oj.uz

Submission #1015700

# Submission time Handle Problem Language Result Execution time Memory
1015700 2024-07-06T16:43:33 Z andrei_iorgulescu Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 109836 KB 
#include <bits/stdc++.h>

using namespace std;

int hsh(pair<int,int> pr)
{
    return pr.first * 31000 + pr.second;
}

pair<int,int> dehsh(int x)
{
    return {x / 31000, x % 31000};
}

int n,m;
int b[30005],p[30005];
unordered_map<int, bool> viz,luat;
unordered_map<int, int> d;
vector<int> what[30005];
int str,fin;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin >> n >> m;
    for (int i = 1; i <= m; i++)
        cin >> b[i] >> p[i],what[b[i]].push_back(p[i]);
    str = b[1],fin = b[2];
    deque<pair<int,int>> q;
    q.push_back({str,0});
    viz[hsh({str,0})] = true;
    while (!q.empty())
    {
        pair<int,int> nod = q.front();
        int dehnod = hsh(nod);
        q.pop_front();
        if (luat[dehnod])
            continue;
        luat[dehnod] = true;
        int dist = d[dehnod];
        if (nod.second != 0)
        {
            pair<int,int> vec;
            vec = {nod.first,0};
            int dehvec = hsh(vec);
            if (!viz[dehvec] or d[dehvec] > dist)
            {
                viz[dehvec] = true;
                q.push_front(vec);
                d[dehvec] = dist;
            }

            vec = {nod.first + nod.second,nod.second};
            dehvec = hsh(vec);
            if (!viz[dehvec] and vec.first >= 0 and vec.first < n)
            {
                viz[dehvec] = true;
                q.push_back(vec);
                d[dehvec] = dist + 1;
            }

            vec = {nod.first - nod.second,nod.second};
            dehvec = hsh(vec);
            if (!viz[dehvec] and vec.first >= 0 and vec.first < n)
            {
                viz[dehvec] = true;
                q.push_back(vec);
                d[dehvec] = dist + 1;
            }
        }
        else
        {
            for (auto it : what[nod.first])
            {
                pair<int,int> vec = {nod.first,it};
                int dehvec = hsh(vec);
                if (!viz[dehvec] or d[dehvec] > dist)
                {
                    viz[dehvec] = true;
                    q.push_front(vec);
                    d[dehvec] = dist;
                }
            }
        }
    }
    if (!viz[hsh({fin,0})])
        cout << -1;
    else
        cout << d[hsh({fin,0})];
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1116 KB Output is correct
2 Correct 1 ms 1116 KB Output is correct
3 Correct 0 ms 1116 KB Output is correct
4 Correct 0 ms 1116 KB Output is correct
5 Correct 0 ms 1116 KB Output is correct
6 Correct 0 ms 1116 KB Output is correct
7 Correct 0 ms 1116 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1116 KB Output is correct
2 Correct 0 ms 1116 KB Output is correct
3 Correct 0 ms 1116 KB Output is correct
4 Correct 0 ms 1116 KB Output is correct
5 Correct 0 ms 1116 KB Output is correct
6 Correct 0 ms 1116 KB Output is correct
7 Correct 0 ms 1116 KB Output is correct
8 Correct 1 ms 1116 KB Output is correct
9 Correct 1 ms 1116 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 2 ms 1628 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 3 ms 2140 KB Output is correct
15 Correct 3 ms 2136 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1116 KB Output is correct
2 Correct 1 ms 1116 KB Output is correct
3 Correct 1 ms 1116 KB Output is correct
4 Correct 1 ms 1116 KB Output is correct
5 Correct 1 ms 1116 KB Output is correct
6 Correct 0 ms 1116 KB Output is correct
7 Correct 0 ms 1116 KB Output is correct
8 Correct 1 ms 1116 KB Output is correct
9 Correct 1 ms 1116 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 2 ms 1628 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 3 ms 2140 KB Output is correct
15 Correct 3 ms 2140 KB Output is correct
16 Correct 1 ms 1116 KB Output is correct
17 Correct 6 ms 3204 KB Output is correct
18 Correct 1 ms 1116 KB Output is correct
19 Correct 1 ms 1116 KB Output is correct
20 Correct 2 ms 1756 KB Output is correct
21 Correct 1 ms 1116 KB Output is correct
22 Correct 1 ms 1116 KB Output is correct
23 Correct 4 ms 2140 KB Output is correct
24 Correct 6 ms 3164 KB Output is correct
25 Correct 4 ms 2392 KB Output is correct
26 Correct 3 ms 2136 KB Output is correct
27 Correct 3 ms 2140 KB Output is correct
28 Correct 10 ms 4508 KB Output is correct
29 Correct 20 ms 8984 KB Output is correct
30 Correct 5 ms 3420 KB Output is correct
31 Correct 11 ms 5488 KB Output is correct
32 Correct 9 ms 4464 KB Output is correct
33 Correct 38 ms 16824 KB Output is correct
34 Correct 43 ms 16816 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1116 KB Output is correct
2 Correct 0 ms 1116 KB Output is correct
3 Correct 0 ms 1116 KB Output is correct
4 Correct 0 ms 1116 KB Output is correct
5 Correct 0 ms 1116 KB Output is correct
6 Correct 1 ms 1116 KB Output is correct
7 Correct 0 ms 1116 KB Output is correct
8 Correct 1 ms 1116 KB Output is correct
9 Correct 1 ms 1116 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 2 ms 1628 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 4 ms 2140 KB Output is correct
15 Correct 3 ms 2140 KB Output is correct
16 Correct 1 ms 1116 KB Output is correct
17 Correct 6 ms 3164 KB Output is correct
18 Correct 1 ms 1116 KB Output is correct
19 Correct 1 ms 1116 KB Output is correct
20 Correct 2 ms 1628 KB Output is correct
21 Correct 1 ms 1116 KB Output is correct
22 Correct 1 ms 1116 KB Output is correct
23 Correct 3 ms 2252 KB Output is correct
24 Correct 6 ms 2996 KB Output is correct
25 Correct 4 ms 2396 KB Output is correct
26 Correct 3 ms 2284 KB Output is correct
27 Correct 3 ms 2140 KB Output is correct
28 Correct 11 ms 4464 KB Output is correct
29 Correct 21 ms 9100 KB Output is correct
30 Correct 6 ms 3420 KB Output is correct
31 Correct 11 ms 5520 KB Output is correct
32 Correct 9 ms 4608 KB Output is correct
33 Correct 45 ms 16704 KB Output is correct
34 Correct 44 ms 16812 KB Output is correct
35 Correct 61 ms 16884 KB Output is correct
36 Correct 9 ms 3768 KB Output is correct
37 Correct 122 ms 28440 KB Output is correct
38 Correct 102 ms 24004 KB Output is correct
39 Correct 93 ms 24008 KB Output is correct
40 Correct 108 ms 24044 KB Output is correct
41 Correct 104 ms 24048 KB Output is correct
42 Correct 5 ms 2652 KB Output is correct
43 Correct 5 ms 2396 KB Output is correct
44 Correct 4 ms 1884 KB Output is correct
45 Correct 289 ms 65512 KB Output is correct
46 Correct 311 ms 65684 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1116 KB Output is correct
2 Correct 0 ms 1116 KB Output is correct
3 Correct 1 ms 1116 KB Output is correct
4 Correct 1 ms 1116 KB Output is correct
5 Correct 1 ms 1116 KB Output is correct
6 Correct 0 ms 1116 KB Output is correct
7 Correct 0 ms 1116 KB Output is correct
8 Correct 0 ms 1116 KB Output is correct
9 Correct 0 ms 1116 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 2 ms 1856 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 3 ms 2140 KB Output is correct
15 Correct 3 ms 2140 KB Output is correct
16 Correct 1 ms 1116 KB Output is correct
17 Correct 6 ms 3164 KB Output is correct
18 Correct 1 ms 1116 KB Output is correct
19 Correct 0 ms 1116 KB Output is correct
20 Correct 2 ms 1628 KB Output is correct
21 Correct 1 ms 1116 KB Output is correct
22 Correct 1 ms 1368 KB Output is correct
23 Correct 4 ms 2136 KB Output is correct
24 Correct 6 ms 3164 KB Output is correct
25 Correct 5 ms 2392 KB Output is correct
26 Correct 3 ms 2140 KB Output is correct
27 Correct 3 ms 2140 KB Output is correct
28 Correct 10 ms 4720 KB Output is correct
29 Correct 21 ms 9084 KB Output is correct
30 Correct 6 ms 3492 KB Output is correct
31 Correct 13 ms 5488 KB Output is correct
32 Correct 9 ms 4472 KB Output is correct
33 Correct 45 ms 16840 KB Output is correct
34 Correct 42 ms 16816 KB Output is correct
35 Correct 62 ms 16952 KB Output is correct
36 Correct 9 ms 3768 KB Output is correct
37 Correct 106 ms 28420 KB Output is correct
38 Correct 104 ms 24052 KB Output is correct
39 Correct 93 ms 24048 KB Output is correct
40 Correct 84 ms 24108 KB Output is correct
41 Correct 95 ms 24044 KB Output is correct
42 Correct 6 ms 2652 KB Output is correct
43 Correct 5 ms 2396 KB Output is correct
44 Correct 4 ms 1884 KB Output is correct
45 Correct 281 ms 65388 KB Output is correct
46 Correct 271 ms 65576 KB Output is correct
47 Execution timed out 1000 ms 109836 KB Time limit exceeded
48 Halted 0 ms 0 KB -