Program of a recursive function

#include<stdio.h> #include<conio.h> #include<iostream.h> class factorial { int a; public: void get() { long int fact=0; cout<<"Enter number whom you want factorial : "; cin>>a; fact=cal_fact(a); cout<<endl<<"Factorial of "<<a<<" is "<<fact; } long int cal_fact(long int a) { if(a==0||a==1) return 1; else return a*cal_fact(a-1); } }; void main() { clrscr(); factorial f; f.get(); getch(); }