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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. class Factorial
  5. {
  6.     int n,p=1,i;
  7.     public:
  8.     Factorial()
  9.     {
  10.         cout<<"Enter a number: ";
  11.         cin>>n;
  12.         for(i=2;i<=n;i++)
  13.             p*=i;
  14.  
  15.     }
  16.     void display()
  17.     {
  18.         cout<<"\nFactorial is: "<<p;
  19.     }
  20. };
  21.  
  22.  
  23. int main()
  24. {
  25.     Factorial obj;
  26.     obj.display();
  27.  
  28.     return 0;
  29. }
Success #stdin #stdout 0.01s 5284KB
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stdin
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Standard input is empty
stdout
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Enter a number: 
Factorial is: 0
https://ideone.com/IeWxa1
01.factorial using constructor
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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