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  1.  #include<iostream>
  2.  using namespace std;
  3.  long fact(int n)
  4.  {
  5.    if(n==0)
  6.        return 1;
  7.  
  8.    return (n*fact(n-1));
  9.  }
  10.  int main()
  11.  {
  12.    int num;
  13.     cout<<"Enter a positive integer: ";
  14.     cin>>num;
  15.  
  16.     cout<<"Factorial of "<<num<<" is "<<fact(num)<<endl;
  17.  
  18.      return 0;
  19.   }
Success #stdin #stdout 0s 3472KB
comments (?)
stdin 
2
stdout 
Enter a positive integer: Factorial of 2 is 2
https://ideone.com/Ppa3w1
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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