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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int n, m, k, num;
  6. 	cin >> n >> m >> k;
  7. 	bool children[n];
  8. 	for (int i = 0; i < n; i++) {
  9. 		children[i] = false;
  10. 	}
  11. 	for (int i = 0; i < m + k; i++) {
  12. 		cin >> num;
  13. 		num--;
  14. 		children[num] = true;
  15. 	}
  16. 	cout << (n - m - k) << "\n";
  17. 	for (int i = 0; i < n; i++) {
  18. 		if (!children[i]) {
  19. 			cout << (i + 1) << " ";
  20. 		}
  21. 	}
  22. 	return 0;
  23. }
Success #stdin #stdout 0s 4384KB
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7 2 1
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stdout
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4
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https://ideone.com/hiw398
Санта Клаус
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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