Reddit Hard Interview Questions

Category: String coding problemYou are building a scoring system for competitive ping-pong matches. Points are awarded one at a time to a player, and the score must be tracked...Input: String
Output: Computed result

Category: Trie-based coding problemYou are designing a system that tracks administrator privileges for an online platform using a time-ordered log of administration actions. Each log...Input: List
Output: Computed result

Category: Graph coding problemA company's expense tracking database was lost. Fortunately, a complete historical log of all financial transactions was retained. Your task is to...Input: Graph (nodes and edges)
Output: Computed result

Category: Trie-based coding problemA document review application maintains a history of entries where each entry is identified by a unique, strictly increasing integer id and...Input: List
Output: Array

Category: Tree coding problemA company's reporting structure is described as a list relationships, where each element is a list of strings. The first string represents a...Input: Array of strings
Output: Array

Category: Trie-based system design problem# System Design Questions - Reddit These are the most commonly asked system design questions from Reddit interviews.Input: Number(s)
Output: Computed result