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  1. #include <iostream>
  2. using namespace std;
  3. int giaithua(long long n){
  4. 	if(n == 0 || n == 1){
  5. 		return 1;
  6. 	}
  7. 	return n*giaithua(n-1);
  8. }
  9. int main() {
  10. 	long long n;
  11. 	cin >> n;
  12. 	cout << giaithua(n) << endl;
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 5312KB
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https://ideone.com/8rWdJg
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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