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  1. #include <iostream>
  2. using namespace std;
  3. int factorial(int n)
  4. {
  5. 	if(n==1||n==0) return 1;
  6. 	else return n*factorial(n-1);
  7. }
  8. int main() {
  9. 	cout<<"please enter a number: ";
  10. 	int n;
  11. 	cin>>n;
  12. 	cout<<n<<"'s factorial is "<<factorial(n)<<endl;
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 15232KB
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stdin
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5
stdout
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please enter a number: 5's factorial is 120
https://ideone.com/KQVVvx
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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