Recursive Factorial Calculation with Caching

This function calculates the factorial of a non-negative integer using recursion and caching to optimize performance.

Technology Stack : Built-in functions (recursion, caching)

Code Type : Function

Code Difficulty : Intermediate

                
                    
def factorial(n, _cache={}):
    if n in _cache:
        return _cache[n]
    if n == 0 or n == 1:
        return 1
    _cache[n] = n * factorial(n - 1, _cache)
    return _cache[n]