Simplify Absolute Unix File Path with Current Directory

meta Given an absolute Unix file path and a current working directory cwd, return the simplified path after removing redundant .s, ..s, and //. Examples: Input: path = "/home/", cwd = "/usr", Output: "/home" Input: path = "/a/./b/../../c/", cwd = "/usr/local", Output: "/c" Input: path = "/../", cwd = "/usr/local", Output: "/" Requirements: Time complexity: O(n), where n is the length of the path. Input Description: A string path representing the Unix file path to simplify. A string cwd representing the current working directory. Output Description: Return the simplified path without redundant components. Note: The input path is always an absolute path and does not begin with ~. Example Input /home/\n/usr