답안 #199225

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
199225	2020-01-30T11:22:48 Z	Alexa2001	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	100 / 100	226 ms	72292 KB

skyscraper

#include <bits/stdc++.h>

using namespace std;

/// 12:08

const int Nmax = 30005;
const int base = 30007;
typedef pair<int,int> Pair;

vector<int> v[Nmax];
vector<Pair> edge[Nmax];

int salt[Nmax], pos[Nmax], dist[Nmax], last[Nmax];

int n, m;

int solve(int start, int finish)
{
    priority_queue< Pair, vector<Pair>, greater<Pair> > heap;
    heap.push({0, start});

    int i;
    for(i=0; i<n; ++i) dist[i] = 1e9;
    dist[start] = 0;

    while(heap.size())
    {
        int node, dst;
        tie(dst, node) = heap.top();
        heap.pop();
        if(dist[node] != dst) continue;

        if(node == finish) return dst;

        for(auto &it : edge[node])
            if(dist[node] + it.second < dist[it.first])
            {
                dist[it.first] = dist[node] + it.second;
                heap.push({dist[it.first], it.first});
            }
    }

    return -1;
}

int main()
{
  //  freopen("input", "r", stdin);
    cin.sync_with_stdio(false); cin.tie(0);

    cin >> n >> m;

    int i;
    for(i=0; i<m; ++i)
    {
        cin >> pos[i] >> salt[i];
        v[salt[i]].push_back(pos[i]);
    }

    for(i=0; i<n; ++i)
    {
        sort(v[i].begin(), v[i].end());
        v[i].erase( unique(v[i].begin(), v[i].end()) , v[i].end() );
    }

    for(i=1; i<=30000; ++i)
    {
        for(auto it : v[i]) last[it] = i;

        for(auto it : v[i])
        {
            int p, dst;
            for(p = it - i, dst = 1; p >= 0; p -= i, ++dst)
            {
                edge[it].push_back({p, dst});
                if(last[p] == i) break;
            }

            for(p = it + i, dst = 1; p<n; p += i, ++dst)
            {
                edge[it].push_back({p, dst});
                if(last[p] == i) break;
            }
        }
    }

    cout << solve(pos[0], pos[1]) << '\n';

    return 0;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	1788 KB	Output is correct
2	Correct	6 ms	1784 KB	Output is correct
3	Correct	6 ms	1656 KB	Output is correct
4	Correct	6 ms	1784 KB	Output is correct
5	Correct	6 ms	1784 KB	Output is correct
6	Correct	6 ms	1784 KB	Output is correct
7	Correct	6 ms	1784 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	1784 KB	Output is correct
2	Correct	6 ms	1784 KB	Output is correct
3	Correct	5 ms	1784 KB	Output is correct
4	Correct	6 ms	1784 KB	Output is correct
5	Correct	6 ms	1784 KB	Output is correct
6	Correct	6 ms	1784 KB	Output is correct
7	Correct	6 ms	1784 KB	Output is correct
8	Correct	6 ms	1784 KB	Output is correct
9	Correct	5 ms	1784 KB	Output is correct
10	Correct	6 ms	1784 KB	Output is correct
11	Correct	6 ms	1912 KB	Output is correct
12	Correct	6 ms	1784 KB	Output is correct
13	Correct	6 ms	1784 KB	Output is correct
14	Correct	6 ms	1784 KB	Output is correct
15	Correct	6 ms	1784 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	1784 KB	Output is correct
2	Correct	6 ms	1784 KB	Output is correct
3	Correct	6 ms	1784 KB	Output is correct
4	Correct	6 ms	1784 KB	Output is correct
5	Correct	6 ms	1784 KB	Output is correct
6	Correct	6 ms	1784 KB	Output is correct
7	Correct	6 ms	1784 KB	Output is correct
8	Correct	6 ms	1784 KB	Output is correct
9	Correct	6 ms	1784 KB	Output is correct
10	Correct	6 ms	1784 KB	Output is correct
11	Correct	6 ms	1784 KB	Output is correct
12	Correct	6 ms	1784 KB	Output is correct
13	Correct	6 ms	1784 KB	Output is correct
14	Correct	6 ms	1784 KB	Output is correct
15	Correct	6 ms	1784 KB	Output is correct
16	Correct	6 ms	1784 KB	Output is correct
17	Correct	7 ms	2040 KB	Output is correct
18	Correct	7 ms	1912 KB	Output is correct
19	Correct	6 ms	1784 KB	Output is correct
20	Correct	6 ms	1784 KB	Output is correct
21	Correct	7 ms	1784 KB	Output is correct
22	Correct	6 ms	1784 KB	Output is correct
23	Correct	7 ms	1912 KB	Output is correct
24	Correct	7 ms	1912 KB	Output is correct
25	Correct	7 ms	1912 KB	Output is correct
26	Correct	6 ms	1912 KB	Output is correct
27	Correct	7 ms	1912 KB	Output is correct
28	Correct	7 ms	2040 KB	Output is correct
29	Correct	9 ms	2552 KB	Output is correct
30	Correct	7 ms	2040 KB	Output is correct
31	Correct	8 ms	2168 KB	Output is correct
32	Correct	7 ms	2040 KB	Output is correct
33	Correct	11 ms	3320 KB	Output is correct
34	Correct	10 ms	3324 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	1780 KB	Output is correct
2	Correct	6 ms	1784 KB	Output is correct
3	Correct	6 ms	1912 KB	Output is correct
4	Correct	6 ms	1784 KB	Output is correct
5	Correct	6 ms	1784 KB	Output is correct
6	Correct	6 ms	1784 KB	Output is correct
7	Correct	6 ms	1784 KB	Output is correct
8	Correct	6 ms	1784 KB	Output is correct
9	Correct	6 ms	1784 KB	Output is correct
10	Correct	6 ms	1784 KB	Output is correct
11	Correct	6 ms	1784 KB	Output is correct
12	Correct	6 ms	1788 KB	Output is correct
13	Correct	6 ms	1784 KB	Output is correct
14	Correct	6 ms	1912 KB	Output is correct
15	Correct	7 ms	1912 KB	Output is correct
16	Correct	6 ms	1784 KB	Output is correct
17	Correct	7 ms	1912 KB	Output is correct
18	Correct	6 ms	1912 KB	Output is correct
19	Correct	6 ms	1784 KB	Output is correct
20	Correct	7 ms	1912 KB	Output is correct
21	Correct	6 ms	1784 KB	Output is correct
22	Correct	6 ms	1784 KB	Output is correct
23	Correct	6 ms	1912 KB	Output is correct
24	Correct	7 ms	1912 KB	Output is correct
25	Correct	7 ms	1912 KB	Output is correct
26	Correct	7 ms	1912 KB	Output is correct
27	Correct	7 ms	1888 KB	Output is correct
28	Correct	7 ms	2040 KB	Output is correct
29	Correct	9 ms	2680 KB	Output is correct
30	Correct	7 ms	2040 KB	Output is correct
31	Correct	8 ms	2300 KB	Output is correct
32	Correct	7 ms	2040 KB	Output is correct
33	Correct	12 ms	3320 KB	Output is correct
34	Correct	11 ms	3352 KB	Output is correct
35	Correct	15 ms	3192 KB	Output is correct
36	Correct	8 ms	2040 KB	Output is correct
37	Correct	16 ms	4216 KB	Output is correct
38	Correct	18 ms	4088 KB	Output is correct
39	Correct	17 ms	3964 KB	Output is correct
40	Correct	18 ms	3960 KB	Output is correct
41	Correct	17 ms	3960 KB	Output is correct
42	Correct	13 ms	2296 KB	Output is correct
43	Correct	12 ms	2296 KB	Output is correct
44	Correct	12 ms	2296 KB	Output is correct
45	Correct	25 ms	6776 KB	Output is correct
46	Correct	22 ms	6904 KB	Output is correct

Subtask #5
43.0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	1784 KB	Output is correct
2	Correct	5 ms	1784 KB	Output is correct
3	Correct	5 ms	1784 KB	Output is correct
4	Correct	6 ms	1784 KB	Output is correct
5	Correct	6 ms	1784 KB	Output is correct
6	Correct	6 ms	1784 KB	Output is correct
7	Correct	6 ms	1784 KB	Output is correct
8	Correct	6 ms	1784 KB	Output is correct
9	Correct	6 ms	1784 KB	Output is correct
10	Correct	6 ms	1784 KB	Output is correct
11	Correct	6 ms	1784 KB	Output is correct
12	Correct	6 ms	1784 KB	Output is correct
13	Correct	6 ms	1784 KB	Output is correct
14	Correct	6 ms	1784 KB	Output is correct
15	Correct	6 ms	1784 KB	Output is correct
16	Correct	6 ms	1784 KB	Output is correct
17	Correct	7 ms	2040 KB	Output is correct
18	Correct	6 ms	1912 KB	Output is correct
19	Correct	6 ms	1784 KB	Output is correct
20	Correct	7 ms	1784 KB	Output is correct
21	Correct	6 ms	1784 KB	Output is correct
22	Correct	6 ms	1784 KB	Output is correct
23	Correct	6 ms	1912 KB	Output is correct
24	Correct	7 ms	1912 KB	Output is correct
25	Correct	7 ms	1912 KB	Output is correct
26	Correct	7 ms	1912 KB	Output is correct
27	Correct	6 ms	1912 KB	Output is correct
28	Correct	7 ms	2040 KB	Output is correct
29	Correct	9 ms	2552 KB	Output is correct
30	Correct	7 ms	2168 KB	Output is correct
31	Correct	8 ms	2168 KB	Output is correct
32	Correct	7 ms	2044 KB	Output is correct
33	Correct	11 ms	3320 KB	Output is correct
34	Correct	11 ms	3352 KB	Output is correct
35	Correct	15 ms	3192 KB	Output is correct
36	Correct	7 ms	2040 KB	Output is correct
37	Correct	15 ms	4216 KB	Output is correct
38	Correct	18 ms	4088 KB	Output is correct
39	Correct	17 ms	3960 KB	Output is correct
40	Correct	18 ms	3960 KB	Output is correct
41	Correct	18 ms	4216 KB	Output is correct
42	Correct	11 ms	2296 KB	Output is correct
43	Correct	11 ms	2300 KB	Output is correct
44	Correct	11 ms	2300 KB	Output is correct
45	Correct	24 ms	6776 KB	Output is correct
46	Correct	22 ms	6904 KB	Output is correct
47	Correct	35 ms	11384 KB	Output is correct
48	Correct	21 ms	4980 KB	Output is correct
49	Correct	18 ms	4088 KB	Output is correct
50	Correct	15 ms	3960 KB	Output is correct
51	Correct	34 ms	6712 KB	Output is correct
52	Correct	35 ms	7220 KB	Output is correct
53	Correct	18 ms	3572 KB	Output is correct
54	Correct	8 ms	2296 KB	Output is correct
55	Correct	9 ms	2804 KB	Output is correct
56	Correct	18 ms	3192 KB	Output is correct
57	Correct	22 ms	10744 KB	Output is correct
58	Correct	14 ms	3308 KB	Output is correct
59	Correct	17 ms	3572 KB	Output is correct
60	Correct	17 ms	4340 KB	Output is correct
61	Correct	17 ms	3700 KB	Output is correct
62	Correct	28 ms	7412 KB	Output is correct
63	Correct	79 ms	25852 KB	Output is correct
64	Correct	91 ms	34404 KB	Output is correct
65	Correct	123 ms	44524 KB	Output is correct
66	Correct	226 ms	72292 KB	Output is correct
67	Correct	183 ms	72292 KB	Output is correct

답안 #199225

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