fork(2) download 
  1. #include <iostream>
  2. #include <functional>
  3. using namespace std;
  4.  
  5. std::function<int(int)> f;
  6.  
  7. int main() {
  8. 	// your code goes here
  9.  
  10. 	f = [](int a) { if (a==0) return 1; else return a*f(a-1); };
  11.  
  12. 	int a = f(3);
  13.  
  14. 	std::cout << "a: " << a << std::endl;
  15. 	return 0;
  16. }
Success #stdin #stdout 0s 3428KB
comments (?)
stdin 
Standard input is empty
stdout 
a: 6
https://ideone.com/6hwVGy
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!