Harness interview questions

Explain the concept of time complexity and space complexity. What is a hash table (hash map), and when would you use it? Describe the difference between an array and a linked list. Implement a binary search algorithm. Explain the process of traversing a binary tree using in-order traversal. Problem Solving: Given an array of integers, find the two numbers that add up to a specific target sum. Reverse a string without using built-in functions. Implement a function to check if a string is a palindrome. Determine whether a given string is an anagram of another string. Write a function to find the factorial of a non-negative integer. Object-Oriented Programming (OOP): Explain the concepts of encapsulation, inheritance, and polymorphism. What is the difference between an abstract class and an interface? Implement a simple class in a programming language of your choice. Describe the SOLID principles in software design.