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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5.  
  6. int main() {
  7. 	long n, k;
  8. 	cin >> n >> k;
  9. 	vector<vector<long>> graph(n);
  10.  
  11. 	for (long i = 0; i<k; i++){
  12. 		int index;
  13. 		cin >> index;
  14. 		if (index == 1){
  15. 			long v, u;
  16. 			cin >> v >> u;
  17. 			v--; u--;
  18. 			graph[v].push_back(u);
  19. 			graph[u].push_back(v);
  20. 		}
  21. 		else {
  22. 			long ver;
  23. 			cin >> ver;
  24. 			ver--;
  25. 			for (auto low : graph[ver]) cout << low + 1 << " ";
  26. 			cout << endl;
  27. 		}
  28. 	}
  29. }
Success #stdin #stdout 0s 5520KB
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https://ideone.com/J9PPZ5
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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