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- #include<bits/stdc++.h>
- using namespace std;
- #define M 100000
- vector<int>adj[M];
- bool visited[M];
- void dfs(int v)
- {
- visited[v]=true;
- for(int i=0;i<adj[v].size();i++)
- {
- int k=adj[v][i];
- if(visited[k]==false)
- dfs(k);
- }
- }
- int main()
- {
- int n;
- cin>>n;
- dfs(int n);
- return 0;
- }
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