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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int t;
  6. 	cin>>t;
  7. 	while(t--){
  8. 		int n;
  9. 		cin>>n;
  10. 		int x=0;
  11. 		int y=0;
  12. 		int a,b;
  13. 		for(int i= 4*n-1 ;i>0;i--){
  14. 			cin>>a>>b;
  15. 			x^=a;
  16. 			y^=b;
  17. 		}
  18. 		cout<<x<<" "<<y<<endl;
  19. 	}
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 5500KB
comments (?)
stdin
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1
2
1 1
1 2
4 6
2 1
9 6
9 3
4 3
stdout
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2 2
https://ideone.com/gb5oKJ
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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