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Submission #110199

# Submission time Handle Problem Language Result Execution time Memory
110199 2019-05-10T07:16:52 Z SamAnd Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 857 ms 226132 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 30004;
struct ban
{
    int x, p;
    int d;
    ban(){}
    ban(int x, int p, int d)
    {
        this->x = x;
        this->p = p;
        this->d = d;
    }
};

int n, m;
int b[N], p[N];

vector<int> a[N];

bool c[N][N];

int bfs()
{
    queue<ban> q;
    for (int i = 0; i < a[b[0]].size(); ++i)
    {
        if (!c[b[0]][a[b[0]][i]])
        {
            c[b[0]][a[b[0]][i]] = true;
            q.push(ban(b[0], a[b[0]][i], 0));
        }
    }
    while (!q.empty())
    {
        ban t;
        t = q.front();
        q.pop();
        if (t.x == b[1])
            return t.d;
        if (t.x + t.p < n)
        {
            if (!c[t.x + t.p][t.p])
            {
                c[t.x + t.p][t.p] = true;
                q.push(ban(t.x + t.p, t.p, t.d + 1));
            }
            for (int i = 0; i < a[t.x + t.p].size(); ++i)
            {
                ban h(t.x + t.p, a[t.x + t.p][i], t.d + 1);
                if (!c[h.x][h.p])
                {
                    c[h.x][h.p] = true;
                    q.push(h);
                }
            }
        }
        if (t.x - t.p >= 0)
        {
            if (!c[t.x - t.p][t.p])
            {
                c[t.x - t.p][t.p] = true;
                q.push(ban(t.x - t.p, t.p, t.d + 1));
            }
            for (int i = 0; i < a[t.x - t.p].size(); ++i)
            {
                ban h(t.x - t.p, a[t.x - t.p][i], t.d + 1);
                if (!c[h.x][h.p])
                {
                    c[h.x][h.p] = true;
                    q.push(h);
                }
            }
        }
    }
    return -1;
}

int main()
{
    cin >> n >> m;
    for (int i = 0; i < m; ++i)
    {
        cin >> b[i] >> p[i];
        a[b[i]].push_back(p[i]);
    }

    cout << bfs() << endl;
    return 0;
}

Compilation message

skyscraper.cpp: In function 'int bfs()':
skyscraper.cpp:27:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < a[b[0]].size(); ++i)
                     ~~^~~~~~~~~~~~~~~~
skyscraper.cpp:49:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int i = 0; i < a[t.x + t.p].size(); ++i)
                             ~~^~~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:66:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int i = 0; i < a[t.x - t.p].size(); ++i)
                             ~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1024 KB Output is correct
2 Correct 3 ms 1024 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 3 ms 1024 KB Output is correct
6 Correct 3 ms 1024 KB Output is correct
7 Correct 3 ms 1152 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1024 KB Output is correct
2 Correct 2 ms 1024 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 2 ms 1024 KB Output is correct
6 Correct 3 ms 1024 KB Output is correct
7 Correct 5 ms 1152 KB Output is correct
8 Correct 4 ms 1024 KB Output is correct
9 Correct 3 ms 1152 KB Output is correct
10 Correct 3 ms 1408 KB Output is correct
11 Correct 5 ms 1408 KB Output is correct
12 Correct 4 ms 1408 KB Output is correct
13 Correct 6 ms 1536 KB Output is correct
14 Correct 6 ms 1536 KB Output is correct
15 Correct 5 ms 1536 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1024 KB Output is correct
2 Correct 3 ms 1024 KB Output is correct
3 Correct 5 ms 1024 KB Output is correct
4 Correct 4 ms 1024 KB Output is correct
5 Correct 4 ms 1024 KB Output is correct
6 Correct 3 ms 1024 KB Output is correct
7 Correct 3 ms 1024 KB Output is correct
8 Correct 2 ms 1068 KB Output is correct
9 Correct 3 ms 1152 KB Output is correct
10 Correct 4 ms 1408 KB Output is correct
11 Correct 5 ms 1408 KB Output is correct
12 Correct 6 ms 1408 KB Output is correct
13 Correct 5 ms 1536 KB Output is correct
14 Correct 5 ms 1536 KB Output is correct
15 Correct 5 ms 1536 KB Output is correct
16 Correct 3 ms 1024 KB Output is correct
17 Correct 9 ms 4352 KB Output is correct
18 Correct 4 ms 1024 KB Output is correct
19 Correct 3 ms 1152 KB Output is correct
20 Correct 16 ms 9216 KB Output is correct
21 Correct 4 ms 1152 KB Output is correct
22 Correct 4 ms 1152 KB Output is correct
23 Correct 11 ms 7808 KB Output is correct
24 Correct 15 ms 9856 KB Output is correct
25 Correct 6 ms 2816 KB Output is correct
26 Correct 13 ms 7884 KB Output is correct
27 Correct 12 ms 8576 KB Output is correct
28 Correct 16 ms 11384 KB Output is correct
29 Correct 12 ms 9216 KB Output is correct
30 Correct 14 ms 9216 KB Output is correct
31 Correct 13 ms 9216 KB Output is correct
32 Correct 13 ms 9216 KB Output is correct
33 Correct 18 ms 9316 KB Output is correct
34 Correct 16 ms 9344 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1024 KB Output is correct
2 Correct 4 ms 1024 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1052 KB Output is correct
5 Correct 2 ms 1024 KB Output is correct
6 Correct 3 ms 1024 KB Output is correct
7 Correct 3 ms 1152 KB Output is correct
8 Correct 3 ms 1024 KB Output is correct
9 Correct 3 ms 1152 KB Output is correct
10 Correct 4 ms 1280 KB Output is correct
11 Correct 4 ms 1408 KB Output is correct
12 Correct 5 ms 1400 KB Output is correct
13 Correct 5 ms 1536 KB Output is correct
14 Correct 6 ms 1536 KB Output is correct
15 Correct 5 ms 1536 KB Output is correct
16 Correct 4 ms 1024 KB Output is correct
17 Correct 9 ms 4352 KB Output is correct
18 Correct 4 ms 1152 KB Output is correct
19 Correct 3 ms 1152 KB Output is correct
20 Correct 14 ms 9216 KB Output is correct
21 Correct 4 ms 1024 KB Output is correct
22 Correct 7 ms 1024 KB Output is correct
23 Correct 12 ms 7808 KB Output is correct
24 Correct 14 ms 9856 KB Output is correct
25 Correct 7 ms 2816 KB Output is correct
26 Correct 12 ms 7936 KB Output is correct
27 Correct 12 ms 8576 KB Output is correct
28 Correct 20 ms 11520 KB Output is correct
29 Correct 13 ms 9216 KB Output is correct
30 Correct 16 ms 9216 KB Output is correct
31 Correct 15 ms 9216 KB Output is correct
32 Correct 12 ms 9216 KB Output is correct
33 Correct 19 ms 9344 KB Output is correct
34 Correct 21 ms 9228 KB Output is correct
35 Correct 34 ms 10368 KB Output is correct
36 Correct 10 ms 4480 KB Output is correct
37 Correct 30 ms 11172 KB Output is correct
38 Correct 37 ms 13688 KB Output is correct
39 Correct 24 ms 2560 KB Output is correct
40 Correct 34 ms 5880 KB Output is correct
41 Correct 53 ms 12664 KB Output is correct
42 Correct 26 ms 8440 KB Output is correct
43 Correct 32 ms 9084 KB Output is correct
44 Correct 38 ms 9848 KB Output is correct
45 Correct 54 ms 10616 KB Output is correct
46 Correct 46 ms 10360 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1024 KB Output is correct
2 Correct 3 ms 1024 KB Output is correct
3 Correct 3 ms 1152 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 3 ms 1024 KB Output is correct
6 Correct 3 ms 1024 KB Output is correct
7 Correct 3 ms 1024 KB Output is correct
8 Correct 2 ms 1024 KB Output is correct
9 Correct 9 ms 1152 KB Output is correct
10 Correct 4 ms 1280 KB Output is correct
11 Correct 5 ms 1408 KB Output is correct
12 Correct 4 ms 1408 KB Output is correct
13 Correct 5 ms 1536 KB Output is correct
14 Correct 7 ms 1536 KB Output is correct
15 Correct 4 ms 1536 KB Output is correct
16 Correct 4 ms 1024 KB Output is correct
17 Correct 10 ms 4352 KB Output is correct
18 Correct 4 ms 1152 KB Output is correct
19 Correct 4 ms 1152 KB Output is correct
20 Correct 12 ms 9216 KB Output is correct
21 Correct 3 ms 1024 KB Output is correct
22 Correct 5 ms 1152 KB Output is correct
23 Correct 11 ms 7808 KB Output is correct
24 Correct 17 ms 9728 KB Output is correct
25 Correct 7 ms 2816 KB Output is correct
26 Correct 11 ms 7936 KB Output is correct
27 Correct 12 ms 8568 KB Output is correct
28 Correct 17 ms 11392 KB Output is correct
29 Correct 14 ms 9216 KB Output is correct
30 Correct 14 ms 9216 KB Output is correct
31 Correct 13 ms 9216 KB Output is correct
32 Correct 14 ms 9216 KB Output is correct
33 Correct 18 ms 9344 KB Output is correct
34 Correct 15 ms 9344 KB Output is correct
35 Correct 29 ms 10488 KB Output is correct
36 Correct 10 ms 4480 KB Output is correct
37 Correct 35 ms 11128 KB Output is correct
38 Correct 39 ms 13688 KB Output is correct
39 Correct 32 ms 2552 KB Output is correct
40 Correct 25 ms 6016 KB Output is correct
41 Correct 41 ms 12536 KB Output is correct
42 Correct 26 ms 8516 KB Output is correct
43 Correct 28 ms 9080 KB Output is correct
44 Correct 26 ms 9728 KB Output is correct
45 Correct 60 ms 10616 KB Output is correct
46 Correct 54 ms 10364 KB Output is correct
47 Correct 65 ms 35376 KB Output is correct
48 Correct 25 ms 1912 KB Output is correct
49 Correct 19 ms 1792 KB Output is correct
50 Correct 23 ms 1656 KB Output is correct
51 Correct 276 ms 192812 KB Output is correct
52 Correct 299 ms 212160 KB Output is correct
53 Correct 62 ms 24184 KB Output is correct
54 Correct 66 ms 62712 KB Output is correct
55 Correct 92 ms 82808 KB Output is correct
56 Correct 143 ms 124056 KB Output is correct
57 Correct 6 ms 2944 KB Output is correct
58 Correct 154 ms 123568 KB Output is correct
59 Correct 137 ms 114296 KB Output is correct
60 Correct 150 ms 114296 KB Output is correct
61 Correct 237 ms 111100 KB Output is correct
62 Correct 420 ms 226132 KB Output is correct
63 Correct 485 ms 140920 KB Output is correct
64 Correct 538 ms 135080 KB Output is correct
65 Correct 567 ms 133148 KB Output is correct
66 Correct 857 ms 131064 KB Output is correct
67 Correct 570 ms 127584 KB Output is correct