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Submission #520872

# Submission time Handle Problem Language Result Execution time Memory
520872 2022-01-31T10:32:23 Z knon0501 Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 2052 KB 
#include <bits/stdc++.h>
using namespace std;
const int INF=1e9;
int dist[30005];
int vis[30005];

vector<int> a[30005];
int n,m;
int main(){
    //freopen("input.txt","r",stdin);
    cin.tie(0);
    ios_base::sync_with_stdio(0);
    cin>>n>>m;
    int t;
    int k;
    for(int i=0 ; i<m ;i++){
        
        int x,y;
        cin>>x>>y;
        if(i==0)k=x;
        if(i==1)t=x;
        a[x].emplace_back(y);
    }
    for(int i=0 ; i<n ; i++)dist[i]=INF;
    dist[k]=0;

    for(int i=0 ; i<n ; i++){
        int v=-1;
        for(int j=0 ; j<n ; j++){
            if(vis[j]==0)
                if(v==-1 || dist[j]<dist[v])
                {
                    v=j;
                }
        }
        if(dist[v]==INF){
            cout<<-1;
            return 0;
        }
        if(v==t){
            cout<<dist[v]<<"\n";
            return 0;
        }
        vis[v]=1;
        
        for(auto &x: a[v]){
            int cnt=0;
            for(int j=v+x; j<n ; j+=x)
                dist[j]=min(dist[j],dist[v]+(++cnt));
            cnt=0;
            for(int j=v-x ; j>=0 ; j-=x)
                dist[j]=min(dist[j],dist[v]+(++cnt));
        }
    }
    if(dist[t]==INF)
        cout<<-1;
    else
      cout<<dist[t];
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:25:12: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
   25 |     dist[k]=0;
      |     ~~~~~~~^~
skyscraper.cpp:40:9: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
   40 |         if(v==t){
      |         ^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 1028 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 1100 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 1032 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 972 KB Output is correct
11 Correct 1 ms 972 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 2 ms 1028 KB Output is correct
14 Correct 1 ms 972 KB Output is correct
15 Correct 1 ms 972 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 1028 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 972 KB Output is correct
11 Correct 1 ms 1032 KB Output is correct
12 Correct 1 ms 1036 KB Output is correct
13 Correct 2 ms 972 KB Output is correct
14 Correct 1 ms 972 KB Output is correct
15 Correct 1 ms 972 KB Output is correct
16 Correct 1 ms 972 KB Output is correct
17 Correct 2 ms 1040 KB Output is correct
18 Correct 1 ms 972 KB Output is correct
19 Correct 1 ms 972 KB Output is correct
20 Correct 20 ms 1100 KB Output is correct
21 Correct 1 ms 1024 KB Output is correct
22 Correct 1 ms 972 KB Output is correct
23 Correct 6 ms 1040 KB Output is correct
24 Correct 8 ms 1104 KB Output is correct
25 Correct 4 ms 1100 KB Output is correct
26 Correct 7 ms 972 KB Output is correct
27 Correct 7 ms 1036 KB Output is correct
28 Correct 9 ms 1100 KB Output is correct
29 Correct 8 ms 1032 KB Output is correct
30 Correct 8 ms 1028 KB Output is correct
31 Correct 8 ms 972 KB Output is correct
32 Correct 8 ms 972 KB Output is correct
33 Correct 9 ms 1036 KB Output is correct
34 Correct 9 ms 972 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 972 KB Output is correct
11 Correct 1 ms 1048 KB Output is correct
12 Correct 1 ms 1036 KB Output is correct
13 Correct 2 ms 972 KB Output is correct
14 Correct 1 ms 972 KB Output is correct
15 Correct 1 ms 1036 KB Output is correct
16 Correct 1 ms 1032 KB Output is correct
17 Correct 2 ms 1036 KB Output is correct
18 Correct 1 ms 972 KB Output is correct
19 Correct 1 ms 972 KB Output is correct
20 Correct 21 ms 1028 KB Output is correct
21 Correct 1 ms 972 KB Output is correct
22 Correct 1 ms 972 KB Output is correct
23 Correct 6 ms 1032 KB Output is correct
24 Correct 7 ms 1100 KB Output is correct
25 Correct 3 ms 1064 KB Output is correct
26 Correct 7 ms 1044 KB Output is correct
27 Correct 9 ms 1100 KB Output is correct
28 Correct 9 ms 1100 KB Output is correct
29 Correct 9 ms 972 KB Output is correct
30 Correct 8 ms 1024 KB Output is correct
31 Correct 8 ms 1052 KB Output is correct
32 Correct 8 ms 1100 KB Output is correct
33 Correct 8 ms 1040 KB Output is correct
34 Correct 8 ms 972 KB Output is correct
35 Correct 9 ms 1416 KB Output is correct
36 Correct 2 ms 1100 KB Output is correct
37 Correct 10 ms 1356 KB Output is correct
38 Correct 9 ms 1412 KB Output is correct
39 Correct 8 ms 1424 KB Output is correct
40 Correct 7 ms 1512 KB Output is correct
41 Correct 11 ms 1580 KB Output is correct
42 Correct 13 ms 1484 KB Output is correct
43 Correct 11 ms 1484 KB Output is correct
44 Correct 207 ms 1468 KB Output is correct
45 Correct 13 ms 1348 KB Output is correct
46 Correct 13 ms 1464 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1028 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 1028 KB Output is correct
6 Correct 1 ms 1100 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 1024 KB Output is correct
10 Correct 1 ms 1032 KB Output is correct
11 Correct 1 ms 972 KB Output is correct
12 Correct 1 ms 1040 KB Output is correct
13 Correct 2 ms 972 KB Output is correct
14 Correct 1 ms 972 KB Output is correct
15 Correct 1 ms 1036 KB Output is correct
16 Correct 1 ms 1036 KB Output is correct
17 Correct 2 ms 972 KB Output is correct
18 Correct 1 ms 972 KB Output is correct
19 Correct 2 ms 972 KB Output is correct
20 Correct 20 ms 1124 KB Output is correct
21 Correct 1 ms 972 KB Output is correct
22 Correct 1 ms 972 KB Output is correct
23 Correct 5 ms 972 KB Output is correct
24 Correct 8 ms 1100 KB Output is correct
25 Correct 3 ms 1100 KB Output is correct
26 Correct 7 ms 1080 KB Output is correct
27 Correct 8 ms 1076 KB Output is correct
28 Correct 11 ms 1100 KB Output is correct
29 Correct 8 ms 1032 KB Output is correct
30 Correct 8 ms 972 KB Output is correct
31 Correct 8 ms 1024 KB Output is correct
32 Correct 8 ms 972 KB Output is correct
33 Correct 8 ms 1040 KB Output is correct
34 Correct 8 ms 972 KB Output is correct
35 Correct 9 ms 1424 KB Output is correct
36 Correct 3 ms 1100 KB Output is correct
37 Correct 10 ms 1356 KB Output is correct
38 Correct 9 ms 1420 KB Output is correct
39 Correct 9 ms 1404 KB Output is correct
40 Correct 9 ms 1484 KB Output is correct
41 Correct 8 ms 1456 KB Output is correct
42 Correct 10 ms 1408 KB Output is correct
43 Correct 11 ms 1484 KB Output is correct
44 Correct 203 ms 1480 KB Output is correct
45 Correct 13 ms 1356 KB Output is correct
46 Correct 15 ms 1356 KB Output is correct
47 Correct 163 ms 1688 KB Output is correct
48 Correct 6 ms 1740 KB Output is correct
49 Correct 8 ms 1740 KB Output is correct
50 Correct 5 ms 1612 KB Output is correct
51 Execution timed out 1085 ms 2052 KB Time limit exceeded
52 Halted 0 ms 0 KB -