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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int n;
  6. 	cin>>n;
  7. 	vector<int> adjList[n];
  8. 	for(int i=0;i<n-1;i++){
  9. 		int x,y;
  10. 		cin>>x>>y;
  11. 		adjList[x].push_back(y);
  12. 		adjList[y].push_back(x);
  13. 	}
  14. 	for(int i=0;i<n;i++){
  15. 		if(adjList[i].size()<=2){
  16. 			cout<<i<<" ";
  17. 		}
  18. 	}
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 5332KB
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https://ideone.com/duhulh
language:
C++ (gcc 8.3)
created:
49 minutes ago
visibility:
public

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