Prashant Code | AI & ML Engineer on Instagram: "⏭️ Service-Based Companies Preparation 1. Arrays and Strings: Basics like finding duplicates, reversing arrays, and simple string manipulations. 2. Sorting and Searching: Selection sort, bubble sort, and binary search. 3. Linked Lists: Operations like insertion, deletion, and reversal. Example: Reverse a singly linked list. 4. Recursion Basics: Problems like factorial and Fibonacci sequence. 5. Mathematics-Based Problems: Prime numbers, GCD/LCM, an