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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
1.5k
Companies
980
Updated
11.12.2026
1.5k Questions 980 Companies11.12.2026
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
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer

Compute ring window max and deletion indices

Part A — Ring window maximum: You are given n computers arranged in a circle, represented by an array of bits (1 = on, 0 = off), and an integer k (1 <...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
13
0
130 people solved
Jul 31, 2025
Meta logo
Meta
Hard
Software Engineer

Check and infer custom alphabet

You are working with an unknown language that uses a custom alphabetical order, such as ['a', 'd', 'c', 'b', ...]. Implement the following: 1. Check s...

Coding & AlgorithmsGraphs
6
1
94 people solved
Feb 28, 2026
Airbnb logo
Airbnb
Easy
Software Engineer Locked

Implement Text Layout and Query Parsing

This question evaluates string-processing and parsing competencies, covering tokenization, constrained line-wrapping and layout decisions (including p...

Coding & AlgorithmsArrays & StringsParsing & Interpreters
14
2
141 people solved
Mar 9, 2026
Netflix logo
Netflix
Medium
Software Engineer

Find longest unique show window

Given an array of show names (strings) representing a user's viewing history, return the start and end indices of a longest contiguous subarray that c...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
13
0
205 people solved
Aug 1, 2025
Meta logo
Meta
Medium
Data Engineer

Check carpool trip feasibility

You are given a list of trips where each trip i is (passengers_i, start_i, end_i) with start_i < end_i on a one-dimensional route. A single vehicle wi...

Coding & AlgorithmsIntervals & SchedulingArrays & Strings
9
0
111 people solved
Aug 1, 2025
Apple logo
Apple
Medium
Data Scientist

Remove shortest subarray to sort array

Given an integer array nums (length up to 2×10^5), return the shortest subarray [L,R] you can remove so that the remaining elements form a non‑decreas...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
9
0
141 people solved
Oct 13, 2025
Chewy logo
Chewy
Medium
Data Scientist

Find the Lexicographically Smallest Index Pair Whose Values Sum to a Target

Given an integer array nums and an integer target, find two different positions in the array whose values add up to target, and return those positions...

Coding & AlgorithmsArrays & Strings
0
0
1 people solved
Sep 29, 2026
Citadel logo
Citadel
Medium
Software Engineer

Solve four algorithmic problems

Answer the following independent algorithmic questions: 1) Count extendable prefixes for '10' subsequences: Given a binary string s and an integer k, ...

Coding & AlgorithmsDynamic Programming
35
1
349 people solved
Sep 6, 2025
NVIDIA logo
NVIDIA
Easy
Software Engineer

Compare arrays, linked lists, hash tables, trees

Answer the following computer-science fundamentals questions: 1) What are the time complexities (Big-O) of common sorting algorithms (e.g., bubble sor...

Software Engineering FundamentalsSorting
17
0
217 people solved
Feb 6, 2026
TikTok logo
TikTok
Medium
Software Engineer Locked

Solve common string/DP/stack problems

This set of four coding tasks evaluates proficiency in string algorithms, dynamic programming, sliding-window techniques, monotonic stack usage, and t...

Coding & AlgorithmsTwo Pointers & Sliding WindowDynamic Programming
13
0
174 people solved
Feb 12, 2026
Axon logo
Axon
Medium
Software Engineer Locked

Implement encryption and constant-time random set

This question evaluates understanding of symmetric shared-secret string transformation and the design of a randomized set supporting expected O(1) ope...

Coding & AlgorithmsCryptographyData Structure Design
21
0
241 people solved
Feb 8, 2026
Dropbox logo
Dropbox
Medium
Software Engineer

Implement feedback for word guessing game

You are implementing the core logic for a simple word-guessing game. There is: - A dictionary of valid words: a list of distinct lowercase strings, al...

Coding & AlgorithmsArrays & Strings
10
0
189 people solved
Nov 1, 2025
Spotify logo
Spotify
Medium
Backend Engineer

Most Common Three-Website Visit Sequence Across Users

You are given a log of website visits. Record i says that the user usernames[i] visited the website websites[i] at time timestamps[i]. The three lists...

Coding & AlgorithmsArrays & Strings
1
0
11 people solved
Jul 7, 2026
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Compute the next lexicographic permutation

This question evaluates understanding of permutations and lexicographic ordering, in-place array manipulation, and algorithmic reasoning about time an...

Coding & AlgorithmsArrays & Strings
10
0
85 people solved
Feb 12, 2026
Squarepoint logo
Squarepoint
Medium
Data Scientist

Implement drawdown, single-trade profit, coin change

Implement and analyze the following three problems: 1) Maximum drawdown of cumulative PnL: "What is the maximum drawdown of a cumulative PnL (profit a...

Coding & AlgorithmsArrays & StringsDynamic Programming
12
0
92 people solved
Sep 6, 2025
PayPal logo
PayPal
Medium
Software Engineer

Find k most frequent in linear time

Given an integer array nums and an integer k (1 ≤ k ≤ number of distinct values in nums), return any k values that appear most frequently. Implement a...

Coding & AlgorithmsData Structure DesignArrays & Strings
12
0
137 people solved
Aug 13, 2025
Meta logo
Meta
Medium
Data Engineer

Validate carpool capacity

Question LeetCode 1094. Car Pooling – Given trips[i] = [numPassengers, start, end] and an integer capacity, return true if the vehicle can fulfill all...

Coding & AlgorithmsIntervals & Scheduling
9
0
128 people solved
Aug 4, 2025
Apple logo
Apple
Medium
Software Engineer

Design a rolling five-minute hit counter

Design an in-memory hit counter that supports: ( 1) recordHit(timestamp) to log an event, and ( 2) getCountLast5Minutes(now) to return the number of e...

Coding & AlgorithmsData Structure DesignTwo Pointers & Sliding Window
11
0
146 people solved
Sep 6, 2025
LinkedIn logo
LinkedIn
Medium
Software Engineer

Solve six algorithmic problems

Answer the following independent algorithmic prompts. For each, explain your approach, justify data structures, analyze time/space complexity, and pro...

Coding & AlgorithmsTreesArrays & Strings
12
0
208 people solved
Sep 6, 2025
Amazon logo
Amazon
Hard
Software EngineerIntern Locked

Merge two sorted arrays in-place

This question evaluates array-manipulation and in-place algorithm skills, including understanding of sorted-data merging, index/pointer management, an...

Coding & AlgorithmsArrays & StringsSorting
10
0
137 people solved
Feb 8, 2026
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