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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
Amazon logo
Amazon
Medium
Software Engineer Locked

Minimize Global Replacements to Make Values Contiguous

Find the fewest global value-replacement operations needed so every remaining value occupies one contiguous block, accounting for compressed runs and ...

Coding & AlgorithmsArrays & Strings
25
0
209 people solved
Aug 14, 2026
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Coupang, Meta, EPAM Systems, Bloomberg, PhonePe, TikTok, Zopsmart, Josh Technology, Deloitte, Zeta Global, Adobe, Oracle, ByteDance

Medium
Software Engineer

Minimize a Number After Removing Digits

Minimize a Number After Removing Digits Given a decimal string num representing a nonnegative integer and an integer k, delete exactly k digits. Keep ...

Coding & AlgorithmsGreedyStacks & Queues
0
0
11 people solved
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
Google logo
GoogleMetaAmazon

Also asked at Amazon, Bloomberg, TikTok, Microsoft, Uber, HashedIn, JPMorgan Chase, Yandex

Medium
Software Engineer

Count Contiguous Segments Whose Sum Is Divisible by K

Problem Return the number of nonempty contiguous subarrays of nums whose sum is divisible by k. Values may be negative, and a zero sum is divisible by...

Coding & AlgorithmsArrays & StringsMath & Number Theory
1
0
12 people solved
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
Amazon logo
AmazonMetaGoogle

Also asked at Google, Microsoft, Bloomberg, Generalmotors

Hard
Software Engineer

Choose Three Disjoint Equal-Length Windows with Lexicographic Ties

Problem Choose three nonoverlapping length-k contiguous subarrays of nums maximizing their combined sum. Return their starting indices in increasing o...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
18 people solved
DevRev logo
DevRevAmazonGoogle

Also asked at Google, Meta, Microsoft, Bloomberg

Hard
Software Engineer

Find the Shortest Contiguous Segment Reaching a Sum Threshold

Problem Return the minimum length of a nonempty contiguous segment of nums whose sum is at least k. Return -1 if no segment qualifies. Values may be n...

Coding & AlgorithmsStacks & QueuesArrays & Strings
1
0
14 people solved
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Nutanix

Medium
Software Engineer

Maximize Two Sight Values Minus Their Index Distance

Problem Choose two different positions i<j in values. Their score is values[i]+values[j]+i-j, combining both values and subtracting their index distan...

Coding & AlgorithmsArrays & StringsDynamic Programming
1
0
10 people solved
Capital One logo
Capital One
Medium
Software Engineer Locked

Check Alternating Highs and Lows Around a Circular Array

Check strict high-low alternation around a circular array, including equal neighbors, wraparound comparisons, and the two-element case.

Coding & AlgorithmsArrays & Strings
11
0
114 people solved
Sep 7, 2026
Virtu Financial logo
Virtu Financial
Easy
Software Engineer

Array After Simultaneous Local-Extremum Updates

Problem Each day, use the previous day's whole array to update every interior element simultaneously: increase it by 1 if strictly smaller than both n...

Coding & AlgorithmsSimulation & State MachinesArrays & Strings
1
0
18 people solved
Ninjatrader logo
Ninjatrader
Hard
Software Engineer

Server Log Analyzer: Parse JSON Lines, Summarize Latency, Flag Per-Minute Anomalies

Complete a small server-log analyzer in Python. The online IDE provides three files: server.log (a sample log), analyzer_stub.py (skeleton code with t...

Software Engineering FundamentalsObservabilityBatch & Stream Processing
7
0
47 people solved
Sep 9, 2026
Rippling logo
Rippling
Medium
Software Engineer AI Locked

Implement Article Vote Tracking

This question evaluates data structures, state-management, and algorithmic skills for tracking per-user votes, detecting vote flips, maintaining a mos...

Coding & AlgorithmsData Structure DesignArrays & Strings
29
1
389 people solved
May 14, 2026
Infosys logo
Infosys
Medium
Software Engineer

Equalize Two Dice-Valued Array Sums

Problem Each entry in nums1 and nums2 is an integer from 1 through 6. One operation changes any entry of either array to any integer in that range. Th...

Coding & AlgorithmsGreedyArrays & Strings
0
0
12 people solved
Amazon logo
AmazonUberMetaMicrosoft

Also asked at Meta, Microsoft

Hard
Software Engineer

Find the Nearest Different Decimal Palindrome

Problem The string n represents a positive integer. Return the nearest palindromic integer as a decimal string, excluding the input integer itself. Mi...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
1
0
12 people solved
Google logo
GoogleAmazonMicrosoft
Medium
Software Engineer

Best Nonempty Subarray After At Most One Erasure

Problem Choose a contiguous subarray of arr and optionally erase one of its elements. At least one chosen element must remain. Return the greatest sum...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
11 people solved
Google logo
Google
Easy
Software Engineer

Shortest Distance Between Two Words, Then a Word-List Class With an Anagram Check

You are given a list of words, which may contain repeats, and two words word1 and word2. Return the smallest distance between an occurrence of word1 a...

Software Engineering FundamentalsArrays & Strings
2
0
26 people solved
Jun 28, 2026
Pinterest logo
Pinterest
Medium
Software Engineer Locked

List Unallocated Experiment Buckets

Identify every unallocated bucket in a fixed experiment-traffic range after considering control and enabled-group assignments. This problem examines e...

Coding & AlgorithmsArrays & Strings
21
0
144 people solved
Jul 23, 2026
Oracle logo
Oracle
Medium
Software Engineer

Rearrange an Integer Array into Its Next Lexicographic Arrangement

Given an array of integers nums, rearrange it into its next arrangement: the smallest arrangement of the same values that is lexicographically greater...

Coding & AlgorithmsArrays & Strings
3
0
38 people solved
Sep 14, 2026
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Bloomberg, Microsoft

Easy
Software Engineer

Find the Longest Subsequence with Exact Value Spread One

Problem A harmonious subsequence has maximum value minus minimum value exactly one. Return the greatest length of such a subsequence of nums, or zero ...

Coding & AlgorithmsArrays & Strings
0
0
12 people solved
NVIDIA logo
NVIDIA
Easy
Software Engineer

Return all file paths via DFS

You are given an in-memory representation of a file system as a tree. Each node has: - name (string) - isFile (boolean) - children (list of nodes, emp...

Coding & AlgorithmsTrees
38
0
278 people solved
Mar 4, 2026
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