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Submission #14434

# Submission time Handle Problem Language Result Execution time Memory
14434 2015-05-14T11:44:07 Z gs14004 Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 338 ms 75924 KB 
#include <cstdio>
#include <cstdlib>
#include <vector>
#include <algorithm>
#include <utility>
#include <queue>
using namespace std;
typedef pair<int,int> pi;
const int B = 150;

int m, n;

bool r_dir[30005][B], l_dir[30005][B];
bool vis[30005 * B];
vector<pi> graph[30005];
queue<int> pq[30005];

int dijkstra(int st, int ed){
    pq[0].push(st);
    int dist = 0, cnt = 1;
    while (cnt) {
        while (!pq[dist%n].empty()) {
            int t = pq[dist%n].front();
            pq[dist%n].pop();
            cnt--;
            if(t == ed){
                return dist;
            }
            if(vis[t]) continue;
            vis[t] = 1;
            if(t < n){
                for (auto &i : graph[t]){
                    if(!vis[i.second])
                        pq[(i.first + dist)%n].push(i.second), cnt++;
                }
            }
            int px = t % n;
            int py = t / n;
            if(r_dir[px][py] && px + py < n){
                if(!vis[py * n + px + py]){
                    cnt++;
                    pq[(dist + 1)%n].push(py * n + px + py);
                }
            }
            if(l_dir[px][py] && px - py >= 0){
                if(!vis[py * n + px - py]){
                    cnt++;
                    pq[(dist + 1)%n].push(py * n + px - py);
                }
            }
            if(py){
                if(!vis[px]){
                    cnt++;
                    pq[dist%n].push(px);
                }
            }
        }
        dist++;
    }
    return -1;
}

int main(){
    int st = 0, ed = 0;
    scanf("%d %d",&n,&m);
    for (int i=0; i<m; i++) {
        int x,y;
        scanf("%d %d",&x,&y);
        if(i == 0){
            st = x;
        }
        else if(i == 1){
            ed = x;
        }
        if(y < B){
            r_dir[x][y] = 1;
            l_dir[x][y] = 1;
            graph[x].push_back(pi(0,x + n * y));
        }
        else{
            for (int j=1; x - j * y >= 0; j++) {
                graph[x].push_back(pi(j,x - j * y));
            }
            for (int j=1; x + j * y < n; j++) {
                graph[x].push_back(pi(j,x + j * y));
            }
        }
    }
    for (int i=1; i<B; i++) {
        for (int j=i; j<n; j++) {
            r_dir[j][i] |= r_dir[j - i][i];
        }
        for (int j=n-i-1; j>=0; j--) {
            l_dir[j][i] |= l_dir[j + i][i];
        }
    }
    printf("%d",dijkstra(st,ed));
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 35508 KB Output is correct
2 Correct 0 ms 35508 KB Output is correct
3 Correct 4 ms 35508 KB Output is correct
4 Correct 0 ms 35508 KB Output is correct
5 Correct 10 ms 35508 KB Output is correct
6 Correct 14 ms 35508 KB Output is correct
7 Correct 6 ms 35508 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 35508 KB Output is correct
2 Correct 0 ms 35508 KB Output is correct
3 Correct 24 ms 35508 KB Output is correct
4 Correct 12 ms 35508 KB Output is correct
5 Correct 8 ms 35508 KB Output is correct
6 Correct 7 ms 35508 KB Output is correct
7 Correct 11 ms 35508 KB Output is correct
8 Correct 17 ms 35508 KB Output is correct
9 Correct 8 ms 35508 KB Output is correct
10 Correct 20 ms 35508 KB Output is correct
11 Correct 15 ms 35640 KB Output is correct
12 Correct 8 ms 35644 KB Output is correct
13 Correct 18 ms 35644 KB Output is correct
14 Correct 17 ms 35640 KB Output is correct
15 Correct 17 ms 35640 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 35508 KB Output is correct
2 Correct 12 ms 35508 KB Output is correct
3 Correct 25 ms 35508 KB Output is correct
4 Correct 8 ms 35508 KB Output is correct
5 Correct 13 ms 35508 KB Output is correct
6 Correct 12 ms 35508 KB Output is correct
7 Correct 4 ms 35508 KB Output is correct
8 Correct 0 ms 35508 KB Output is correct
9 Correct 25 ms 35508 KB Output is correct
10 Correct 25 ms 35508 KB Output is correct
11 Correct 17 ms 35640 KB Output is correct
12 Correct 5 ms 35644 KB Output is correct
13 Correct 15 ms 35644 KB Output is correct
14 Correct 13 ms 35640 KB Output is correct
15 Correct 16 ms 35640 KB Output is correct
16 Correct 13 ms 35640 KB Output is correct
17 Correct 18 ms 35640 KB Output is correct
18 Correct 5 ms 35640 KB Output is correct
19 Correct 13 ms 35640 KB Output is correct
20 Correct 7 ms 35640 KB Output is correct
21 Correct 13 ms 35508 KB Output is correct
22 Correct 3 ms 35640 KB Output is correct
23 Correct 29 ms 35640 KB Output is correct
24 Correct 17 ms 35640 KB Output is correct
25 Correct 18 ms 35640 KB Output is correct
26 Correct 12 ms 35640 KB Output is correct
27 Correct 20 ms 35640 KB Output is correct
28 Correct 26 ms 35640 KB Output is correct
29 Correct 22 ms 35640 KB Output is correct
30 Correct 18 ms 35508 KB Output is correct
31 Correct 23 ms 35508 KB Output is correct
32 Correct 16 ms 35640 KB Output is correct
33 Correct 16 ms 35640 KB Output is correct
34 Correct 23 ms 35640 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 35508 KB Output is correct
2 Correct 24 ms 35508 KB Output is correct
3 Correct 10 ms 35508 KB Output is correct
4 Correct 20 ms 35508 KB Output is correct
5 Correct 0 ms 35508 KB Output is correct
6 Correct 12 ms 35508 KB Output is correct
7 Correct 16 ms 35508 KB Output is correct
8 Correct 8 ms 35508 KB Output is correct
9 Correct 23 ms 35508 KB Output is correct
10 Correct 0 ms 35508 KB Output is correct
11 Correct 11 ms 35640 KB Output is correct
12 Correct 17 ms 35644 KB Output is correct
13 Correct 11 ms 35644 KB Output is correct
14 Correct 13 ms 35640 KB Output is correct
15 Correct 11 ms 35640 KB Output is correct
16 Correct 21 ms 35640 KB Output is correct
17 Correct 11 ms 35640 KB Output is correct
18 Correct 11 ms 35640 KB Output is correct
19 Correct 15 ms 35640 KB Output is correct
20 Correct 9 ms 35640 KB Output is correct
21 Correct 16 ms 35508 KB Output is correct
22 Correct 15 ms 35640 KB Output is correct
23 Correct 14 ms 35640 KB Output is correct
24 Correct 19 ms 35640 KB Output is correct
25 Correct 21 ms 35640 KB Output is correct
26 Correct 18 ms 35640 KB Output is correct
27 Correct 14 ms 35640 KB Output is correct
28 Correct 17 ms 35640 KB Output is correct
29 Correct 20 ms 35640 KB Output is correct
30 Correct 20 ms 35508 KB Output is correct
31 Correct 16 ms 35508 KB Output is correct
32 Correct 18 ms 35640 KB Output is correct
33 Correct 12 ms 35640 KB Output is correct
34 Correct 18 ms 35640 KB Output is correct
35 Correct 24 ms 36036 KB Output is correct
36 Correct 14 ms 35640 KB Output is correct
37 Correct 11 ms 36432 KB Output is correct
38 Correct 20 ms 36300 KB Output is correct
39 Correct 26 ms 36300 KB Output is correct
40 Correct 20 ms 36300 KB Output is correct
41 Correct 24 ms 36300 KB Output is correct
42 Correct 14 ms 36024 KB Output is correct
43 Correct 18 ms 36024 KB Output is correct
44 Correct 11 ms 36032 KB Output is correct
45 Correct 44 ms 38340 KB Output is correct
46 Correct 41 ms 38336 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 35508 KB Output is correct
2 Correct 8 ms 35508 KB Output is correct
3 Correct 12 ms 35508 KB Output is correct
4 Correct 12 ms 35508 KB Output is correct
5 Correct 16 ms 35508 KB Output is correct
6 Correct 10 ms 35508 KB Output is correct
7 Correct 13 ms 35508 KB Output is correct
8 Correct 6 ms 35508 KB Output is correct
9 Correct 19 ms 35508 KB Output is correct
10 Correct 16 ms 35508 KB Output is correct
11 Correct 21 ms 35640 KB Output is correct
12 Correct 6 ms 35644 KB Output is correct
13 Correct 6 ms 35644 KB Output is correct
14 Correct 9 ms 35640 KB Output is correct
15 Correct 8 ms 35640 KB Output is correct
16 Correct 15 ms 35640 KB Output is correct
17 Correct 18 ms 35640 KB Output is correct
18 Correct 18 ms 35640 KB Output is correct
19 Correct 21 ms 35640 KB Output is correct
20 Correct 11 ms 35640 KB Output is correct
21 Correct 18 ms 35508 KB Output is correct
22 Correct 13 ms 35640 KB Output is correct
23 Correct 14 ms 35640 KB Output is correct
24 Correct 10 ms 35640 KB Output is correct
25 Correct 21 ms 35640 KB Output is correct
26 Correct 17 ms 35640 KB Output is correct
27 Correct 7 ms 35640 KB Output is correct
28 Correct 8 ms 35640 KB Output is correct
29 Correct 11 ms 35640 KB Output is correct
30 Correct 24 ms 35508 KB Output is correct
31 Correct 14 ms 35508 KB Output is correct
32 Correct 22 ms 35640 KB Output is correct
33 Correct 22 ms 35640 KB Output is correct
34 Correct 26 ms 35640 KB Output is correct
35 Correct 25 ms 36036 KB Output is correct
36 Correct 14 ms 35640 KB Output is correct
37 Correct 10 ms 36432 KB Output is correct
38 Correct 16 ms 36300 KB Output is correct
39 Correct 25 ms 36300 KB Output is correct
40 Correct 19 ms 36300 KB Output is correct
41 Correct 11 ms 36300 KB Output is correct
42 Correct 36 ms 36024 KB Output is correct
43 Correct 21 ms 36024 KB Output is correct
44 Correct 22 ms 36032 KB Output is correct
45 Correct 45 ms 38340 KB Output is correct
46 Correct 27 ms 38336 KB Output is correct
47 Correct 48 ms 39864 KB Output is correct
48 Correct 59 ms 36696 KB Output is correct
49 Correct 46 ms 36564 KB Output is correct
50 Correct 48 ms 36432 KB Output is correct
51 Correct 81 ms 37356 KB Output is correct
52 Correct 70 ms 37356 KB Output is correct
53 Correct 61 ms 35640 KB Output is correct
54 Correct 57 ms 35508 KB Output is correct
55 Correct 62 ms 35508 KB Output is correct
56 Correct 65 ms 36564 KB Output is correct
57 Correct 51 ms 35640 KB Output is correct
58 Correct 60 ms 36016 KB Output is correct
59 Correct 57 ms 36016 KB Output is correct
60 Correct 64 ms 36380 KB Output is correct
61 Correct 69 ms 36216 KB Output is correct
62 Correct 95 ms 38016 KB Output is correct
63 Correct 146 ms 63320 KB Output is correct
64 Correct 145 ms 74508 KB Output is correct
65 Correct 191 ms 75924 KB Output is correct
66 Correct 338 ms 74144 KB Output is correct
67 Correct 238 ms 74124 KB Output is correct