fork download 
  1. #include <iostream>
  2.  
  3.  
  4. auto factorial(int x)
  5. {
  6.     auto recursiveFunction = [](auto recFunc, int n) -> int
  7.     {
  8.         if (n <= 1) return 1;
  9.         else return n * recFunc(recFunc, n-1);
  10.     };
  11.     return recursiveFunction(recursiveFunction, x);
  12. }
  13.  
  14. int main() {
  15. 	std::cout << factorial(4) << std::endl;
  16. }
Success #stdin #stdout 0s 4444KB
comments (?)
stdin 
Standard input is empty
stdout 
24
https://ideone.com/6DA737
language:
C++14 (gcc 8.3)
created:
6 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!