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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
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
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
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
Netflix logo
Netflix
Medium
Software Engineer Locked

Design Prefix-Aware Deduplication for Homepage Content Rows

Design homepage row construction that prevents content duplication across protected prefixes while retaining candidate order and within-row uniqueness...

Software Engineering FundamentalsArrays & StringsData Structure Design
16
0
133 people solved
Jul 31, 2026
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
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
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
Microsoft logo
MicrosoftAtlassianAmazon

Also asked at Amazon, Google, Salesforce

Hard
Software Engineer

Minimum Sum of Daily Job-Difficulty Maxima

Problem Finish the jobs in their given dependency order over exactly d days, completing at least one job each day. Each day costs the maximum difficul...

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

Calculate Highway Tolls from Ordered Checkpoint Logs

Calculate a day's total highway toll from chronologically ordered vehicle checkpoint logs, charging every consecutive recorded segment even when a veh...

Coding & AlgorithmsArrays & Strings
80
4
882 people solved
Aug 12, 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
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
Upstart logo
Upstart
Medium
Software Engineer

Solve Five OA Coding Tasks

This is an online-assessment screen consisting of five independent coding tasks. Each task is self-contained — there is no shared state between them —...

Coding & AlgorithmsArrays & StringsMath & Number Theory
24
0
450 people solved
Apr 10, 2026
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
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Grammarly, Bloomberg, Microsoft, LinkedIn

Medium
Software Engineer

Find Distinct Repeated Ten-Base DNA Windows

Problem Return every distinct length-10 substring that occurs more than once in the DNA string s. Overlapping occurrences count. Include a repeated se...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
0
0
9 people solved
Google logo
GoogleMicrosoftAmazon

Also asked at Amazon, Bloomberg, HashedIn, Roblox, Meta, Salesforce, Infosys, Uber, TikTok, ServiceNow, Capital One

Hard
Software Engineer

Count Contiguous Subarrays with Exactly K Distinct Values

Problem Return the number of nonempty contiguous subarrays of nums containing exactly k different integers. Different index intervals count separately...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
18 people solved
Bloomberg logo
BloombergGoogleMeta

Also asked at Meta, Adobe, Amazon, Microsoft, Zoho

Easy
Software Engineer

Order Integers by Rarity and Descending Ties

Problem Return the entries of nums ordered by increasing occurrence count. When two different values occur equally often, the larger value must come f...

Coding & AlgorithmsSortingArrays & Strings
1
0
13 people solved
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Meta, Bloomberg, PhonePe, BNY Mellon, Goldman Sachs, Ripple, Waymo

Medium
Software Engineer

Count Fleets Reaching a Common Destination

Problem Cars start at distinct positions below target and move toward it at their positive speeds. A car cannot pass another; after catching a car or ...

Coding & AlgorithmsStacks & QueuesSorting
0
0
11 people solved
Google logo
GoogleBloombergMicrosoft

Also asked at Microsoft, Amazon, Meta

Hard
Software Engineer

Count Distinct Nonempty Subsequences of a Lowercase String

Problem Return the number of different nonempty strings obtainable from s by deleting characters while preserving the order of those retained. Equal r...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
12 people solved
Voleon logo
Voleon
Medium
Quantitative Researcher

Return Words in Repeated Anagram Groups

Given a list of words, return every word whose anagram signature occurs more than once in the list. A signature records how many times each letter occ...

Coding & AlgorithmsArrays & Strings
13
0
113 people solved
Jun 27, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Assign Each Person the Nearest Cake in a One-Dimensional Row

People and cakes stand in a single row of positions, described by an integer array whose values are 0, 1 or 2. The original question asks for the clos...

Coding & AlgorithmsArrays & Strings
3
0
42 people solved
Apr 28, 2026
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