Submission #236686

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
236686	2020-06-02T20:01:47 Z	DS007	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	300 ms	131156 KB

skyscraper

#include <bits/stdc++.h>
using namespace std;
#define int long long

const int N = 30000;
vector<pair<int, int>> adj[N];
int b[N], p[N];
set<int> inv[N];
int n, m;

void solveTestCase() {
    cin >> n >> m;
    for (int i = 0; i < m; i++) {
        cin >> b[i] >> p[i];
        inv[b[i]].insert(p[i]);
    }

    for (int i = 0; i < n; i++) {
        for (int j : inv[i]) {
            for (int k = i - j, l = 1; k >= 0; k -= j, l++) {
                adj[i].emplace_back(k, l);
                if (inv[k].count(j))
                    break;
            }
            for (int k = i + j, l = 1; k < n; k += j, l++) {
                adj[i].emplace_back(k, l);
                if (inv[k].count(j))
                    break;
            }
        }
    }

    int dist[n];
    fill(dist, dist + n, 1e18);
    dist[b[0]] = 0;
    priority_queue<pair<int, int>, vector<pair<int, int>>, decltype(greater<>())> pq;
    pq.push({0, b[0]});
    set<int> done;

    while (!pq.empty()) {
        auto temp = pq.top();
        pq.pop();

        if (done.count(temp.second))
            continue;
        done.insert(temp.second);
        assert(temp.first == dist[temp.second] && temp.first != 1e18);

        for (auto i : adj[temp.second]) {
            if (dist[i.first] > temp.first + i.second) {
                dist[i.first] = temp.first + i.second;
                pq.push({dist[i.first], i.first});
            }
        }
    }

    cout << (dist[b[1]] == 1e18 ? -1 : dist[b[1]]);
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int test = 1;
    // cin >> test;
    while (test--)
        solveTestCase();
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	2432 KB	Output is correct
2	Correct	6 ms	2432 KB	Output is correct
3	Correct	6 ms	2432 KB	Output is correct
4	Correct	6 ms	2432 KB	Output is correct
5	Correct	6 ms	2432 KB	Output is correct
6	Correct	6 ms	2432 KB	Output is correct
7	Correct	5 ms	2432 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	2432 KB	Output is correct
2	Correct	5 ms	2432 KB	Output is correct
3	Correct	6 ms	2432 KB	Output is correct
4	Correct	6 ms	2432 KB	Output is correct
5	Correct	5 ms	2432 KB	Output is correct
6	Correct	6 ms	2432 KB	Output is correct
7	Correct	6 ms	2432 KB	Output is correct
8	Correct	6 ms	2432 KB	Output is correct
9	Correct	6 ms	2432 KB	Output is correct
10	Correct	6 ms	2560 KB	Output is correct
11	Correct	7 ms	2688 KB	Output is correct
12	Correct	6 ms	2432 KB	Output is correct
13	Correct	6 ms	2560 KB	Output is correct
14	Correct	6 ms	2688 KB	Output is correct
15	Correct	6 ms	2688 KB	Output is correct

Subtask #3
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	2432 KB	Output is correct
2	Correct	6 ms	2432 KB	Output is correct
3	Correct	6 ms	2432 KB	Output is correct
4	Correct	7 ms	2432 KB	Output is correct
5	Correct	5 ms	2432 KB	Output is correct
6	Correct	6 ms	2432 KB	Output is correct
7	Correct	6 ms	2432 KB	Output is correct
8	Correct	6 ms	2432 KB	Output is correct
9	Correct	6 ms	2432 KB	Output is correct
10	Correct	6 ms	2560 KB	Output is correct
11	Correct	7 ms	2688 KB	Output is correct
12	Correct	6 ms	2560 KB	Output is correct
13	Correct	7 ms	2560 KB	Output is correct
14	Correct	7 ms	2688 KB	Output is correct
15	Correct	7 ms	2688 KB	Output is correct
16	Correct	7 ms	2560 KB	Output is correct
17	Correct	8 ms	2944 KB	Output is correct
18	Correct	7 ms	2688 KB	Output is correct
19	Correct	6 ms	2688 KB	Output is correct
20	Correct	7 ms	2816 KB	Output is correct
21	Correct	6 ms	2560 KB	Output is correct
22	Correct	6 ms	2688 KB	Output is correct
23	Correct	7 ms	2688 KB	Output is correct
24	Correct	8 ms	2944 KB	Output is correct
25	Correct	8 ms	2816 KB	Output is correct
26	Correct	7 ms	2816 KB	Output is correct
27	Correct	7 ms	2816 KB	Output is correct
28	Correct	8 ms	3072 KB	Output is correct
29	Correct	10 ms	4096 KB	Output is correct
30	Correct	7 ms	3072 KB	Output is correct
31	Correct	8 ms	3456 KB	Output is correct
32	Correct	8 ms	3072 KB	Output is correct
33	Correct	13 ms	5384 KB	Output is correct
34	Correct	13 ms	5256 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	2432 KB	Output is correct
2	Correct	6 ms	2432 KB	Output is correct
3	Correct	6 ms	2432 KB	Output is correct
4	Correct	6 ms	2432 KB	Output is correct
5	Correct	5 ms	2432 KB	Output is correct
6	Correct	6 ms	2432 KB	Output is correct
7	Correct	6 ms	2432 KB	Output is correct
8	Correct	6 ms	2432 KB	Output is correct
9	Correct	6 ms	2432 KB	Output is correct
10	Correct	6 ms	2560 KB	Output is correct
11	Correct	7 ms	2688 KB	Output is correct
12	Correct	6 ms	2560 KB	Output is correct
13	Correct	6 ms	2560 KB	Output is correct
14	Correct	7 ms	2688 KB	Output is correct
15	Correct	6 ms	2688 KB	Output is correct
16	Correct	7 ms	2560 KB	Output is correct
17	Correct	7 ms	2944 KB	Output is correct
18	Correct	6 ms	2688 KB	Output is correct
19	Correct	6 ms	2560 KB	Output is correct
20	Correct	8 ms	2816 KB	Output is correct
21	Correct	6 ms	2560 KB	Output is correct
22	Correct	7 ms	2688 KB	Output is correct
23	Correct	7 ms	2944 KB	Output is correct
24	Correct	8 ms	2944 KB	Output is correct
25	Correct	8 ms	2944 KB	Output is correct
26	Correct	7 ms	2816 KB	Output is correct
27	Correct	7 ms	2688 KB	Output is correct
28	Correct	8 ms	3072 KB	Output is correct
29	Correct	10 ms	4096 KB	Output is correct
30	Correct	8 ms	3072 KB	Output is correct
31	Correct	8 ms	3456 KB	Output is correct
32	Correct	8 ms	3072 KB	Output is correct
33	Correct	13 ms	5256 KB	Output is correct
34	Correct	14 ms	5256 KB	Output is correct
35	Correct	30 ms	6192 KB	Output is correct
36	Correct	9 ms	3200 KB	Output is correct
37	Correct	27 ms	7808 KB	Output is correct
38	Correct	33 ms	7936 KB	Output is correct
39	Correct	30 ms	7936 KB	Output is correct
40	Correct	34 ms	7936 KB	Output is correct
41	Correct	32 ms	8064 KB	Output is correct
42	Correct	11 ms	3456 KB	Output is correct
43	Correct	12 ms	3328 KB	Output is correct
44	Correct	11 ms	3456 KB	Output is correct
45	Correct	34 ms	13180 KB	Output is correct
46	Correct	36 ms	13308 KB	Output is correct

Subtask #5
43.0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	2432 KB	Output is correct
2	Correct	7 ms	2432 KB	Output is correct
3	Correct	6 ms	2432 KB	Output is correct
4	Correct	6 ms	2432 KB	Output is correct
5	Correct	6 ms	2432 KB	Output is correct
6	Correct	6 ms	2432 KB	Output is correct
7	Correct	6 ms	2432 KB	Output is correct
8	Correct	6 ms	2432 KB	Output is correct
9	Correct	6 ms	2432 KB	Output is correct
10	Correct	6 ms	2560 KB	Output is correct
11	Correct	7 ms	2688 KB	Output is correct
12	Correct	6 ms	2432 KB	Output is correct
13	Correct	6 ms	2560 KB	Output is correct
14	Correct	6 ms	2688 KB	Output is correct
15	Correct	6 ms	2688 KB	Output is correct
16	Correct	7 ms	2572 KB	Output is correct
17	Correct	7 ms	2944 KB	Output is correct
18	Correct	6 ms	2688 KB	Output is correct
19	Correct	7 ms	2688 KB	Output is correct
20	Correct	7 ms	2816 KB	Output is correct
21	Correct	6 ms	2560 KB	Output is correct
22	Correct	6 ms	2560 KB	Output is correct
23	Correct	7 ms	2772 KB	Output is correct
24	Correct	8 ms	2944 KB	Output is correct
25	Correct	8 ms	2816 KB	Output is correct
26	Correct	7 ms	2816 KB	Output is correct
27	Correct	7 ms	2816 KB	Output is correct
28	Correct	8 ms	3072 KB	Output is correct
29	Correct	11 ms	4096 KB	Output is correct
30	Correct	7 ms	3072 KB	Output is correct
31	Correct	8 ms	3456 KB	Output is correct
32	Correct	8 ms	3200 KB	Output is correct
33	Correct	13 ms	5384 KB	Output is correct
34	Correct	13 ms	5384 KB	Output is correct
35	Correct	24 ms	6144 KB	Output is correct
36	Correct	9 ms	3200 KB	Output is correct
37	Correct	29 ms	7808 KB	Output is correct
38	Correct	31 ms	7928 KB	Output is correct
39	Correct	30 ms	7936 KB	Output is correct
40	Correct	30 ms	7984 KB	Output is correct
41	Correct	31 ms	7936 KB	Output is correct
42	Correct	11 ms	3456 KB	Output is correct
43	Correct	12 ms	3328 KB	Output is correct
44	Correct	11 ms	3456 KB	Output is correct
45	Correct	36 ms	13172 KB	Output is correct
46	Correct	36 ms	13180 KB	Output is correct
47	Correct	68 ms	21872 KB	Output is correct
48	Correct	27 ms	8832 KB	Output is correct
49	Correct	21 ms	6912 KB	Output is correct
50	Correct	18 ms	6544 KB	Output is correct
51	Correct	66 ms	13452 KB	Output is correct
52	Correct	72 ms	14232 KB	Output is correct
53	Correct	35 ms	8436 KB	Output is correct
54	Correct	11 ms	4092 KB	Output is correct
55	Correct	14 ms	5240 KB	Output is correct
56	Correct	26 ms	7552 KB	Output is correct
57	Correct	72 ms	20584 KB	Output is correct
58	Correct	20 ms	6548 KB	Output is correct
59	Correct	23 ms	7032 KB	Output is correct
60	Correct	25 ms	8312 KB	Output is correct
61	Correct	26 ms	7032 KB	Output is correct
62	Correct	45 ms	15728 KB	Output is correct
63	Correct	104 ms	47848 KB	Output is correct
64	Correct	114 ms	54640 KB	Output is correct
65	Correct	150 ms	74216 KB	Output is correct
66	Correct	300 ms	131032 KB	Output is correct
67	Correct	288 ms	131156 KB	Output is correct

Submission #236686

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 12.0 / 12.0

Subtask #3 14.0 / 14.0

Subtask #4 21.0 / 21.0

Subtask #5 43.0 / 43.0

Subtask #1
10.0 / 10.0

Subtask #2
12.0 / 12.0

Subtask #3
14.0 / 14.0

Subtask #4
21.0 / 21.0

Subtask #5
43.0 / 43.0