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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
435
Companies
980
Updated
11.12.2026
435 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
Pinterest logo
Pinterest
Medium
Machine Learning Engineer Locked

Solve five hard algorithm problems

This set of problems evaluates algorithm design and problem-solving skills across array manipulation, range-update techniques, load-balancing and part...

Coding & AlgorithmsArrays & StringsGreedy
10
0
159 people solved
Mar 8, 2026
Google logo
GoogleAmazonMeta

Also asked at Meta, Bloomberg, Microsoft

Medium
Software Engineer

Remove as Many Target-Sum Pairs as Possible

Problem One operation removes two distinct occurrences from nums whose values sum to k. Each occurrence can be removed only once. Return the maximum n...

Coding & AlgorithmsArrays & Strings
1
0
9 people solved
NVIDIA logo
NVIDIA
Medium
Software Engineer Locked

Solve small string and API tasks

This question evaluates proficiency in string algorithms (bracket validation and longest non-repeating substring) and practical API skills including H...

Coding & AlgorithmsStacks & QueuesAPI Integration & HTTP Clients
14
0
185 people solved
Feb 9, 2026
NVIDIA logo
NVIDIA
Hard
Software Engineer Locked

Implement short algorithms on logs, grids, and strings

This multi-part Coding & Algorithms question evaluates algorithmic problem-solving skills and mastery of core competencies including temporal window r...

Coding & AlgorithmsArrays & Strings
24
0
245 people solved
Feb 11, 2026
Amazon logo
AmazonGoogleMicrosoftBloomberg

Also asked at Microsoft, Bloomberg

Easy
Software Engineer

Reverse Through the First Matching Character

Problem Reverse the prefix of word from index 0 through the first occurrence of ch, including that occurrence. Leave every later character unchanged. ...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
Bloomberg logo
Bloomberg
Medium
Software Engineer

Find invalid transactions in time-sorted input

Problem You are given a list of transaction records, already sorted in non-decreasing order by time. Each transaction is a string in the form: "name,t...

Coding & AlgorithmsTwo Pointers & Sliding Window
59
1
433 people solved
Dec 15, 2025
Bloomberg logo
BloombergAmazonGoogleMeta

Also asked at Google, Meta

Medium
Software Engineer

Check Whether Bounded Jumps Reach the Final Index

Problem Start at index zero of binary string s, whose first character is zero. From i you may jump to a zero-valued position j satisfying i+minJump <=...

Coding & AlgorithmsDynamic ProgrammingTwo Pointers & Sliding Window
0
0
10 people solved
Google logo
GoogleBloomberg
Easy
Software Engineer

Return the Least Value Present in Both Sorted Arrays

Problem Given positive integer arrays nums1 and nums2, both sorted in nondecreasing order, return the smallest value occurring in both. One occurrence...

Coding & AlgorithmsTwo Pointers & Sliding WindowBinary Search
1
0
9 people solved
Vercel logo
Vercel
Medium
Software Engineer

Design hit counter for last 5 minutes

You are launching a new webpage and need a last-minute server-side metric to track popularity in real time. Implement a hit counter that supports the ...

Coding & AlgorithmsData Structure DesignStacks & Queues
34
0
240 people solved
Jan 1, 2026
Infosys logo
InfosysAmazonMeta
Medium
Software Engineer

Return the Negative x-th Order Statistic of Every Fixed Window

Problem For each contiguous length-k window in nums, its beauty is its x-th smallest value if that value is negative; otherwise its beauty is zero. Re...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
9 people solved
NVIDIA logo
NVIDIA
Medium
Software Engineer

Solve unique triplets summing to target

Solve unique triplets summing to target Implement a function that, given an integer array nums and an integer target T, returns all unique triplets [x...

Coding & AlgorithmsTwo Pointers & Sliding WindowSorting
12
0
190 people solved
Jul 15, 2025
Faire logo
Faire
Medium
Software Engineer

Find first 5-7-5 haiku in sentence

Find first 5-7-5 haiku in sentence Given a sentence containing mixed case and punctuation, and a syllable dictionary mapping lowercase words to their ...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
44
0
338 people solved
Jul 28, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Simulate pouring water onto a 1D terrain

You are given a 1D terrain represented by an integer array heights, where heights[i] is the height of the column at index i. Part 1 — Render terrain W...

Coding & AlgorithmsSimulation & State Machines
50
0
362 people solved
Oct 28, 2025
Goldman Sachs logo
Goldman Sachs
Easy
Software Engineer Locked

Search for a Target in a Matrix Sorted by Rows and Columns

Decide whether a target value appears in an integer matrix whose rows and columns are each sorted in non-decreasing order. It tests how well a candida...

Coding & AlgorithmsGrids & Matrices
9
0
71 people solved
Sep 13, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Apply sliding window techniques

Apply sliding window techniques Explain the sliding window technique and apply it to solve: ( 1) Given an array of positive integers and a target S, r...

Coding & AlgorithmsTwo Pointers & Sliding Window
18
0
189 people solved
Aug 7, 2025
Remitly logo
Remitly
Easy
Software Engineer

Compute transfers to balance account debts

Problem: Balance accounts by generating transfers You are given a dictionary/map balances from accountId -> netBalance. - A positive balance means the...

Coding & AlgorithmsGreedyTwo Pointers & Sliding Window
17
0
207 people solved
Nov 30, 2025
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Meta, Microsoft

Medium
Software Engineer

Count Subarrays with at Least k Occurrences of the Global Maximum

Count Subarrays with at Least k Occurrences of the Global Maximum You are given an integer array nums and a positive integer k. Let M be the maximum v...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
11 people solved
Google logo
Google
Medium
Software Engineer

Find the Latest Unoccupied Arrival Time That Still Boards a Bus

Problem Buses depart at the distinct times in buses, each taking at most capacity waiting passengers in increasing arrival-time order. Existing distin...

Coding & AlgorithmsTwo Pointers & Sliding WindowSimulation & State Machines
0
0
8 people solved
Anthropic logo
Anthropic
Medium
Software Engineer

Simulate stack traces from logs

Given a list of log entries describing function calls, each formatted as "<id> <event> <timestamp>" where event ∈ {START, END} and timestamps are inte...

Coding & AlgorithmsStacks & Queues
71
0
652 people solved
Sep 6, 2025
Roblox logo
Roblox
Medium
Data Scientist

Implement streaming CTR with deduplication

Implement a Python function to compute streaming, per-campaign CTR over a sliding 24-hour window with click de-duplication and late-arriving events. R...

Coding & AlgorithmsBatch & Stream ProcessingArrays & Strings
14
0
143 people solved
Oct 13, 2025
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