Airbnb

Add Two Numbers

Also asked at Amazon, Google +1

Alien Dictionary

Also asked at Uber, Waymo

Bank System

Also asked at Coinbase, Dropbox

Cheapest Flights Within K Stops

Also asked at Snowflake, TikTok

Contains Duplicate II

Also asked at Netflix

Design a Booking and Reservation System

Design a Currency Exchange System

Also asked at TikTok

Design a Distributed Job Scheduler

Also asked at DoorDash, Figma +2

Design a Notification System for Reddit

Also asked at DoorDash, Microsoft +2

Design Excel Sum Formula

Also asked at Ramp, Waymo

Employee Free Time

Flatten 2D Vector

Intersection of Two Linked Lists

IP to CIDR

Maximum Candies You Can Get from Boxes

Palindrome Pairs

Pour Water

Recommendation / Ranking System

ML System Design · Also asked at Amazon, Atlassian +4

Sliding Puzzle

Smallest Common Region

Two Sum

Also asked at Amazon, Apple +5

Word Search II

Also asked at Reddit, Snowflake +2