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Submission #1015729

# Submission time Handle Problem Language Result Execution time Memory
1015729 2024-07-06T17:08:27 Z andrei_iorgulescu Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 262144 KB 
#include <bits/stdc++.h>

using namespace std;

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

int n,m;
int b[30005],p[30005];
unordered_map<int, bool> luat;
bitset<1000000000> viz;
unordered_map<int, int> d;
vector<int> what[30005];
int str,fin;
pair<int,int> q[2000005];

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];
    int bk = 1e6,fr = 1e6;
    q[bk] = {str,0};
    viz[hsh({str,0})] = 1;
    int cate = 0,lul = 1e6;
    while (bk <= fr)
    {
        pair<int,int> nod = q[fr];
        //cout << nod.first << ' ' << nod.second << endl;
        int dehnod = hsh(nod);
        fr--;
        if (luat[dehnod])
            continue;
        if (nod.first == fin and nod.second == 0)
            break;
        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] = 1;
                q[++fr] = (vec);
                d[dehvec] = dist;
            }
            vec = {nod.first + nod.second,nod.second};
            dehvec = hsh(vec);
            if (vec.first >= 0 and vec.first < n and !viz[dehvec])
            {
                viz[dehvec] = 1;
                q[--bk] = vec;
                d[dehvec] = dist + 1;
            }
            vec = {nod.first - nod.second,nod.second};
            dehvec = hsh(vec);
            if (vec.first >= 0 and vec.first < n and !viz[dehvec])
            {
                viz[dehvec] = 1;
                q[--bk] = 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] = 1;
                    q[++fr] = vec;
                    d[dehvec] = dist;
                }
            }
        }
    }
    if (!viz[hsh({fin,0})])
        cout << -1;
    else
        cout << d[hsh({fin,0})];
    return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:31:18: warning: unused variable 'lul' [-Wunused-variable]
   31 |     int cate = 0,lul = 1e6;
      |                  ^~~

Subtask #1
10.0 / 10.0

# 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 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

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1112 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 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 1 ms 1372 KB Output is correct
12 Correct 1 ms 1368 KB Output is correct
13 Correct 1 ms 1368 KB Output is correct
14 Correct 2 ms 2140 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1112 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 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 1 ms 1372 KB Output is correct
12 Correct 1 ms 1372 KB Output is correct
13 Correct 1 ms 1372 KB Output is correct
14 Correct 2 ms 2136 KB Output is correct
15 Correct 1 ms 1628 KB Output is correct
16 Correct 1 ms 1112 KB Output is correct
17 Correct 2 ms 4184 KB Output is correct
18 Correct 1 ms 1116 KB Output is correct
19 Correct 1 ms 1116 KB Output is correct
20 Correct 4 ms 9052 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 7260 KB Output is correct
24 Correct 7 ms 8540 KB Output is correct
25 Correct 1 ms 2620 KB Output is correct
26 Correct 5 ms 8028 KB Output is correct
27 Correct 4 ms 8540 KB Output is correct
28 Correct 8 ms 11028 KB Output is correct
29 Correct 16 ms 14460 KB Output is correct
30 Correct 7 ms 10320 KB Output is correct
31 Correct 11 ms 11796 KB Output is correct
32 Correct 9 ms 11028 KB Output is correct
33 Correct 32 ms 19840 KB Output is correct
34 Correct 26 ms 14704 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 1 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 0 ms 1116 KB Output is correct
8 Correct 0 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 1 ms 1372 KB Output is correct
12 Correct 1 ms 1372 KB Output is correct
13 Correct 1 ms 1376 KB Output is correct
14 Correct 2 ms 2140 KB Output is correct
15 Correct 2 ms 1624 KB Output is correct
16 Correct 0 ms 1116 KB Output is correct
17 Correct 2 ms 4188 KB Output is correct
18 Correct 1 ms 1116 KB Output is correct
19 Correct 1 ms 1116 KB Output is correct
20 Correct 4 ms 9048 KB Output is correct
21 Correct 1 ms 1112 KB Output is correct
22 Correct 1 ms 1116 KB Output is correct
23 Correct 4 ms 7260 KB Output is correct
24 Correct 5 ms 8540 KB Output is correct
25 Correct 2 ms 2652 KB Output is correct
26 Correct 5 ms 8000 KB Output is correct
27 Correct 4 ms 8536 KB Output is correct
28 Correct 12 ms 11028 KB Output is correct
29 Correct 17 ms 14460 KB Output is correct
30 Correct 6 ms 10332 KB Output is correct
31 Correct 10 ms 11756 KB Output is correct
32 Correct 8 ms 11028 KB Output is correct
33 Correct 31 ms 20032 KB Output is correct
34 Correct 22 ms 14716 KB Output is correct
35 Correct 17 ms 10692 KB Output is correct
36 Correct 2 ms 3672 KB Output is correct
37 Correct 10 ms 10912 KB Output is correct
38 Correct 11 ms 10912 KB Output is correct
39 Correct 4 ms 2396 KB Output is correct
40 Correct 8 ms 8284 KB Output is correct
41 Correct 17 ms 12756 KB Output is correct
42 Correct 5 ms 8284 KB Output is correct
43 Correct 5 ms 8796 KB Output is correct
44 Correct 6 ms 9304 KB Output is correct
45 Correct 136 ms 54060 KB Output is correct
46 Correct 60 ms 32420 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1368 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 1112 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 980 KB Output is correct
9 Correct 0 ms 1116 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 1 ms 1372 KB Output is correct
12 Correct 1 ms 1372 KB Output is correct
13 Correct 1 ms 1372 KB Output is correct
14 Correct 2 ms 2140 KB Output is correct
15 Correct 1 ms 1840 KB Output is correct
16 Correct 0 ms 1116 KB Output is correct
17 Correct 2 ms 4188 KB Output is correct
18 Correct 0 ms 1116 KB Output is correct
19 Correct 1 ms 1116 KB Output is correct
20 Correct 4 ms 9200 KB Output is correct
21 Correct 0 ms 1116 KB Output is correct
22 Correct 0 ms 1116 KB Output is correct
23 Correct 4 ms 7260 KB Output is correct
24 Correct 5 ms 8616 KB Output is correct
25 Correct 1 ms 2580 KB Output is correct
26 Correct 3 ms 8028 KB Output is correct
27 Correct 4 ms 8540 KB Output is correct
28 Correct 9 ms 11024 KB Output is correct
29 Correct 15 ms 14348 KB Output is correct
30 Correct 6 ms 10332 KB Output is correct
31 Correct 10 ms 11772 KB Output is correct
32 Correct 8 ms 11024 KB Output is correct
33 Correct 29 ms 19960 KB Output is correct
34 Correct 17 ms 14716 KB Output is correct
35 Correct 15 ms 10696 KB Output is correct
36 Correct 2 ms 3676 KB Output is correct
37 Correct 17 ms 10936 KB Output is correct
38 Correct 10 ms 10844 KB Output is correct
39 Correct 4 ms 2396 KB Output is correct
40 Correct 10 ms 8028 KB Output is correct
41 Correct 15 ms 13000 KB Output is correct
42 Correct 6 ms 8284 KB Output is correct
43 Correct 6 ms 8796 KB Output is correct
44 Correct 6 ms 9304 KB Output is correct
45 Correct 156 ms 53804 KB Output is correct
46 Correct 84 ms 32296 KB Output is correct
47 Correct 28 ms 41904 KB Output is correct
48 Correct 5 ms 1624 KB Output is correct
49 Correct 6 ms 1628 KB Output is correct
50 Correct 3 ms 1628 KB Output is correct
51 Correct 67 ms 98376 KB Output is correct
52 Correct 75 ms 104720 KB Output is correct
53 Correct 22 ms 23388 KB Output is correct
54 Correct 30 ms 64028 KB Output is correct
55 Correct 40 ms 83568 KB Output is correct
56 Correct 62 ms 121420 KB Output is correct
57 Correct 3 ms 2904 KB Output is correct
58 Correct 69 ms 124464 KB Output is correct
59 Correct 65 ms 116160 KB Output is correct
60 Correct 77 ms 116180 KB Output is correct
61 Correct 60 ms 108188 KB Output is correct
62 Correct 256 ms 160476 KB Output is correct
63 Execution timed out 3026 ms 262144 KB Time limit exceeded
64 Halted 0 ms 0 KB -