Adobe interview questions

Optimize LLM Training and Serving

Companies: Adobe

LLM Inference & Serving · ML System Design · Transformers & Attention

Last reported May 2026

Design a password reset system

Design a forgot password system that allows users to securely reset their passwords through email verification or other authentication methods.

Companies: Adobe

Last reported Jan 2026

Reverse Nodes in k-Group

Given the head of a linked list and an integer k, reverse the nodes of the list k at a time and return the modified…

Companies: Adobe, Microsoft, TikTok

Linked List · Recursion

Last reported Dec 2025

Design Online Auction System

Design an auction system where users can create auction posts for items, place bids, view top bidders, and receive notifications when auctions end.

Companies: Adobe, Apexx Global, Intuit, Meta +1

System Design

Last reported Sep 2025

Best Time to Buy and Sell Stock

Given an array of daily stock prices, compute the maximum profit achievable from exactly one buy-before-sell transaction (i.e., the largest prices[j] - prices[i] with j…

Companies: Adobe, Amazon, Apple, Atlassian +10

Array · Dynamic Programming

Building Boxes

Place n unit cubes into stacks on an n×n floor with the rule that a cube can be stacked only if the supporting cube's four…

Companies: Adobe

Binary Search · Greedy · Math

Count Subarrays With Fixed Bounds

Count the number of contiguous subarrays whose minimum equals minK and maximum equals maxK. The main challenge is to efficiently (O(n)) scan the array, partitioning…

Companies: Adobe, Uber

Array · Monotonic Queue · Queue · Sliding Window

Design Authentication Manager

Manage tokens that expire timeToLive seconds after creation/renewal, supporting generate, renew (only if the token is still unexpired), and countUnexpiredTokens (with…

Companies: Adobe, OpenAI

Design · Doubly-Linked List · Hash Table · Linked List

Explain leakage, missing data, and common losses

Companies: Adobe

Data Cleaning & Wrangling · Feature Engineering

Explain Transformer Attention Fundamentals

Companies: Adobe

LLM Inference & Serving · Transformers & Attention

Find Median from Data Stream

Maintain a data structure that supports adding integers from a stream and returning the current median efficiently for many interleaved addNum and findMedian calls. The…

Companies: Adobe, Amazon, D. E. Shaw, Intuit +4

Data Stream · Design · Heap (Priority Queue) · Sorting

Find Peak Element

Find any index of a "peak" (an element strictly greater than its neighbors, with array ends treated as -∞) in an integer array where adjacent…

Companies: Adobe, Meta

Array · Binary Search

Flatten a Multilevel Doubly Linked List

Companies: Adobe, Amazon, Bloomberg, Microsoft

Depth-First Search · Doubly-Linked List · Linked List

Flatten Nested List Iterator

Given a nested list where elements may be integers or sublists, implement a NestedIterator with next() and hasNext() that returns all integers in depth‑first, left‑to‑right…

Companies: Adobe, LinkedIn

Depth-First Search · Design · Iterator · Queue

Fruit Into Baskets

Given an array of fruit types where you can pick from a contiguous sequence while carrying at most two distinct types (two baskets), return the…

Companies: Adobe, Amazon, Meta, Salesforce

Array · Hash Table · Sliding Window

Gas Station

Given two arrays gas and cost around a circular route, find the unique starting station index from which you can travel clockwise once without your…

Companies: Adobe, Bloomberg, Expedia, Goldman Sachs +2

Array · Greedy

Longest Palindromic Substring

Given a string s, return the longest substring that reads the same forwards and backwards. The core challenge is efficiently finding palindromic spans around centers…

Companies: Adobe, Amazon, Bloomberg, Goldman Sachs +6

Dynamic Programming · Manacher · String · Two Pointers

LRU Cache

Implement an LRUCache that supports O(1) average-time get(key) returning the value or -1 and put(key, value) which inserts or updates a key and, if capacity…

Companies: Adobe, Amazon, Anthropic, Apple +29

Data Structure Design · Design · Doubly-Linked List · Hash Table

Maximize Distance to Closest Person

Given a binary array where 1s are occupied seats, find an empty seat that maximizes the distance to the nearest occupied seat. The core challenge…

Companies: Adobe, Roblox

Array

Merge Two Sorted Lists

Companies: Adobe, Google, LinkedIn, Meta +2

Linked List · Recursion

Second Highest Salary

Find the second highest distinct salary from the Employee table and return it, or null if fewer than two distinct salary values exist. Essentially, retrieve…

Companies: Adobe

Database