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Submission #1015703

# Submission time Handle Problem Language Result Execution time Memory
1015703 2024-07-06T16:45:31 Z andrei_iorgulescu Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 109816 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;
    int lul = 2e7,cate = 0;
    while (!q.empty())
    {
        pair<int,int> nod = q.front();
        int dehnod = hsh(nod);
        q.pop_front();
        if (luat[dehnod])
            continue;
        cate++;
        if (cate > lul)
            assert(false);
        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 1112 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 1 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 1 ms 1116 KB Output is correct
6 Correct 1 ms 1116 KB Output is correct
7 Correct 1 ms 1112 KB Output is correct
8 Correct 1 ms 1112 KB Output is correct
9 Correct 1 ms 1112 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

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 0 ms 1116 KB Output is correct
4 Correct 0 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 1 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 1112 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 2140 KB Output is correct
24 Correct 6 ms 3164 KB Output is correct
25 Correct 4 ms 2460 KB Output is correct
26 Correct 3 ms 2140 KB Output is correct
27 Correct 3 ms 2140 KB Output is correct
28 Correct 11 ms 4704 KB Output is correct
29 Correct 20 ms 9096 KB Output is correct
30 Correct 6 ms 3420 KB Output is correct
31 Correct 11 ms 5488 KB Output is correct
32 Correct 9 ms 4492 KB Output is correct
33 Correct 43 ms 16812 KB Output is correct
34 Correct 42 ms 16820 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 1 ms 1116 KB Output is correct
3 Correct 0 ms 1116 KB Output is correct
4 Correct 1 ms 1112 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 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 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 7 ms 3160 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 2140 KB Output is correct
24 Correct 6 ms 3164 KB Output is correct
25 Correct 4 ms 2396 KB Output is correct
26 Correct 3 ms 2140 KB Output is correct
27 Correct 3 ms 2140 KB Output is correct
28 Correct 12 ms 4464 KB Output is correct
29 Correct 21 ms 9080 KB Output is correct
30 Correct 6 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 44 ms 16808 KB Output is correct
34 Correct 53 ms 16812 KB Output is correct
35 Correct 60 ms 16956 KB Output is correct
36 Correct 9 ms 3764 KB Output is correct
37 Correct 110 ms 28324 KB Output is correct
38 Correct 92 ms 24048 KB Output is correct
39 Correct 94 ms 24052 KB Output is correct
40 Correct 94 ms 23972 KB Output is correct
41 Correct 99 ms 24004 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 301 ms 65412 KB Output is correct
46 Correct 323 ms 65460 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 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 1112 KB Output is correct
9 Correct 1 ms 1116 KB Output is correct
10 Correct 2 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 1112 KB Output is correct
14 Correct 3 ms 2140 KB Output is correct
15 Correct 3 ms 2140 KB Output is correct
16 Correct 0 ms 1116 KB Output is correct
17 Correct 6 ms 3084 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 0 ms 1116 KB Output is correct
23 Correct 3 ms 2140 KB Output is correct
24 Correct 6 ms 3208 KB Output is correct
25 Correct 4 ms 2396 KB Output is correct
26 Correct 4 ms 2136 KB Output is correct
27 Correct 3 ms 2284 KB Output is correct
28 Correct 10 ms 4720 KB Output is correct
29 Correct 20 ms 9096 KB Output is correct
30 Correct 6 ms 3484 KB Output is correct
31 Correct 12 ms 5484 KB Output is correct
32 Correct 9 ms 4460 KB Output is correct
33 Correct 50 ms 16816 KB Output is correct
34 Correct 45 ms 16816 KB Output is correct
35 Correct 60 ms 16740 KB Output is correct
36 Correct 12 ms 3768 KB Output is correct
37 Correct 104 ms 28428 KB Output is correct
38 Correct 96 ms 24044 KB Output is correct
39 Correct 94 ms 24092 KB Output is correct
40 Correct 96 ms 24048 KB Output is correct
41 Correct 102 ms 24052 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 299 ms 65484 KB Output is correct
46 Correct 326 ms 65520 KB Output is correct
47 Execution timed out 1022 ms 109816 KB Time limit exceeded
48 Halted 0 ms 0 KB -