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Submission #1015794

# Submission time Handle Problem Language Result Execution time Memory
1015794 2024-07-06T19:29:43 Z andrei_iorgulescu Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 307 ms 130280 KB 
#include <bits/stdc++.h>

using namespace std;

int inf = 1e9;

int n,m;
int b[30005],p[30005];
vector<int> what[30005];
set<int> resturi[30005];
vector<int> r[30005];
vector<int> noduri[30005];
int splv[30005];

signed 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]);
    for (int i = 1; i <= m; i++)
        resturi[p[i]].insert(b[i] % p[i]);
    for (int i = 1; i < n; i++)
        for (auto it : resturi[i])
            r[i].push_back(it);
    for (int i = 0; i < n; i++)
        noduri[0].push_back(i);
    for (int i = 1; i < n; i++)
    {
        for (int j = 0; j < n; j += i)
        {
            for (auto it : r[i])
                if (it + j < n)
                    noduri[i].push_back(j + it);
        }
    }
    int N = 0;
    for (int i = 0; i < n; i++)
        N += noduri[i].size();
    vector<int> d(N);
    for (int i = 0; i < N; i++)
        d[i] = inf;
    d[b[1]] = 0;
    vector<bool> luat(N);
    vector<pair<int,int>> cine;///inaltimea si pozitia in cadrul noduri[h]
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < noduri[i].size(); j++)
            cine.push_back({i,j});
    }
    deque<int> dq;
    dq.push_back(b[1]);
    while (!dq.empty())
    {
        int nod = dq.front();
        dq.pop_front();
        if (luat[nod])
            continue;
        luat[nod] = true;
        if (nod >= n)
        {
            ///nu e primul nivel
            pair<int,int> pos = cine[nod];
            int i = noduri[pos.first][pos.second];
            if (d[i] > d[nod])
            {
                d[i] = d[nod];
                dq.push_front(i);
            }

            if (i - pos.first >= 0)
            {
                int vec = nod - (int)r[pos.first].size();
                if (d[vec] > d[nod] + 1)
                {
                    d[vec] = d[nod] + 1;
                    dq.push_back(vec);
                }
            }

            if (i + pos.first < n)
            {
                int vec = nod + (int)r[pos.first].size();
                if (d[vec] > d[nod] + 1)
                {
                    d[vec] = d[nod] + 1;
                    dq.push_back(vec);
                }
            }
        }
        else
        {
            ///primul nivel
            for (auto it : what[nod])
            {
                if (it >= n)
                    continue;
                int vec = 0,pas = 1 << 25;
                while (pas != 0)
                {
                    if (vec + pas < N)
                    {
                        pair<int,int> xx = {cine[vec + pas].first,noduri[cine[vec + pas].first][cine[vec + pas].second]};
                        pair<int,int> yy = {it,nod};
                        if (xx <= yy)
                            vec += pas;
                    }
                    pas /= 2;
                }
                if (d[vec] > d[nod])
                {
                    d[vec] = d[nod];
                    dq.push_front(vec);
                }
            }
        }
    }
    if (d[b[2]] == inf)
        cout << -1;
    else
        cout << d[b[2]];
    return 0;
}

/**
Mama lor de limite...
Pai bun, complexitatea e O(Nsqrt), acum ca sa fie si constanta mai buna pot face gen:
- pun pe fiecare inaltime ce cladiri am nevoie
- ordinea nodurilor din graf va fi sortata dupa h, la eg dupa i
- asta imi face viata simpla pentru ca nodul din st / dr lui x = (h,i) este x +- (cate resturi modulo h apar in alea de la h)
**/

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:50:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         for (int j = 0; j < noduri[i].size(); j++)
      |                         ~~^~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3928 KB Output is correct
2 Correct 1 ms 3932 KB Output is correct
3 Correct 1 ms 3988 KB Output is correct
4 Correct 1 ms 3932 KB Output is correct
5 Correct 1 ms 3932 KB Output is correct
6 Correct 1 ms 3932 KB Output is correct
7 Correct 1 ms 3932 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3932 KB Output is correct
2 Correct 1 ms 3956 KB Output is correct
3 Correct 1 ms 3932 KB Output is correct
4 Correct 1 ms 3932 KB Output is correct
5 Correct 1 ms 3932 KB Output is correct
6 Correct 1 ms 3932 KB Output is correct
7 Correct 1 ms 3932 KB Output is correct
8 Correct 1 ms 3932 KB Output is correct
9 Correct 1 ms 3988 KB Output is correct
10 Correct 1 ms 3932 KB Output is correct
11 Correct 2 ms 4188 KB Output is correct
12 Correct 2 ms 3928 KB Output is correct
13 Correct 1 ms 3928 KB Output is correct
14 Correct 2 ms 4184 KB Output is correct
15 Correct 2 ms 4188 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3932 KB Output is correct
2 Correct 1 ms 3988 KB Output is correct
3 Correct 1 ms 3940 KB Output is correct
4 Correct 1 ms 3932 KB Output is correct
5 Correct 1 ms 3932 KB Output is correct
6 Correct 1 ms 3932 KB Output is correct
7 Correct 1 ms 3932 KB Output is correct
8 Correct 1 ms 3932 KB Output is correct
9 Correct 1 ms 3932 KB Output is correct
10 Correct 1 ms 3932 KB Output is correct
11 Correct 2 ms 4188 KB Output is correct
12 Correct 1 ms 3932 KB Output is correct
13 Correct 1 ms 3932 KB Output is correct
14 Correct 2 ms 4184 KB Output is correct
15 Correct 2 ms 4248 KB Output is correct
16 Correct 1 ms 3932 KB Output is correct
17 Correct 2 ms 4444 KB Output is correct
18 Correct 2 ms 4188 KB Output is correct
19 Correct 1 ms 4188 KB Output is correct
20 Correct 2 ms 3932 KB Output is correct
21 Correct 1 ms 3932 KB Output is correct
22 Correct 2 ms 4188 KB Output is correct
23 Correct 2 ms 4188 KB Output is correct
24 Correct 3 ms 4444 KB Output is correct
25 Correct 2 ms 4500 KB Output is correct
26 Correct 1 ms 4188 KB Output is correct
27 Correct 2 ms 4188 KB Output is correct
28 Correct 3 ms 4700 KB Output is correct
29 Correct 4 ms 5080 KB Output is correct
30 Correct 2 ms 4444 KB Output is correct
31 Correct 2 ms 4824 KB Output is correct
32 Correct 2 ms 4568 KB Output is correct
33 Correct 5 ms 6208 KB Output is correct
34 Correct 4 ms 6144 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3932 KB Output is correct
2 Correct 1 ms 3988 KB Output is correct
3 Correct 1 ms 3928 KB Output is correct
4 Correct 1 ms 3932 KB Output is correct
5 Correct 1 ms 3960 KB Output is correct
6 Correct 1 ms 3772 KB Output is correct
7 Correct 1 ms 3932 KB Output is correct
8 Correct 1 ms 3984 KB Output is correct
9 Correct 1 ms 3928 KB Output is correct
10 Correct 1 ms 3932 KB Output is correct
11 Correct 2 ms 4188 KB Output is correct
12 Correct 1 ms 3932 KB Output is correct
13 Correct 1 ms 3932 KB Output is correct
14 Correct 2 ms 4188 KB Output is correct
15 Correct 2 ms 4188 KB Output is correct
16 Correct 1 ms 3932 KB Output is correct
17 Correct 2 ms 4444 KB Output is correct
18 Correct 1 ms 4188 KB Output is correct
19 Correct 2 ms 4188 KB Output is correct
20 Correct 1 ms 3932 KB Output is correct
21 Correct 1 ms 3932 KB Output is correct
22 Correct 1 ms 4188 KB Output is correct
23 Correct 2 ms 4304 KB Output is correct
24 Correct 2 ms 4444 KB Output is correct
25 Correct 2 ms 4444 KB Output is correct
26 Correct 2 ms 4252 KB Output is correct
27 Correct 2 ms 4444 KB Output is correct
28 Correct 3 ms 4700 KB Output is correct
29 Correct 3 ms 5080 KB Output is correct
30 Correct 2 ms 4444 KB Output is correct
31 Correct 2 ms 4824 KB Output is correct
32 Correct 2 ms 4564 KB Output is correct
33 Correct 4 ms 6112 KB Output is correct
34 Correct 4 ms 6112 KB Output is correct
35 Correct 16 ms 7892 KB Output is correct
36 Correct 3 ms 4700 KB Output is correct
37 Correct 15 ms 9240 KB Output is correct
38 Correct 23 ms 9932 KB Output is correct
39 Correct 22 ms 9936 KB Output is correct
40 Correct 23 ms 9932 KB Output is correct
41 Correct 25 ms 10192 KB Output is correct
42 Correct 7 ms 4696 KB Output is correct
43 Correct 5 ms 4696 KB Output is correct
44 Correct 5 ms 4660 KB Output is correct
45 Correct 27 ms 14288 KB Output is correct
46 Correct 31 ms 15312 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3932 KB Output is correct
2 Correct 1 ms 3932 KB Output is correct
3 Correct 1 ms 3932 KB Output is correct
4 Correct 1 ms 3932 KB Output is correct
5 Correct 1 ms 3932 KB Output is correct
6 Correct 1 ms 3932 KB Output is correct
7 Correct 1 ms 3932 KB Output is correct
8 Correct 2 ms 3932 KB Output is correct
9 Correct 2 ms 4188 KB Output is correct
10 Correct 1 ms 3932 KB Output is correct
11 Correct 2 ms 4188 KB Output is correct
12 Correct 1 ms 3932 KB Output is correct
13 Correct 1 ms 3996 KB Output is correct
14 Correct 2 ms 4188 KB Output is correct
15 Correct 2 ms 4188 KB Output is correct
16 Correct 1 ms 3932 KB Output is correct
17 Correct 2 ms 4444 KB Output is correct
18 Correct 1 ms 4188 KB Output is correct
19 Correct 1 ms 4188 KB Output is correct
20 Correct 2 ms 3932 KB Output is correct
21 Correct 1 ms 3932 KB Output is correct
22 Correct 1 ms 4188 KB Output is correct
23 Correct 1 ms 4188 KB Output is correct
24 Correct 2 ms 4444 KB Output is correct
25 Correct 2 ms 4316 KB Output is correct
26 Correct 2 ms 4260 KB Output is correct
27 Correct 2 ms 4304 KB Output is correct
28 Correct 3 ms 4696 KB Output is correct
29 Correct 3 ms 5080 KB Output is correct
30 Correct 2 ms 4380 KB Output is correct
31 Correct 2 ms 4824 KB Output is correct
32 Correct 2 ms 4568 KB Output is correct
33 Correct 5 ms 6160 KB Output is correct
34 Correct 4 ms 6112 KB Output is correct
35 Correct 13 ms 7892 KB Output is correct
36 Correct 3 ms 4768 KB Output is correct
37 Correct 16 ms 9168 KB Output is correct
38 Correct 21 ms 9936 KB Output is correct
39 Correct 19 ms 9912 KB Output is correct
40 Correct 21 ms 9900 KB Output is correct
41 Correct 21 ms 9936 KB Output is correct
42 Correct 5 ms 4700 KB Output is correct
43 Correct 5 ms 4768 KB Output is correct
44 Correct 5 ms 4696 KB Output is correct
45 Correct 36 ms 14288 KB Output is correct
46 Correct 28 ms 14292 KB Output is correct
47 Correct 49 ms 21348 KB Output is correct
48 Correct 13 ms 10960 KB Output is correct
49 Correct 11 ms 10192 KB Output is correct
50 Correct 9 ms 9448 KB Output is correct
51 Correct 34 ms 15428 KB Output is correct
52 Correct 33 ms 15816 KB Output is correct
53 Correct 19 ms 8916 KB Output is correct
54 Correct 4 ms 5148 KB Output is correct
55 Correct 4 ms 5844 KB Output is correct
56 Correct 9 ms 6612 KB Output is correct
57 Correct 19 ms 12816 KB Output is correct
58 Correct 7 ms 6328 KB Output is correct
59 Correct 9 ms 6608 KB Output is correct
60 Correct 10 ms 7896 KB Output is correct
61 Correct 14 ms 8152 KB Output is correct
62 Correct 30 ms 16076 KB Output is correct
63 Correct 131 ms 59096 KB Output is correct
64 Correct 132 ms 62648 KB Output is correct
65 Correct 195 ms 72112 KB Output is correct
66 Correct 288 ms 130228 KB Output is correct
67 Correct 307 ms 130280 KB Output is correct