oj.uz

Submission #678597

# Submission time Handle Problem Language Result Execution time Memory
678597 2023-01-06T08:16:26 Z qwerasdfzxcl Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 1000 ms 2088 KB 
#include <bits/stdc++.h>

typedef long long ll;
using namespace std;
constexpr int INF = 1e9+100;
int dist[30030], visited[30030];
vector<int> a[30030];

int main(){
    int n, m, s, e;
    scanf("%d %d", &n, &m);
    for (int i=1;i<=m;i++){
        int x, p;
        scanf("%d %d", &x, &p);
        ++x;

        a[x].push_back(p);

        if (i==1) s = x;
        if (i==2) e = x;
    }

    fill(dist+1, dist+n+1, INF);
    fill(visited+1, visited+n+1, 0);
    dist[s] = 0;
    for (int i=1;i<=n;i++){
        sort(a[i].begin(), a[i].end());
        a[i].erase(unique(a[i].begin(), a[i].end()), a[i].end());
    }

    for (int z=1;z<=n;z++){
        int mn = INF, idx = -1;
        for (int i=1;i<=n;i++) if (!visited[i] && mn > dist[i]){
            mn = dist[i];
            idx = i;
        }
        if (idx==-1) break;
        visited[idx] = 1;

        for (auto &p:a[idx]){
            for (int i=idx-p, j=1;i>0;i-=p, j++) dist[i] = min(dist[i], dist[idx] + j);
            for (int i=idx+p, j=1;i<=n;i+=p, j++) dist[i] = min(dist[i], dist[idx] + j);
        }
    }

    if (dist[e]==INF) printf("-1\n");
    else printf("%d\n", dist[e]);
    return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf("%d %d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~
skyscraper.cpp:14:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         scanf("%d %d", &x, &p);
      |         ~~~~~^~~~~~~~~~~~~~~~~
skyscraper.cpp:46:15: warning: 'e' may be used uninitialized in this function [-Wmaybe-uninitialized]
   46 |     if (dist[e]==INF) printf("-1\n");
      |         ~~~~~~^
skyscraper.cpp:25:13: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
   25 |     dist[s] = 0;
      |     ~~~~~~~~^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1016 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 1012 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 1012 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 1012 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 980 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 1 ms 1020 KB Output is correct
15 Correct 1 ms 980 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 1020 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 1016 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 980 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 1 ms 1024 KB Output is correct
14 Correct 1 ms 980 KB Output is correct
15 Correct 1 ms 1028 KB Output is correct
16 Correct 1 ms 1020 KB Output is correct
17 Correct 2 ms 980 KB Output is correct
18 Correct 1 ms 1028 KB Output is correct
19 Correct 1 ms 980 KB Output is correct
20 Correct 17 ms 1108 KB Output is correct
21 Correct 1 ms 980 KB Output is correct
22 Correct 1 ms 1020 KB Output is correct
23 Correct 7 ms 980 KB Output is correct
24 Correct 11 ms 980 KB Output is correct
25 Correct 10 ms 1092 KB Output is correct
26 Correct 7 ms 1028 KB Output is correct
27 Correct 6 ms 980 KB Output is correct
28 Correct 7 ms 1108 KB Output is correct
29 Correct 4 ms 1020 KB Output is correct
30 Correct 4 ms 980 KB Output is correct
31 Correct 5 ms 980 KB Output is correct
32 Correct 5 ms 980 KB Output is correct
33 Correct 5 ms 980 KB Output is correct
34 Correct 5 ms 980 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1016 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 1016 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 980 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 1 ms 980 KB Output is correct
15 Correct 1 ms 980 KB Output is correct
16 Correct 1 ms 980 KB Output is correct
17 Correct 3 ms 980 KB Output is correct
18 Correct 1 ms 980 KB Output is correct
19 Correct 1 ms 1020 KB Output is correct
20 Correct 17 ms 1116 KB Output is correct
21 Correct 2 ms 1028 KB Output is correct
22 Correct 1 ms 980 KB Output is correct
23 Correct 7 ms 980 KB Output is correct
24 Correct 9 ms 1032 KB Output is correct
25 Correct 10 ms 1064 KB Output is correct
26 Correct 5 ms 980 KB Output is correct
27 Correct 6 ms 980 KB Output is correct
28 Correct 7 ms 1108 KB Output is correct
29 Correct 4 ms 980 KB Output is correct
30 Correct 4 ms 1016 KB Output is correct
31 Correct 5 ms 1048 KB Output is correct
32 Correct 5 ms 1080 KB Output is correct
33 Correct 5 ms 1024 KB Output is correct
34 Correct 4 ms 1020 KB Output is correct
35 Correct 11 ms 1412 KB Output is correct
36 Correct 4 ms 1108 KB Output is correct
37 Correct 12 ms 1364 KB Output is correct
38 Correct 14 ms 1536 KB Output is correct
39 Correct 15 ms 1536 KB Output is correct
40 Correct 15 ms 1544 KB Output is correct
41 Correct 15 ms 1492 KB Output is correct
42 Correct 9 ms 1408 KB Output is correct
43 Correct 10 ms 1492 KB Output is correct
44 Correct 22 ms 1468 KB Output is correct
45 Correct 11 ms 1412 KB Output is correct
46 Correct 11 ms 1332 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 1016 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 1008 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 1016 KB Output is correct
11 Correct 1 ms 980 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 1 ms 980 KB Output is correct
15 Correct 2 ms 984 KB Output is correct
16 Correct 1 ms 984 KB Output is correct
17 Correct 2 ms 984 KB Output is correct
18 Correct 1 ms 980 KB Output is correct
19 Correct 1 ms 980 KB Output is correct
20 Correct 17 ms 1112 KB Output is correct
21 Correct 1 ms 980 KB Output is correct
22 Correct 1 ms 980 KB Output is correct
23 Correct 7 ms 980 KB Output is correct
24 Correct 9 ms 1092 KB Output is correct
25 Correct 10 ms 980 KB Output is correct
26 Correct 6 ms 1028 KB Output is correct
27 Correct 6 ms 1068 KB Output is correct
28 Correct 9 ms 1028 KB Output is correct
29 Correct 5 ms 1016 KB Output is correct
30 Correct 5 ms 980 KB Output is correct
31 Correct 5 ms 980 KB Output is correct
32 Correct 4 ms 980 KB Output is correct
33 Correct 5 ms 980 KB Output is correct
34 Correct 4 ms 1020 KB Output is correct
35 Correct 11 ms 1364 KB Output is correct
36 Correct 4 ms 1032 KB Output is correct
37 Correct 12 ms 1364 KB Output is correct
38 Correct 16 ms 1612 KB Output is correct
39 Correct 16 ms 1536 KB Output is correct
40 Correct 15 ms 1492 KB Output is correct
41 Correct 15 ms 1492 KB Output is correct
42 Correct 10 ms 1492 KB Output is correct
43 Correct 17 ms 1416 KB Output is correct
44 Correct 20 ms 1364 KB Output is correct
45 Correct 11 ms 1364 KB Output is correct
46 Correct 11 ms 1392 KB Output is correct
47 Correct 422 ms 1668 KB Output is correct
48 Correct 7 ms 1876 KB Output is correct
49 Correct 9 ms 1876 KB Output is correct
50 Correct 8 ms 1668 KB Output is correct
51 Execution timed out 1087 ms 2088 KB Time limit exceeded
52 Halted 0 ms 0 KB -