Tag: Exponential

Dynamic Programming Longest Common Subsequence

Longest Common Subsequence Welcome to the 4th article on Dynamic Programming. You can refer to the first article (introduction) here. I will be using the shortcut LCS to refer to longest common sub-sequence. Let us get started. Introduction One of the applications of "Longest Common Subsequence" problem is comparing DNA strings to see how similar

Recursive Exponential Function

Problem Write a recursive function to compute (x) to the power of (n) where (x) and (n) are positive integers. Your algorithm should run in O(logn) time complexity Solution Use divide and conquer technique. For even values of (n) calculate x^(n/2) and return the square of that as the final result because x^n = x^(n/2)