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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	long long n, res = 0, x;
  6. 	cin >> n;
  7. 	for (int i = 0; i < n; i++) {
  8. 		cin >> x;
  9. 		res ^= x;
  10. 	}
  11. 	cout << res;
  12. 	return 0;
  13. }
Success #stdin #stdout 0s 15232KB
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Standard input is empty
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94679819917792
https://ideone.com/a7Lmkd
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

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