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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
Microsoft logo
Microsoft
Medium
Software EngineerSenior+ Locked

Parse a Signed Integer in an Arbitrary Base

Parse signed integers in bases 2–36 with explicit syntax, negative-boundary handling, pre-arithmetic overflow checks, and deterministic error preceden...

Coding & AlgorithmsParsing & InterpretersMath & Number Theory
3
0
45 people solved
Aug 30, 2026
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Infosys, Bloomberg, Microsoft, TCS, Apple, Yandex, PhonePe

Medium
Software Engineer

Detect a Length-Two-or-More Multiple-Sum Segment

Problem Return whether nums contains a contiguous subarray of at least two elements whose sum is an integer multiple of positive k. Zero is a multiple...

Coding & AlgorithmsArrays & StringsMath & Number Theory
0
0
7 people solved
Databricks logo
Databricks
Medium
Software Engineer

Implement run-length encoding and decoding

You are given a string consisting of lowercase English letters. You need to implement run-length encoding (RLE) and its corresponding decoding. 1. Enc...

Coding & AlgorithmsArrays & Strings
75
0
640 people solved
Dec 8, 2025
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Select the Nearest Eligible Elevator

Select the nearest elevator eligible for a passenger based on current floor, movement state, and requested direction. Specify same-floor behavior, idl...

Coding & AlgorithmsSimulation & State Machines
47
0
338 people solved
May 12, 2026
Amazon logo
AmazonTwilioAgoda

Also asked at Agoda, Google, Oracle, Salesforce, Bloomberg, Meta, Attentive, Grammarly, Goldman Sachs, Microsoft, Walmart Labs, Couchbase, Morgan Stanley, TikTok

Medium
Software Engineer

Erase Equal Adjacent Runs of Size k

Problem Repeatedly remove k adjacent equal letters from s, joining the two surrounding pieces after every removal. Return the final string when no rem...

Coding & AlgorithmsStacks & QueuesArrays & Strings
0
0
12 people solved
Uber logo
Uber
Medium
Software Engineer

Solve these algorithmic problems

You are given the following independent coding tasks. For each task, design an algorithm and implement a function that returns the requested output. -...

Coding & AlgorithmsDynamic ProgrammingBinary Search
77
2
620 people solved
Feb 11, 2026
Google logo
GoogleRocketLaneMeta

Also asked at Meta, Microsoft, Amazon, Oracle, Rippling, ServiceNow, Expedia, Waymo, LinkedIn, NVIDIA

Hard
Software Engineer

Count Visible People to the Right

Problem People stand from left to right with distinct heights given by heights. Person i can see person j to the right when every person strictly betw...

Coding & AlgorithmsStacks & Queues
2
0
15 people solved
Imc logo
Imc
Hard
Software Engineer

Choose container set to minimize waste

Question A pharmaceutical company is packaging liquid medicine for shipment. Each customer order has a required volume. The company can choose exactly...

Coding & AlgorithmsBinary SearchSorting
52
1
490 people solved
Oct 6, 2025
Amazon logo
Amazon
Hard
Software Engineer Locked

Minimize Replacements So Equal Product Values Are Contiguous

Minimize the replacement cost needed so every remaining product value occupies one contiguous block, where one operation changes all occurrences of on...

Coding & AlgorithmsIntervals & Scheduling
18
1
219 people solved
Jul 12, 2026
Citadel logo
Citadel
Medium
Software Engineer Locked

Maximize Earnings by Converting Days Off

Maximize total schedule earnings by converting at most k days off into workdays, accounting for both daily pay and bonuses for consecutive workdays.

Coding & AlgorithmsGreedySorting
25
0
249 people solved
Aug 7, 2026
Microsoft logo
MicrosoftGoogle
Medium
Software Engineer

Can a Growing Planet Absorb Every Asteroid?

Problem A planet starts with mass mass, and asteroids[i] is the mass of one asteroid. You may choose their collision order. The planet can absorb an a...

Coding & AlgorithmsGreedySorting
1
0
14 people solved
Waymo logo
Waymo
Medium
Software Engineer

Find Largest Adjacent Sorted Difference

Given an unsorted array of integers nums, compute the largest difference between two consecutive elements after the array is sorted in ascending order...

Coding & AlgorithmsSortingArrays & Strings
26
1
183 people solved
Apr 12, 2026
MongoDB logo
MongoDB
Medium
Software EngineerSenior+

Suppress repeat log messages printed within 10 seconds of their last printed occurrence

A logging component receives a stream of messages, each with an arrival timestamp in seconds. To keep the output readable, a message is printed only i...

Coding & AlgorithmsArrays & StringsRate Limiting
4
0
37 people solved
Jul 12, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Meta, Microsoft, Akamai, HP, Ubisoft

Easy
Software Engineer

Find the Longest Palindrome Length From Available Letters

Find the Longest Palindrome Length From Available Letters Given a string s of uppercase and lowercase English letters, return the greatest length of a...

Coding & AlgorithmsArrays & StringsGreedy
0
0
7 people solved
LinkedIn logo
LinkedIn
Easy
Software Engineer AI Locked

Debug Queues and Solve Arrays

This multi-part question evaluates competencies in data structures (heap invariants and in-place array manipulation), concurrent programming (designin...

Coding & AlgorithmsHeaps & Priority QueuesArrays & Strings
19
0
259 people solved
Mar 10, 2026
PhonePe logo
PhonePeAdobeMicrosoft

Also asked at Microsoft, Uber, Google, Meesho, MathWorks, Amazon, Morgan Stanley, Meta

Hard
Software Engineer

Count Segments Whose Exact Minimum and Maximum Match Two Bounds

Problem Count nonempty contiguous subarrays of nums whose minimum is exactly minK and whose maximum is exactly maxK. Return the number of index interv...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
11 people solved
Infosys logo
InfosysGoogleAmazonTikTok

Also asked at Amazon, TikTok

Easy
Software Engineer

Increase Values Just Enough for Strict Order

Problem One operation increments one entry of nums by one. Without rearranging or decreasing entries, make the array strictly increasing and return th...

Coding & AlgorithmsGreedyArrays & Strings
1
0
11 people solved
AMD logo
AMD
Medium
Software Engineer Locked

Find the Largest K Elements with Partitioning

Find the largest k occurrences with partition-based selection, sort only the output, and compare quickselect pivot risks with heap and full-sort alter...

Coding & AlgorithmsSortingHeaps & Priority Queues
4
0
41 people solved
Sep 14, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad Locked

Top K Frequent Values

Return the top k most frequent integers with a deterministic smaller-value tie-break and efficient frequency selection.

Coding & AlgorithmsHeaps & Priority QueuesArrays & Strings
53
1
834 people solved
Sep 2, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Find Duplicate Files by Content in a Directory Tree and Explain CPU vs I/O Costs

Walk a directory tree and report every group of files with identical contents, printing nothing when there are no duplicates. It tests staged filterin...

Software Engineering FundamentalsOperating Systems
7
0
55 people solved
Sep 18, 2026
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