#include <bits/stdc++.h>
using namespace std;
vector<int>v[100];
bool visited[100];
int node,edge;
void DFS(int n)
{
visited[n]=true;
cout<<n<<" ";
int temp;
for(int i=0; i<v[n].size(); i++)
{
temp=v[n][i];
if(!visited[temp])
DFS(temp);
}
}
int main()
{
cin>>node>>edge;
for(int i=0; i<edge; i++)
{
int x,y;
cin>>x>>y;
v[x].push_back(y);
v[y].push_back(x);
}
int src,dst;
cin>>src>>dst;
memset(visited,0,sizeof visited);
cout<<"DFS traverse order is = ";
DFS(src);
cout<<endl;
if(visited[dst])
cout<<dst<<" is reachable from "<<src<<endl;
else
cout<<dst<<" is not reachable from "<<src<<endl;
return 0;
}
using namespace std;
vector<int>v[100];
bool visited[100];
int node,edge;
void DFS(int n)
{
visited[n]=true;
cout<<n<<" ";
int temp;
for(int i=0; i<v[n].size(); i++)
{
temp=v[n][i];
if(!visited[temp])
DFS(temp);
}
}
int main()
{
cin>>node>>edge;
for(int i=0; i<edge; i++)
{
int x,y;
cin>>x>>y;
v[x].push_back(y);
v[y].push_back(x);
}
int src,dst;
cin>>src>>dst;
memset(visited,0,sizeof visited);
cout<<"DFS traverse order is = ";
DFS(src);
cout<<endl;
if(visited[dst])
cout<<dst<<" is reachable from "<<src<<endl;
else
cout<<dst<<" is not reachable from "<<src<<endl;
return 0;
}
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