I need an Algorithm, not a Python or Java program.
Apply both brute force strategy as well as divide and conquer strategy to solve each given problem. In case any strategy can't be applied to any given part, justify. Using any built-in Python constructs (e.g. Python list slicing) for your pseudo-codes is not allowed. You can safely assume that elements are present in our list.
Take the product of 'n' integers given that we want our linear structure (list/array) to be divided into four parts instead of two parts at each recursive step. You need to change the base condition carefully.