oj.uz

Submission #736280

# Submission time Handle Problem Language Result Execution time Memory
736280 2023-05-05T11:52:23 Z Alihan_8 Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 341 ms 262144 KB 
#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()
#define pb push_back
#define ln '\n'
#define int long long

template <class _T>
bool chmin(_T &x, const _T &y){
    bool flag = false;
    if ( x > y ){
        x = y; flag |= true;
    }
    return flag;
}

template <class _T>
bool chmax(_T &x, const _T &y){
    bool flag = false;
    if ( x < y ){
        x = y; flag |= true;
    }
    return flag;
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n, m; cin >> n >> m;
    vector <int> g[n];
    int st, en;
    for ( int i = 1; i <= m; i++ ){
        int x, y; cin >> x >> y;
        g[x].pb(y);
        if ( i == 1 ) st = x;
        if ( i == 2 ) en = x;
    }
    const int inf = 1e15 + 1, N = 2e3 + 1;
    vector <vector<int>> dis(n, vector <int> (N, inf));
    deque <pair<int,int>> dq;
    for ( auto i: g[st] ){
        dq.pb({st, i});
        dis[st][i] = 0;
    }
    while ( !dq.empty() ){
        auto [x, p] = dq.front();
        dq.pop_front();
        int v = dis[x][p];
        if ( x - p >= 0 and chmin(dis[x - p][p], v + 1) ){
            dq.pb({x - p, p});
        }
        if ( x + p < n and chmin(dis[x + p][p], v + 1) ){
            dq.pb({x + p, p});
        }
        for ( auto to: g[x] ){
            if ( chmin(dis[x][to], v) ){
                dq.push_front({x, to});
            }
        }
    }
    int ans = *min_element(all(dis[en]));
    if ( ans == inf ) ans = -1;
    cout << ans;

    cout << '\n';
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:34:9: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]
   34 |     int st, en;
      |         ^~
skyscraper.cpp:64:38: warning: 'en' may be used uninitialized in this function [-Wmaybe-uninitialized]
   64 |     int ans = *min_element(all(dis[en]));
      |                                      ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 852 KB Output is correct
9 Correct 1 ms 1236 KB Output is correct
10 Correct 2 ms 1876 KB Output is correct
11 Correct 2 ms 1868 KB Output is correct
12 Correct 1 ms 1860 KB Output is correct
13 Correct 1 ms 1876 KB Output is correct
14 Correct 2 ms 1876 KB Output is correct
15 Correct 3 ms 1900 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 468 KB Output is correct
6 Correct 0 ms 468 KB Output is correct
7 Correct 0 ms 468 KB Output is correct
8 Correct 1 ms 852 KB Output is correct
9 Correct 1 ms 1216 KB Output is correct
10 Correct 1 ms 1876 KB Output is correct
11 Correct 2 ms 1876 KB Output is correct
12 Correct 2 ms 1876 KB Output is correct
13 Correct 2 ms 1876 KB Output is correct
14 Correct 2 ms 1864 KB Output is correct
15 Correct 2 ms 1876 KB Output is correct
16 Correct 2 ms 3400 KB Output is correct
17 Correct 7 ms 11988 KB Output is correct
18 Correct 12 ms 27732 KB Output is correct
19 Correct 15 ms 31684 KB Output is correct
20 Correct 14 ms 31828 KB Output is correct
21 Correct 3 ms 6484 KB Output is correct
22 Correct 14 ms 28244 KB Output is correct
23 Correct 12 ms 25408 KB Output is correct
24 Correct 14 ms 30152 KB Output is correct
25 Correct 15 ms 31804 KB Output is correct
26 Correct 15 ms 31692 KB Output is correct
27 Correct 15 ms 31756 KB Output is correct
28 Correct 16 ms 31852 KB Output is correct
29 Correct 16 ms 31688 KB Output is correct
30 Correct 17 ms 31700 KB Output is correct
31 Correct 16 ms 31700 KB Output is correct
32 Correct 16 ms 31728 KB Output is correct
33 Correct 17 ms 31828 KB Output is correct
34 Correct 18 ms 31816 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 852 KB Output is correct
9 Correct 1 ms 1236 KB Output is correct
10 Correct 1 ms 1876 KB Output is correct
11 Correct 2 ms 1876 KB Output is correct
12 Correct 1 ms 1876 KB Output is correct
13 Correct 1 ms 1876 KB Output is correct
14 Correct 2 ms 1876 KB Output is correct
15 Correct 2 ms 1876 KB Output is correct
16 Correct 2 ms 3396 KB Output is correct
17 Correct 9 ms 11988 KB Output is correct
18 Correct 13 ms 27732 KB Output is correct
19 Correct 15 ms 31700 KB Output is correct
20 Correct 19 ms 31820 KB Output is correct
21 Correct 4 ms 6540 KB Output is correct
22 Correct 18 ms 28308 KB Output is correct
23 Correct 16 ms 25428 KB Output is correct
24 Correct 15 ms 30164 KB Output is correct
25 Correct 15 ms 31804 KB Output is correct
26 Correct 15 ms 31700 KB Output is correct
27 Correct 15 ms 31796 KB Output is correct
28 Correct 16 ms 31828 KB Output is correct
29 Correct 15 ms 31700 KB Output is correct
30 Correct 14 ms 31700 KB Output is correct
31 Correct 16 ms 31764 KB Output is correct
32 Correct 20 ms 31772 KB Output is correct
33 Correct 17 ms 31800 KB Output is correct
34 Correct 19 ms 31700 KB Output is correct
35 Correct 30 ms 23724 KB Output is correct
36 Correct 12 ms 17492 KB Output is correct
37 Correct 39 ms 31572 KB Output is correct
38 Correct 43 ms 32736 KB Output is correct
39 Correct 47 ms 32844 KB Output is correct
40 Correct 50 ms 32828 KB Output is correct
41 Correct 50 ms 32844 KB Output is correct
42 Correct 23 ms 32204 KB Output is correct
43 Correct 24 ms 32080 KB Output is correct
44 Correct 20 ms 32252 KB Output is correct
45 Correct 44 ms 32812 KB Output is correct
46 Correct 54 ms 32752 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 408 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 852 KB Output is correct
9 Correct 1 ms 1236 KB Output is correct
10 Correct 1 ms 1876 KB Output is correct
11 Correct 2 ms 1876 KB Output is correct
12 Correct 1 ms 1876 KB Output is correct
13 Correct 2 ms 1876 KB Output is correct
14 Correct 2 ms 1876 KB Output is correct
15 Correct 2 ms 1876 KB Output is correct
16 Correct 2 ms 3412 KB Output is correct
17 Correct 8 ms 11988 KB Output is correct
18 Correct 14 ms 27744 KB Output is correct
19 Correct 14 ms 31700 KB Output is correct
20 Correct 15 ms 31828 KB Output is correct
21 Correct 4 ms 6484 KB Output is correct
22 Correct 14 ms 28228 KB Output is correct
23 Correct 15 ms 25428 KB Output is correct
24 Correct 15 ms 30164 KB Output is correct
25 Correct 15 ms 31820 KB Output is correct
26 Correct 15 ms 31700 KB Output is correct
27 Correct 15 ms 31812 KB Output is correct
28 Correct 18 ms 31808 KB Output is correct
29 Correct 22 ms 31712 KB Output is correct
30 Correct 14 ms 31680 KB Output is correct
31 Correct 15 ms 31700 KB Output is correct
32 Correct 16 ms 31700 KB Output is correct
33 Correct 21 ms 31700 KB Output is correct
34 Correct 22 ms 31780 KB Output is correct
35 Correct 32 ms 23696 KB Output is correct
36 Correct 11 ms 17508 KB Output is correct
37 Correct 43 ms 31592 KB Output is correct
38 Correct 60 ms 32820 KB Output is correct
39 Correct 58 ms 32776 KB Output is correct
40 Correct 45 ms 32864 KB Output is correct
41 Correct 45 ms 32852 KB Output is correct
42 Correct 19 ms 32112 KB Output is correct
43 Correct 26 ms 32212 KB Output is correct
44 Correct 19 ms 32160 KB Output is correct
45 Correct 43 ms 32804 KB Output is correct
46 Correct 41 ms 32744 KB Output is correct
47 Runtime error 341 ms 262144 KB Execution killed with signal 6
48 Halted 0 ms 0 KB -