Netflix Coding & Algorithms Interview Questions
Practice the exact questions companies are asking right now.
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Compute Minimum Task Completion Time
You are given n tasks numbered from 0 to n - 1. Each task i takes durations[i] units of time to execute. You are also given a list of directed depende...
Solve String Arrays and Row Deduplication
You are given the following independent coding tasks. For each task, write clean production-quality code, handle edge cases, and state the time and sp...
Solve sliding-window and disjoint-string-pairs tasks
Task A (Sliding Window) Given a string s, find the length of the longest contiguous substring that contains no repeated characters. - Input: a string ...
Return the longest contiguous subarray with all distinct values
Given an array shows of integers, return the longest contiguous subarray in which all values are distinct (no repeats within the subarray). Function s...
Implement Caches, Undo, and Traversal
Solve the following coding tasks. For each task, define clean APIs, implement the core logic, and be prepared to explain time and space complexity. Ta...
Compute Earliest Completion Times
You are given n tasks numbered from 0 to n - 1. Each task i has a positive duration duration[i]. You are also given a list of prerequisite relationshi...
Implement a Versioned Key-Value Store
Design and implement an in-memory versioned key-value store. Requirements: - put(key, value, timestamp): store value for key at the given integer time...
Implement TTL Cache and Tree Balance Reporting
Complete both coding tasks. Task A: Time-limited cache Design and implement an in-memory cache where every key expires after a time-to-live duration. ...
Compute subtree sums with tree DFS
You are given an undirected tree with n nodes labeled 1..n and n-1 edges. The tree is rooted at node 1. Each node i has an integer value val[i]. Retur...
Return valid task order from prerequisites
You are given N tasks labeled 0..N-1 and a list of directed dependency pairs [(a,b), ...] meaning task a must be done before task b. 1) Return one val...
Implement phrase search and JSON path
The coding rounds included two concrete implementation tasks: 1. In-memory document phrase search - You are given a list of documents, each represe...
Implement rotating homepage title selector
Implement an in-memory service that chooses which movie or show title to display on a user's homepage billboard. Each title has a relevance score for ...
Find user pairs with overlapping last K movies
You are given the same user movie-watching histories as in the previous problem. Each user’s history is an ordered list of movie IDs from earliest to ...
Dedupe titles in per-shelf viewport
You are rendering a streaming app home page. - The home page consists of shelves displayed from top to bottom. - Each shelf contains a list of titleId...
Design playlist with add/remove/shuffle
Music Playlist Data Structure Design an in-memory Playlist data structure that supports the following operations on a set of songs: - add(songId): Add...
Compute minimum semesters to finish courses
You are given n courses labeled 1..n and a list of prerequisite relations prereq, where each element is a pair [a, b] meaning you must complete course...
Implement topological sort from string input
You receive N lines of raw text describing task dependencies, e.g., 'install A after B', 'C->A', 'B before D'. Implement a function that: ( 1) parses ...
Implement Streaming Word Counter
Implement a class that records word frequencies from a stream of text. The class should support the following operations: 1. add_text(text: str) -> No...
Solve non-repeating show substring
Question LeetCode 3. Longest Substring Without Repeating Characters – variant where the elements are show names instead of numbers. https://leetcode.c...
Implement a Weighted Eviction Cache
Design an in-memory cache whose capacity is limited by total weight rather than by the number of entries. Each entry has: - a key - a value - a positi...