Pinterest

Bus Routes

Also asked at Uber

Coin Change

Also asked at Affirm

Count Subarrays With Score Less Than K

Design a Rate Limiter with Variable User Quotas

Also asked at Amazon, Atlassian +2

Design an Ad Event Aggregator

Also asked at Apple, Meta +2

Design an Asynchronous Media Processing Pipeline

Also asked at Dropbox

Design S3 Storage

Also asked at Snowflake

Design Search Autocomplete System

Also asked at MongoDB, Roblox

Design Search Typeahead

Also asked at Amazon, Apple +4

Expression Add Operators

Find K-th Smallest Pair Distance

Find Median from Data Stream

Also asked at Snowflake

Find Median Given Frequency of Numbers

Is Subsequence

Jump Game III

Longest Word in Dictionary

Optimal Account Balancing

Also asked at Affirm

Reorganize String

Shortest Path in a Grid with Obstacles Elimination

Shortest Way to Form String

Sparse Matrix Multiplication

String Compression

Also asked at Affirm, MongoDB