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  1. #include <iostream>
  2. using namespace std;
  3. void helper(int n){
  4. 	if(n == 0)return;
  5. 	cout<<n<<"down  "<<endl;
  6. 	helper(n-1);
  7. 	cout<<n<< "up  "<<endl;
  8. }
  9. int main() {
  10. 	int n;
  11. 	cin>>n;
  12. 	helper(n);
  13. 	return 0;
  14. }
Success #stdin #stdout 0.01s 5312KB
comments (?)
stdin
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5
stdout
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5down  
4down  
3down  
2down  
1down  
1up  
2up  
3up  
4up  
5up
https://ideone.com/ChcHWl
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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