63742023-11-26 10:11:28horvathabelUtazási irodacpp17Runtime error 12/45437ms126376 KiB
#include <bits/stdc++.h>
using namespace std;
int n,k;
vector<int> g[100001];
int cnt=0;
vector<bool> seen;
void dfs(int x,int k,string ans){
    ans+=to_string(x)+' ';
    cnt++;
    seen[x]=true;
    if (cnt==k){
        cout<<ans;
        return;
    }
    for (int edge:g[x]){
        if (!seen[edge]) dfs(edge,k,ans);
    }

}
int main()
{
    cin>>n>>k;
    seen.resize(n+1,false);
    for (int i=1; i<n;i++){
        int a,b;
        cin>>a>>b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    for (int i=1; i<=n;i++) sort(g[i].begin(), g[i].end());
    dfs(1,k,"");
    seen.clear();
    seen.resize(n+1,false);
    if(cnt<k){
        int z=k/cnt;
        if (k%cnt==0) z--;
        cnt*=z;
        z++;
        dfs(z,k,"");
    }
}
SubtaskSumTestVerdictTimeMemory
base12/45
1Accepted0/04ms6732 KiB
2Accepted0/017ms7964 KiB
3Accepted2/24ms7480 KiB
4Accepted2/24ms7648 KiB
5Accepted1/14ms7868 KiB
6Accepted2/26ms7920 KiB
7Accepted2/26ms7976 KiB
8Accepted1/114ms18972 KiB
9Runtime error0/24ms8060 KiB
10Runtime error0/24ms8336 KiB
11Runtime error0/14ms8308 KiB
12Runtime error0/24ms8596 KiB
13Runtime error0/24ms8816 KiB
14Runtime error0/24ms8880 KiB
15Runtime error0/24ms8904 KiB
16Runtime error0/24ms8796 KiB
17Runtime error0/34ms9088 KiB
18Runtime error0/24ms8944 KiB
19Accepted2/2437ms93812 KiB
20Runtime error0/24ms10216 KiB
21Runtime error0/34ms10360 KiB
22Runtime error0/34ms10704 KiB
23Runtime error0/34ms11072 KiB
24Runtime error0/1181ms126376 KiB
25Runtime error0/1157ms126140 KiB