Method factorial

Recursion/Homework/factorial.cpp:6–19

class Solution{
public:
    long long int factorial(int N){
       // Base Case
       if (N == 1 || N == 0){
           return 1;
       }
       
       // Recursive Call
       long long int recResult = factorial(N-1);
      
       // Small Calculation 
       long long int result = N*recResult;
       
       return result;
    }
};

int main()