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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
161
Companies
980
Updated
11.06.2026
161 Questions 980 Companies11.06.2026
PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

Showing 20 results
MongoDB logo
MongoDB
Medium
Software Engineer Locked

Implement a thread-safe high-concurrency LRU cache

This question evaluates understanding of concurrent data structures, synchronization strategies, and LRU cache semantics within the Coding & Algorithm...

Coding & AlgorithmsData Structure DesignConcurrency
32
0
255 people solved
Jan 22, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer Locked

Design and implement an LRU cache

This question evaluates knowledge of data structures, algorithmic design, API design, and memory/resource management required to implement an efficien...

Coding & AlgorithmsData Structure DesignLinked Lists
12
0
157 people solved
Feb 8, 2026
Airbnb logo
Airbnb
Medium
Software Engineer

Solve Linked-List and Iterator Problems

You are asked to solve two coding problems. Problem 1: Detect shared nodes between possibly cyclic linked lists You are given the heads of two singly ...

Coding & AlgorithmsLinked ListsData Structure Design
21
0
209 people solved
Apr 8, 2026
Adyen logo
Adyen
Medium
Software Engineer

Implement LRU and target-sum combinations

Implement LRU and target-sum combinations Design and implement the following: 1) An in-memory cache with Least Recently Used (LRU) eviction supporting...

Coding & AlgorithmsData Structure DesignBacktracking & Recursion
34
0
239 people solved
Jul 26, 2025
Apple logo
Apple
Medium
Software Engineer

Implement rotation, LRU cache, streaming median, cycle detection

Complete the following coding tasks. For each, provide code, justify time/space complexity, and describe edge cases: 1) Image rotation: Given an n×n i...

Coding & AlgorithmsData Structure DesignGraphs
20
0
207 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Software Engineer

Solve Two OA Algorithm Problems

The post describes two separate coding questions from an online assessment: 1. Greedy deletion by minimum value Given an integer array nums, repeatedl...

Coding & AlgorithmsGreedy
19
0
227 people solved
Jan 8, 2026
Salesforce logo
Salesforce
Medium
Software EngineerSenior+

Delete Every Value That Repeats in an Unsorted Singly Linked List

A singly linked list holds integer values in no particular order. Delete every node whose value occurs more than once anywhere in the list, removing a...

Coding & AlgorithmsLinked Lists
2
0
24 people solved
Feb 27, 2026
Meta logo
Meta
Medium
Machine Learning EngineerSenior+ Locked

Deep copy a linked list with random pointers

This question evaluates understanding of linked-list structures, pointer/reference manipulation, deep versus shallow copying, and the ability to analy...

Coding & AlgorithmsLinked Lists
5
0
89 people solved
Jan 22, 2026
Disney logo
Disney
Medium
Software Engineer Locked

Implement an LRU cache

This question evaluates understanding of data structures and algorithmic optimization for constant-time cache operations, with emphasis on cache evict...

Coding & AlgorithmsData Structure DesignLinked Lists
9
0
93 people solved
Jan 22, 2026
Chime logo
Chime
Medium
Software Engineer

Implement single-tab browser history navigation

Implement a BrowserSession for a single-tab browser. APIs: - BrowserSession(string homepage): Initialize with homepage; current page starts at homepag...

Coding & AlgorithmsData Structure Design
17
0
249 people solved
Sep 6, 2025
Salesforce logo
Salesforce
Medium
Software Engineer

Remove duplicates from a singly linked list

You are given the head of a singly linked list of integers. Modify the list in place so that it contains only the first occurrence of each value (i.e....

Coding & AlgorithmsLinked Lists
13
0
170 people solved
Nov 13, 2025
Medium
Software Engineer

Implement an LRU Cache with Constant-Time Operations

Implement an LRU cache with a positive capacity. get(key) returns the stored value and makes that entry most recently used, or returns -1 if absent. p...

Coding & AlgorithmsData Structure DesignLinked Lists
1
0
8 people solved
May 11, 2026
Google logo
Google
Hard
Machine Learning Engineer

Design data structure similar to LRU cache

You are asked to design and implement a data structure that behaves similarly to an LRU (Least Recently Used) cache, but with a small variation: - The...

Coding & AlgorithmsData Structure DesignLinked Lists
13
1
152 people solved
Dec 8, 2025
Citi logo
Citi
Medium
Software Engineer

Explain data structure fundamentals

Explain how a hash map works internally: hashing, collision resolution strategies (separate chaining vs. open addressing), load factor, and resizing. ...

Coding & AlgorithmsData Structure Design
12
0
126 people solved
Sep 6, 2025
LinkedIn logo
LinkedIn
Medium
Software EngineerSenior+ Locked

Solve substring and top‑K pair problems

This multi-part question evaluates algorithm design and data-structure proficiency across string processing (minimum window substring), pair-selection...

Coding & AlgorithmsTwo Pointers & Sliding WindowData Structure Design
19
0
144 people solved
Oct 13, 2025
Bloomberg logo
Bloomberg
Hard
Software EngineerSenior+ Locked

Detect Recent Duplicate Records with Bounded Memory

Detect repeated text-title pairs in a time-ordered record stream within an inclusive recent window. Emit pairs against the most recent matching record...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
18
1
175 people solved
Jul 1, 2026
Shopify logo
Shopify
Medium
Data Scientist

Implement an LRU Cache

Problem: LRU Cache (LeetCode 146) Design and implement a Least Recently Used (LRU) Cache that supports the following operations in average O(1) time. ...

Coding & AlgorithmsData Structure DesignLinked Lists
26
0
186 people solved
Aug 10, 2025
Google logo
Google
Medium
Software Engineer

Add two big integers from digit lists

You are given two non-empty singly linked lists (or arrays) representing two non-negative integers. The digits are stored in reverse order, and each n...

Coding & AlgorithmsLinked ListsMath & Number Theory
19
0
177 people solved
Nov 24, 2025
Pinterest logo
Pinterest
Medium
Machine Learning EngineerSenior+ Locked

Solve Expression and Tree-List Problems

This question evaluates competency in string expression generation under a custom left-to-right evaluation rule and in-place binary search tree manipu...

Coding & AlgorithmsBacktracking & RecursionTrees
26
0
188 people solved
Feb 21, 2026
Uber logo
Uber
Medium
Software Engineer

Design top-K tracker with linked lists

Design top-K tracker with linked lists Design a data structure that tracks the top-K most frequent keys in a stream. Support operations increment(key)...

Coding & AlgorithmsData Structure DesignLinked Lists
15
0
126 people solved
Aug 1, 2025
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