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C++ recursion program: Factorial

C++ recursion program: Factorial

#include <iostream>
using namespace std;
//Factorial function
int f(int n){
   /* This is called the base condition, it is very important to specify the base condition in recursion, otherwise your program will throw stack overflow error.    */
   if (n <= 1)
        return 1;
   else 
       return n*f(n-1);
}
int main(){
   int number;
   cout<<"Enter a number: ";
   cin>>number;
   cout<<"Factorial of entered number: "<<f(number);
   return 0;
}

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