oj.uz

Submission #866893

# Submission time Handle Problem Language Result Execution time Memory
866893 2023-10-27T09:44:37 Z 1075508020060209tc Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
 72 ms 9936 KB 
#pragma GCC optimize ("O3")
#include<bits/stdc++.h>
using namespace std;
//#define int long long
int n;int m;
int dis[30100];
vector<int>e[30100];
set<int>st[30100];
int vis[30100];
int ar[30100];
int br[30100];
int frm[30100];
signed main(){
cin.tie(0);
ios_base::sync_with_stdio(0);
cin>>n>>m;
for(int i=0;i<m;i++){
    cin>>ar[i]>>br[i];
    st[ar[i]].insert(br[i]);
//    e[ar[i]].push_back(br[i]);
}
for(int i=0;i<n;i++){
    for(auto it=st[i].begin();it!=st[i].end();it++){
        e[i].push_back(*it);
    }
}

for(int i=0;i<n;i++){
    dis[i]=2000000000;
}
dis[ar[0]]=0;

priority_queue<pair<int,int>,vector<pair<int,int>>,greater<pair<int,int>>>pq;
pq.push({0,ar[0]});

while(pq.size()){
    int nw=pq.top().second;
    pq.pop();
    if(vis[nw]){continue;}
    vis[nw]=1;
//    lft.erase(nw);
    if(nw==ar[1]){
        cout<<dis[nw]<<"\n";return 0;
    }
    for(int i=0;i<e[nw].size();i++){
        int d=e[nw][i];
        if(d==frm[nw]){continue;}
        int v=nw+d;int t=1;
        for(;v<n;){
            //int v=nw+t*d;
//            dis[v]=min(dis[v],dis[nw]+t);
            if(dis[v]>dis[nw]+t){
                dis[v]=dis[nw]+t;
                frm[v]=d;
                pq.push({dis[v],v});
            }

            v+=d;t++;
        }
        v=nw-d;t=1;
        for(;v>=0;){
            if(dis[v]>dis[nw]+t){
                dis[v]=dis[nw]+t;
                frm[v]=d;
                pq.push({dis[v],v});
            }
            v-=d;t++;
        }
    }
}
if(dis[ar[1]]>1000000000){
    cout<<-1<<endl;
    return 0;
}
cout<<dis[ar[1]]<<endl;

}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:45:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |     for(int i=0;i<e[nw].size();i++){
      |                 ~^~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2648 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2648 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2648 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2908 KB Output is correct
11 Correct 1 ms 2908 KB Output is correct
12 Correct 1 ms 2908 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2908 KB Output is correct
15 Correct 1 ms 2908 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2676 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 3160 KB Output is correct
11 Correct 1 ms 2908 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2908 KB Output is correct
15 Correct 1 ms 2908 KB Output is correct
16 Correct 1 ms 2908 KB Output is correct
17 Correct 1 ms 2908 KB Output is correct
18 Correct 1 ms 2908 KB Output is correct
19 Correct 1 ms 2908 KB Output is correct
20 Correct 1 ms 2908 KB Output is correct
21 Correct 1 ms 2908 KB Output is correct
22 Correct 1 ms 2908 KB Output is correct
23 Correct 1 ms 2908 KB Output is correct
24 Correct 2 ms 2908 KB Output is correct
25 Correct 1 ms 2908 KB Output is correct
26 Correct 1 ms 2908 KB Output is correct
27 Correct 1 ms 2904 KB Output is correct
28 Correct 1 ms 2908 KB Output is correct
29 Correct 2 ms 3164 KB Output is correct
30 Correct 1 ms 2908 KB Output is correct
31 Correct 2 ms 2908 KB Output is correct
32 Correct 2 ms 2904 KB Output is correct
33 Correct 4 ms 3296 KB Output is correct
34 Correct 2 ms 3296 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2848 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2908 KB Output is correct
11 Correct 1 ms 2908 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 1 ms 2908 KB Output is correct
15 Correct 1 ms 2908 KB Output is correct
16 Correct 1 ms 2908 KB Output is correct
17 Correct 1 ms 2956 KB Output is correct
18 Correct 1 ms 2908 KB Output is correct
19 Correct 1 ms 2908 KB Output is correct
20 Correct 1 ms 2940 KB Output is correct
21 Correct 2 ms 2908 KB Output is correct
22 Correct 1 ms 2904 KB Output is correct
23 Correct 1 ms 2908 KB Output is correct
24 Correct 1 ms 2908 KB Output is correct
25 Correct 1 ms 2908 KB Output is correct
26 Correct 1 ms 2908 KB Output is correct
27 Correct 1 ms 2908 KB Output is correct
28 Correct 1 ms 2908 KB Output is correct
29 Correct 2 ms 3164 KB Output is correct
30 Correct 1 ms 2908 KB Output is correct
31 Correct 2 ms 2908 KB Output is correct
32 Correct 1 ms 2908 KB Output is correct
33 Correct 3 ms 3296 KB Output is correct
34 Correct 2 ms 3296 KB Output is correct
35 Correct 8 ms 4208 KB Output is correct
36 Correct 2 ms 3164 KB Output is correct
37 Correct 6 ms 3972 KB Output is correct
38 Correct 9 ms 4668 KB Output is correct
39 Correct 8 ms 4568 KB Output is correct
40 Correct 8 ms 4444 KB Output is correct
41 Correct 8 ms 4524 KB Output is correct
42 Correct 4 ms 3160 KB Output is correct
43 Correct 4 ms 2960 KB Output is correct
44 Correct 4 ms 2908 KB Output is correct
45 Correct 12 ms 4700 KB Output is correct
46 Correct 11 ms 4700 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2648 KB Output is correct
2 Correct 1 ms 2652 KB Output is correct
3 Correct 1 ms 2848 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2908 KB Output is correct
11 Correct 1 ms 2908 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 1 ms 2652 KB Output is correct
14 Correct 2 ms 3160 KB Output is correct
15 Correct 1 ms 2980 KB Output is correct
16 Correct 1 ms 2908 KB Output is correct
17 Correct 1 ms 2908 KB Output is correct
18 Correct 1 ms 2908 KB Output is correct
19 Correct 1 ms 2904 KB Output is correct
20 Correct 1 ms 2908 KB Output is correct
21 Correct 1 ms 2908 KB Output is correct
22 Correct 1 ms 2908 KB Output is correct
23 Correct 1 ms 2908 KB Output is correct
24 Correct 2 ms 2908 KB Output is correct
25 Correct 1 ms 2908 KB Output is correct
26 Correct 1 ms 2908 KB Output is correct
27 Correct 1 ms 2908 KB Output is correct
28 Correct 1 ms 2908 KB Output is correct
29 Correct 2 ms 3164 KB Output is correct
30 Correct 1 ms 2908 KB Output is correct
31 Correct 2 ms 2908 KB Output is correct
32 Correct 1 ms 2908 KB Output is correct
33 Correct 3 ms 3296 KB Output is correct
34 Correct 2 ms 3400 KB Output is correct
35 Correct 11 ms 4340 KB Output is correct
36 Correct 2 ms 3164 KB Output is correct
37 Correct 6 ms 3932 KB Output is correct
38 Correct 8 ms 4444 KB Output is correct
39 Correct 8 ms 4488 KB Output is correct
40 Correct 8 ms 4444 KB Output is correct
41 Correct 8 ms 4532 KB Output is correct
42 Correct 4 ms 2904 KB Output is correct
43 Correct 4 ms 2908 KB Output is correct
44 Correct 4 ms 2908 KB Output is correct
45 Correct 11 ms 4792 KB Output is correct
46 Correct 11 ms 4828 KB Output is correct
47 Correct 8 ms 5080 KB Output is correct
48 Correct 6 ms 4440 KB Output is correct
49 Correct 6 ms 4444 KB Output is correct
50 Correct 4 ms 3932 KB Output is correct
51 Correct 13 ms 6104 KB Output is correct
52 Correct 13 ms 6008 KB Output is correct
53 Correct 9 ms 5720 KB Output is correct
54 Correct 2 ms 3164 KB Output is correct
55 Correct 2 ms 3164 KB Output is correct
56 Correct 9 ms 6052 KB Output is correct
57 Correct 2 ms 3800 KB Output is correct
58 Correct 5 ms 3316 KB Output is correct
59 Correct 6 ms 3416 KB Output is correct
60 Correct 5 ms 3420 KB Output is correct
61 Correct 6 ms 3676 KB Output is correct
62 Correct 8 ms 5724 KB Output is correct
63 Correct 29 ms 7104 KB Output is correct
64 Correct 34 ms 7380 KB Output is correct
65 Correct 36 ms 7128 KB Output is correct
66 Correct 72 ms 9684 KB Output is correct
67 Correct 42 ms 9936 KB Output is correct