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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
333
Companies
980
Updated
11.06.2026
333 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
Apple logo
Apple
Medium
Software Engineer

Solve 15 common interview problems

Below are fifteen independent coding problems commonly discussed in software engineering interviews. For each one, write an efficient algorithm and be...

Coding & AlgorithmsArrays & StringsGraphs
22
1
218 people solved
Jan 27, 2026
Meta logo
Meta
Medium
Software Engineer

Solve Four Online Assessment Problems

Complete the following four independent coding tasks. For each task, write a function that returns the requested result. 1. Find the best value index ...

Coding & AlgorithmsGrids & MatricesIntervals & Scheduling
16
0
132 people solved
Mar 19, 2026
Amazon logo
Amazon
Medium
Software Engineer

Answer Repeated Range-Frequency Queries

Problem Implement a RangeFreqQuery object for a fixed integer array arr. Construct the object from the supplied array for later queries. Each call to ...

Coding & AlgorithmsData Structure DesignBinary Search
1
0
11 people solved
Anthropic logo
Anthropic
Medium
Software Engineer

Design an in-memory banking service

Design an in-memory banking service supporting timestamped operations and edge-case semantics. Implement: ( 1) create_account(id, t): Create a new acc...

Coding & AlgorithmsData Structure DesignHeaps & Priority Queues
153
3
1352 people solved
Sep 6, 2025
Rippling logo
Rippling
Medium
Software Engineer Locked

Implement Food Delivery Billing

This question evaluates proficiency in implementing business billing rules, time and distance-based fee calculations, timestamp arithmetic, numerical ...

Coding & AlgorithmsArrays & Strings
26
0
295 people solved
Mar 12, 2026
Uber logo
Uber
Hard
Data Scientist

Implement sqrt with Newton vs binary search

Implement numerically robust square-root routines and analyze convergence Task 1 — sqrt_newton(x, tol=1e-12) Implement a Python function that returns ...

Coding & AlgorithmsMath & Number TheoryBinary Search
11
0
208 people solved
Oct 13, 2025
Pinduoduo logo
Pinduoduo
Medium
Software Engineer

Longest Single-Letter Substring After at Most k Character Changes

You are given a string s of uppercase English letters and an integer k. You may perform at most k operations; each operation changes one character of ...

Coding & AlgorithmsTwo Pointers & Sliding Window
1
0
19 people solved
Jul 17, 2026
Salesforce logo
SalesforceAgoda
Medium
Software Engineer

Maximum Team Size from Overlapping Availability

Maximum Team Size from Overlapping Availability You are given two arrays, startTime and endTime, each of length n. Employee i is available throughout ...

Coding & AlgorithmsIntervals & SchedulingBinary Search
1
0
15 people solved
Qube Research & Technologies logo
Qube Research & Technologies
Medium
Software Engineer

Implement flat_map and design wealth redistribution

Part 1 — Implement a flat_map: Design and implement an associative container flat_map backed by a sorted dynamic array of (Key, Value) pairs. Support ...

Coding & AlgorithmsData Structure DesignBinary Search
22
0
187 people solved
Sep 6, 2025
Two Sigma logo
Two Sigma
Easy
Data Scientist

Match readings with latest same-city humidity

Problem You are given two time-sorted lists of sensor readings: - Temperature records: (time, city, reading) - Humidity records: (time, city, reading)...

Coding & AlgorithmsTwo Pointers & Sliding Window
24
2
270 people solved
Dec 15, 2025
Amazon logo
AmazonMicrosoftGoogleBloomberg

Also asked at Google, Bloomberg

Medium
Software Engineer

Find Each Interval's Nearest Eligible Starting Interval

Find Each Interval's Nearest Eligible Starting Interval You are given intervals [start_i,end_i] with unique starting points. For each interval i, find...

Coding & AlgorithmsBinary SearchIntervals & Scheduling
0
0
7 people solved
Uber logo
Uber
Medium
Software Engineer

Implement binary search from scratch

Question Implement binary search on a sorted integer array without using any library helpers (no bisect, Arrays.binarySearch, etc.). Provide both iter...

Coding & AlgorithmsBinary Search
22
0
167 people solved
Aug 1, 2025
Visa logo
VisaMicrosoftAmazonOracle

Also asked at Amazon, Oracle

Medium
Software Engineer

Move Units Left to Minimize the Largest Array Value

Problem One operation chooses i>0 with nums[i]>0, decreases nums[i] by 1, and increases nums[i-1] by 1. Starting from nonnegative nums, return the sma...

Coding & AlgorithmsGreedyArrays & Strings
0
0
11 people solved
OpenAI logo
OpenAI
Medium
Machine Learning Engineer Locked

Find Minimum Compatible Version

This question evaluates binary search, monotonic predicates, careful version ordering, and cost-aware optimization of expensive compatibility checks. ...

Coding & AlgorithmsBinary Search
18
1
254 people solved
Mar 9, 2026
Two Sigma logo
Two Sigma
Medium
Quantitative ResearcherIntern

Linear Interpolator with Extrapolation

Linear Interpolator with Extrapolation You are given n knot points in a 2D coordinate system, where knots[i] = [x_i, y_i]. All x-coordinates are disti...

Coding & AlgorithmsBinary SearchMath & Number Theory
19
0
149 people solved
Sep 10, 2025
Google logo
Google
Hard
Software Engineer

Maximum Minimum Manhattan Distance on a Square Boundary

Problem A square has corners (0,0), (0,side), (side,0), and (side,side). You are given distinct integer-coordinate points on its boundary and an integ...

Coding & AlgorithmsMath & Number TheoryBinary Search
0
0
14 people solved
Uber logo
UberMicrosoft
Medium
Software Engineer

Values Safe Under Every Search Pivot

Problem The unique integers in nums need not be sorted. A search repeatedly chooses any element of the remaining contiguous sequence as pivot. Equalit...

Coding & AlgorithmsBinary SearchArrays & Strings
1
0
10 people solved
Google logo
Google
Medium
Software Engineer Locked

Find a Horizontal Cut That Bisects Rectangle Area

Solve a computational-geometry problem that asks for the horizontal line dividing the combined area of many disjoint rectangles in half. The exercise ...

Coding & AlgorithmsBinary SearchMath & Number Theory
28
2
220 people solved
Jun 4, 2026
Meta logo
Meta
Medium
Software Engineer

Implement an in-memory key-field-value DB with TTL

In-Memory DB with TTL + Scan + Backup/Restore Implement an in-memory database storing records by (key, field) -> value with optional TTL. Data model /...

Coding & AlgorithmsKey-Value StoresData Structure Design
16
0
206 people solved
Feb 11, 2026
Amazon logo
Amazon
Hard
Software Engineer

Maximum Meeting Earnings Including Idle Gaps

Maximum Meeting Earnings Including Idle Gaps You are given meetings, where each row is [start, end, revenue]. Select a nonempty subset of meetings tha...

Coding & AlgorithmsIntervals & SchedulingDynamic Programming
0
0
5 people solved
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