New Grad Interview Questions
New grad loops are the most algorithm-heavy interviews you'll face: typically two to four coding rounds plus a behavioral, with medium-difficulty data structures and algorithms doing most of the work. These questions were reported by candidates interviewing for new grad and entry-level roles, so they're calibrated to that bar — harder than intern, lighter on system design than mid-level. If you're graduating and prepping for full-time interviews, drill these to build the pattern recognition that lets you spot a BFS, a sliding window, or a backtracking problem within seconds. Most questions come with a detailed solution that walks through the approach, not just the final code.
"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."
Compute Edit Distance
Compute Edit Distance Given two strings, return the minimum number of single-character operations needed to transform the first string into the second...
Recover from a Missed Deadline
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Organize a Product Initiative Across Stakeholders
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Stand by a Disputed Technical Judgment
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Search a Pattern Across the Leaf Text of a Binary Tree
Search for a pattern across the left-to-right concatenation of binary-tree leaf strings, including matches that cross leaf boundaries. This algorithm ...
Generate Every Ordered Sum Using Ones and Twos
Generate every ordered string of ones and twos whose digit values sum to a target integer, with no duplicates and lexicographic output. The problem te...
Explain Core ML Interview Concepts
You are in a phone screen for an applied scientist / machine-learning engineer role and are asked to verbally explain a set of machine-learning fundam...
Design an In-Memory Pub-Sub Model
Design an object-oriented, in-memory publish-subscribe model. Requirements: - A publisher can publish a message to a topic. - A subscriber can subscri...
Sort a String of Clothing Sizes
Sort a string containing only S, M, and L into size order in linear time. Extend the discussion to custom token orderings, unknown-size behavior, empt...
Design Scalable Notification Rate Limiter
Design a production-grade rate limiter for notification sending that enforces limits at three levels of an organizational hierarchy. The system expose...
Backend Fundamentals Deep Dive: MySQL Internals, Redis, and the HTTP/HTTPS Request Lifecycle
This question tests deep backend engineering knowledge across three core domains: MySQL InnoDB internals (logging, indexing, isolation), Redis persist...
Design multi-region banking data synchronization
System design: Global bank with multi-region data consistency A digital bank operates in multiple geographic regions (e.g., EU, US, APAC). Users can l...
Match Tagged Problems to Skilled Programmers at Scale
Model tagged problems and skilled programmers as a bipartite matching problem, then extend the design to distributed and streaming workloads. The exer...
Solve a Set of Probability and Quantitative Reasoning Problems
Solve the following quantitative reasoning problems. Show enough work to make each result auditable, state any interpretation you need, and keep exact...
Design Uber Eats Restaurant Recommendations
This question evaluates a candidate's ability in end-to-end machine learning system design for personalized restaurant recommendations in a food-deliv...
Find the Most Frequent IP Addresses in a File Too Large for Memory
Design an exact, bounded-memory method for finding the most frequent IP addresses in a file far larger than RAM. Analyze memory and disk-I/O trade-off...
Solve tree and DP problems
This coding round contained two algorithm questions: 1. Deepest shared ancestor in a binary tree You are given the root of a binary tree and two ...
Design a TCP Discord-like chat server
Design a Discord-like chat server that accepts multiple clients over raw TCP (e.g., test via PuTTY/telnet). Functional requirements: - Clients connect...
Design Robust Large-Input Processing
The string-reduction algorithm above is now part of a backend service. Each job reads a text object from S3-compatible storage, applies the transforma...
Reviewing a Freight-Scheduler Codebase: Bugs, Data Structures, and Concurrency
You have just finished implementing process_order(...) inside a large provided codebase for a freight-scheduling system (this is the review stage of a...