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  1. #include <iostream>
  2. #include <vector>
  3.  
  4. using namespace std;
  5.  
  6. vector<int> cons[200020];
  7. int ut[200003];
  8.  
  9. int main() {
  10. 	int n,m;
  11. 	cin>>n>>m;
  12. 	for(int i=1;i<=n;i++){
  13. 		ut[i]=i;
  14. 	}
  15. 	for(int i=0;i<m;i++){
  16. 		int from,to;
  17. 		cin>>from>>to;
  18. 		cons[to].push_back(from);
  19. 	}
  20.  
  21. 	return 0;
  22. }
Success #stdin #stdout 0.01s 8176KB
comments (?)
stdin
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4 4
1 2
2 3
3 4
4 2
3
2 4
1 2
2 4
stdout
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Standard output is empty
https://ideone.com/9KWCY6
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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