Anthropic Software Engineer Coding & Algorithms Interview Questions
Practice 71 real Coding & Algorithms interview questions for Software Engineer roles at Anthropic.
"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"
"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"
"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."
"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."
"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."
"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."
"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Design a single- and multi-threaded web crawler
Web Crawler (single-threaded, then multi-threaded) You are given: - A starting URL startUrl (e.g., "http://news.example.com/a/index.html"). - An inter...
Implement a Banking System
Design and implement an in-memory banking system. All operations are processed in non-decreasing timestamp order. Account identifiers are strings. Mon...
Find Duplicate Files
Implement a file deduplication tool. You are given a root directory containing many files. Return groups of duplicate files. Two files are duplicates ...
Fix a Corrupted Bootloader Instruction
This question evaluates the ability to simulate instruction-level program execution, reason about control flow and mutable program state (instruction ...
Convert stack samples to trace events
Question Implement convertToTrace(samples) that, given a chronologically ordered vector of stack samples (each sample contains a timestamp and a call-...
Maximum-Length Unique-Character Subset
This question evaluates a candidate's ability to combine bitmasking with backtracking or subset enumeration to maximize a constraint over combinations...
Word Search in a Letter Grid
This question evaluates a candidate's ability to search for multiple target words within a grid of letters using depth-first traversal and backtrackin...
Path Resolution with Symbolic Links
This question evaluates a candidate's ability to implement filesystem-style path resolution, including handling relative and absolute paths, dot compo...
In-Memory Key-Value Database with Nested Transactions
This question evaluates a candidate's ability to design a data structure that layers transactional state over a committed base, testing skills in nest...
Generate outputs for images and pipelines
You are given m input images and n processing pipelines. - Each pipeline is an ordered list of k operations (e.g., resize, rotate, crop, blur, color t...
Implement an in-memory DB with TTL backup/restore
This question evaluates implementation and reasoning skills for an in-memory nested key→field→value store with TTL-based expirations, snapshot backup/...
Parse and Reconstruct Stack Trace
Given a multi-line stack trace string from a single thread (e.g., each frame is in the form 'at Module::Function(file:line)'), design and implement a ...
Detect duplicate files efficiently
You are given access to a very large file system containing file paths and read access to file contents. Design an algorithm to identify groups of fil...
Design an IPv4 Address Iterator
This question evaluates a candidate's ability to represent and iterate IPv4 addresses, covering parsing, numeric arithmetic with carry between octets,...
Build a concurrent web crawler
This question evaluates understanding of concurrent programming, synchronization, thread safety, and graph traversal as applied to a multithreaded web...
Group Duplicate Files by Content
Group Duplicate Files by Content Given a snapshot of files, return groups of paths whose complete contents are identical. The interview report preserv...
Implement a Batch Image Processor
This question evaluates a candidate's competency in image processing operations and parallel/concurrent programming, covering basic transformations (g...
Implement a longest-match tokenizer
This question evaluates string-processing and algorithmic implementation skills for greedy longest-match tokenization, including handling runs of unma...
Find duplicate files and apply image operations
Part A — Find duplicate files by content You are given a list of directory records. Each record is a string describing a directory path followed by on...
Detect duplicate files by content
Detect duplicate files by content in a filesystem. Given access to a directory tree, return groups of file paths that have identical byte content. Min...