JPM Consulting interview questions

The first step was an online coding round hosted on [HackerRank / Codility / company’s own portal]. Duration: 90 minutes Questions: 3 Topics covered: Data Structures & Algorithms – Implement LRU Cache (focus on O(1) operations using LinkedHashMap or custom doubly linked list + hashmap). String Manipulation – Find the smallest substring containing all characters of another string (Sliding Window technique).