# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
23205 | 2017-05-04T13:41:48 Z | iletavcioski | Network (BOI15_net) | C++14 | 656 ms | 30820 KB |
#include<iostream> #include<vector> using namespace std; vector<vector<int> > v; int brojac=0; vector<int> toc; void dfs(int x,int prev) { for(int i=0;i<v[x].size();i++) if(v[x][i]!=prev) dfs(v[x][i],x); if(v[x].size()==1) toc.push_back(x); } int main() { int n; cin>>n; vector<int> vec; v.insert(v.begin(),n+1,vec); if(n==1) { cout<<0<<endl; return 0; } for(int i=0;i<n-1;i++) { int a,b; cin>>a>>b; a--; b--; v[a].push_back(b); v[b].push_back(a); } brojac=0; for(int i=0;i<n;i++) { if(v[i].size()>1){ dfs(i,-1); break;} } cout<<(int)(toc.size()+1)/2<<endl; for(int i=0;i<(toc.size()+1)/2;i++) { cout<<toc[i]+1<<" "<<toc[i+(toc.size())/2]+1<<endl; } return 0; }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 2024 KB | Output is correct |
2 | Correct | 0 ms | 2024 KB | Output is correct |
3 | Correct | 0 ms | 2024 KB | Output is correct |
4 | Correct | 0 ms | 2024 KB | Output is correct |
5 | Correct | 0 ms | 2024 KB | Output is correct |
6 | Correct | 0 ms | 2024 KB | Output is correct |
7 | Correct | 0 ms | 2024 KB | Output is correct |
8 | Correct | 0 ms | 2024 KB | Output is correct |
9 | Correct | 0 ms | 2024 KB | Output is correct |
10 | Correct | 0 ms | 2024 KB | Output is correct |
11 | Correct | 0 ms | 2024 KB | Output is correct |
12 | Correct | 0 ms | 2024 KB | Output is correct |
13 | Correct | 0 ms | 2024 KB | Output is correct |
14 | Correct | 0 ms | 2024 KB | Output is correct |
15 | Correct | 0 ms | 2024 KB | Output is correct |
16 | Correct | 0 ms | 2024 KB | Output is correct |
17 | Correct | 0 ms | 2024 KB | Output is correct |
18 | Correct | 0 ms | 2024 KB | Output is correct |
19 | Correct | 0 ms | 2024 KB | Output is correct |
20 | Correct | 0 ms | 2024 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 2024 KB | Output is correct |
2 | Correct | 0 ms | 2024 KB | Output is correct |
3 | Correct | 0 ms | 2024 KB | Output is correct |
4 | Correct | 0 ms | 2024 KB | Output is correct |
5 | Correct | 0 ms | 2024 KB | Output is correct |
6 | Correct | 0 ms | 2024 KB | Output is correct |
7 | Correct | 0 ms | 2024 KB | Output is correct |
8 | Correct | 0 ms | 2024 KB | Output is correct |
9 | Correct | 0 ms | 2024 KB | Output is correct |
10 | Correct | 0 ms | 2024 KB | Output is correct |
11 | Correct | 0 ms | 2024 KB | Output is correct |
12 | Correct | 0 ms | 2024 KB | Output is correct |
13 | Correct | 0 ms | 2024 KB | Output is correct |
14 | Correct | 0 ms | 2024 KB | Output is correct |
15 | Correct | 0 ms | 2024 KB | Output is correct |
16 | Correct | 0 ms | 2024 KB | Output is correct |
17 | Correct | 0 ms | 2024 KB | Output is correct |
18 | Correct | 0 ms | 2024 KB | Output is correct |
19 | Correct | 0 ms | 2024 KB | Output is correct |
20 | Correct | 0 ms | 2024 KB | Output is correct |
21 | Correct | 0 ms | 2024 KB | Output is correct |
22 | Correct | 6 ms | 2156 KB | Output is correct |
23 | Correct | 3 ms | 2156 KB | Output is correct |
24 | Correct | 6 ms | 2156 KB | Output is correct |
25 | Correct | 3 ms | 2156 KB | Output is correct |
26 | Correct | 3 ms | 2156 KB | Output is correct |
27 | Correct | 9 ms | 2156 KB | Output is correct |
28 | Correct | 3 ms | 2156 KB | Output is correct |
29 | Correct | 3 ms | 2156 KB | Output is correct |
30 | Correct | 0 ms | 2024 KB | Output is correct |
31 | Correct | 3 ms | 2156 KB | Output is correct |
32 | Correct | 0 ms | 2024 KB | Output is correct |
33 | Correct | 0 ms | 2024 KB | Output is correct |
34 | Correct | 0 ms | 2024 KB | Output is correct |
35 | Correct | 0 ms | 2024 KB | Output is correct |
36 | Correct | 0 ms | 2024 KB | Output is correct |
37 | Correct | 0 ms | 2024 KB | Output is correct |
38 | Correct | 0 ms | 2156 KB | Output is correct |
39 | Correct | 0 ms | 2024 KB | Output is correct |
40 | Correct | 0 ms | 2024 KB | Output is correct |
41 | Correct | 0 ms | 2024 KB | Output is correct |
42 | Correct | 3 ms | 2024 KB | Output is correct |
43 | Correct | 3 ms | 2156 KB | Output is correct |
44 | Correct | 0 ms | 2024 KB | Output is correct |
45 | Correct | 0 ms | 2024 KB | Output is correct |
46 | Correct | 3 ms | 2156 KB | Output is correct |
47 | Correct | 0 ms | 2024 KB | Output is correct |
48 | Correct | 0 ms | 2024 KB | Output is correct |
49 | Correct | 3 ms | 2156 KB | Output is correct |
50 | Correct | 0 ms | 2024 KB | Output is correct |
51 | Correct | 0 ms | 2024 KB | Output is correct |
52 | Correct | 0 ms | 2024 KB | Output is correct |
53 | Correct | 0 ms | 2156 KB | Output is correct |
54 | Correct | 0 ms | 2024 KB | Output is correct |
55 | Correct | 0 ms | 2024 KB | Output is correct |
56 | Correct | 0 ms | 2024 KB | Output is correct |
57 | Correct | 3 ms | 2024 KB | Output is correct |
58 | Correct | 0 ms | 2156 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 2024 KB | Output is correct |
2 | Correct | 0 ms | 2024 KB | Output is correct |
3 | Correct | 0 ms | 2024 KB | Output is correct |
4 | Correct | 0 ms | 2024 KB | Output is correct |
5 | Correct | 0 ms | 2024 KB | Output is correct |
6 | Correct | 0 ms | 2024 KB | Output is correct |
7 | Correct | 0 ms | 2024 KB | Output is correct |
8 | Correct | 0 ms | 2024 KB | Output is correct |
9 | Correct | 0 ms | 2024 KB | Output is correct |
10 | Correct | 0 ms | 2024 KB | Output is correct |
11 | Correct | 0 ms | 2024 KB | Output is correct |
12 | Correct | 0 ms | 2024 KB | Output is correct |
13 | Correct | 0 ms | 2024 KB | Output is correct |
14 | Correct | 0 ms | 2024 KB | Output is correct |
15 | Correct | 0 ms | 2024 KB | Output is correct |
16 | Correct | 0 ms | 2024 KB | Output is correct |
17 | Correct | 0 ms | 2024 KB | Output is correct |
18 | Correct | 0 ms | 2024 KB | Output is correct |
19 | Correct | 0 ms | 2024 KB | Output is correct |
20 | Correct | 0 ms | 2024 KB | Output is correct |
21 | Correct | 0 ms | 2024 KB | Output is correct |
22 | Correct | 6 ms | 2156 KB | Output is correct |
23 | Correct | 3 ms | 2156 KB | Output is correct |
24 | Correct | 6 ms | 2156 KB | Output is correct |
25 | Correct | 3 ms | 2156 KB | Output is correct |
26 | Correct | 3 ms | 2156 KB | Output is correct |
27 | Correct | 9 ms | 2156 KB | Output is correct |
28 | Correct | 3 ms | 2156 KB | Output is correct |
29 | Correct | 3 ms | 2156 KB | Output is correct |
30 | Correct | 0 ms | 2024 KB | Output is correct |
31 | Correct | 3 ms | 2156 KB | Output is correct |
32 | Correct | 0 ms | 2024 KB | Output is correct |
33 | Correct | 0 ms | 2024 KB | Output is correct |
34 | Correct | 0 ms | 2024 KB | Output is correct |
35 | Correct | 0 ms | 2024 KB | Output is correct |
36 | Correct | 0 ms | 2024 KB | Output is correct |
37 | Correct | 0 ms | 2024 KB | Output is correct |
38 | Correct | 0 ms | 2156 KB | Output is correct |
39 | Correct | 0 ms | 2024 KB | Output is correct |
40 | Correct | 0 ms | 2024 KB | Output is correct |
41 | Correct | 0 ms | 2024 KB | Output is correct |
42 | Correct | 3 ms | 2024 KB | Output is correct |
43 | Correct | 3 ms | 2156 KB | Output is correct |
44 | Correct | 0 ms | 2024 KB | Output is correct |
45 | Correct | 0 ms | 2024 KB | Output is correct |
46 | Correct | 3 ms | 2156 KB | Output is correct |
47 | Correct | 0 ms | 2024 KB | Output is correct |
48 | Correct | 0 ms | 2024 KB | Output is correct |
49 | Correct | 3 ms | 2156 KB | Output is correct |
50 | Correct | 0 ms | 2024 KB | Output is correct |
51 | Correct | 0 ms | 2024 KB | Output is correct |
52 | Correct | 0 ms | 2024 KB | Output is correct |
53 | Correct | 0 ms | 2156 KB | Output is correct |
54 | Correct | 0 ms | 2024 KB | Output is correct |
55 | Correct | 0 ms | 2024 KB | Output is correct |
56 | Correct | 0 ms | 2024 KB | Output is correct |
57 | Correct | 3 ms | 2024 KB | Output is correct |
58 | Correct | 0 ms | 2156 KB | Output is correct |
59 | Runtime error | 656 ms | 30820 KB | Execution timed out (wall clock limit exceeded) |
60 | Halted | 0 ms | 0 KB | - |