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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
Capital One logo
Capital OneVisaUber

Also asked at Uber, Roblox, Amazon, Meta, TikTok

Medium
Software Engineer

Count Equal-Colored Neighbors After Each Recoloring

Count Equal-Colored Neighbors After Each Recoloring An array colors has length n and initially contains only zeros. Zero means that a position is unco...

Coding & AlgorithmsSimulation & State MachinesArrays & Strings
1
0
16 people solved
Microsoft logo
MicrosoftArcesiumExpedia
Medium
Software Engineer

Maximize Total Height in a Mountain of Towers

Maximize Total Height in a Mountain of Towers You are given a 0-indexed array maxHeights of n integers. Choose an integer height heights[i] for the to...

Coding & AlgorithmsStacks & QueuesDynamic Programming
0
0
12 people solved
Microsoft logo
Microsoft
Medium
Software Engineer

Most Frequent Substring Within a Length Range and a Distinct-Letter Limit

Given a string s, consider every substring whose length is between min_length and max_length (inclusive) and that contains at most max_unique distinct...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
3
0
29 people solved
Aug 2, 2026
Amazon logo
AmazonSpotifyWhatnot

Also asked at Whatnot, Google, Uber

Medium
Software Engineer

Most Widely Shared Three-Visit Website Pattern

Problem Parallel arrays username, timestamp and website describe visits. A pattern is an ordered list of three websites, which may repeat. Its score i...

Coding & AlgorithmsArrays & StringsSorting
0
0
12 people solved
Google logo
GoogleAmazonTikTok

Also asked at TikTok, Microsoft, Bloomberg, Meta, Deloitte, eBay

Medium
Software Engineer

Measure the Smallest Segment that Needs Sorting

Problem Return the minimum length of one contiguous segment whose nondecreasing sort would make all of nums nondecreasing. Return zero when nums is al...

Coding & AlgorithmsSortingArrays & Strings
1
0
14 people solved
Amazon logo
AmazonGoogleVisa
Medium
Software Engineer

Clipped Square-Neighborhood Sums for Every Matrix Cell

Problem For every cell(i,j), add all original mat[r][c] with row distance at most k and column distance at most k, keeping only valid matrix positions...

Coding & AlgorithmsGrids & MatricesArrays & Strings
0
0
11 people solved
Amazon logo
AmazonMetaMicrosoft

Also asked at Microsoft, Capital One, Google, IBM

Medium
Software Engineer

Most Satisfied Customers With One Calm Window

Problem For minute i, customers[i] customers arrive and leave that same minute. They are satisfied exactly when grumpy[i] is 0. Once during the day, t...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
9 people solved
Capital One logo
Capital One
Medium
Software Engineer Locked

Count Pairs of Cyclically Equivalent Integers

Count unordered index pairs whose non-negative integers have decimal strings equivalent under cyclic rotation. The algorithm challenge emphasizes a pr...

Coding & AlgorithmsArrays & Strings
14
0
194 people solved
Jul 21, 2026
Google logo
GoogleAmazonMetaZoho

Also asked at Meta, Zoho

Easy
Software Engineer

Replace Each Value by Its Original Suffix Maximum

Problem Replace arr[i] by the largest original value strictly to its right. The final element becomes -1 because it has no right neighbor. Modify the ...

Coding & AlgorithmsArrays & Strings
0
0
8 people solved
Moveworks logo
Moveworks
Medium
Software Engineer

Find a secret word via match feedback

Word Guessing Game (Mastermind-style) You are given a list of unique candidate words wordlist. All words have the same length L and contain only lower...

Coding & AlgorithmsGreedy
16
0
320 people solved
Dec 15, 2025
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Bloomberg, Meta, TCS, JPMorgan Chase, Infosys, Goldman Sachs, Uber, Yandex

Easy
Software Engineer

Maximize the Average of an Exactly K-Length Segment

Problem Return the greatest average among contiguous subarrays of nums containing exactly k elements. Answers with calculation error less than 10^-5 a...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
9 people solved
Google logo
GoogleAmazonPhonePe

Also asked at PhonePe, Meta, Microsoft

Medium
Software Engineer

Remove the Shortest Block to Restore Divisibility

Problem Remove a contiguous block from the positive integer array nums so that the sum left behind is divisible by p. Removing nothing is permitted; r...

Coding & AlgorithmsArrays & StringsMath & Number Theory
1
0
12 people solved
Bloomberg logo
BloombergGoogle
Medium
Software Engineer

Search a Dictionary after Exactly One Character Replacement

Problem Implement MagicDictionary(), buildDict(dictionary), and search(searchWord). The dictionary is built once from distinct lowercase words. search...

Coding & AlgorithmsData Structure DesignArrays & Strings
1
0
13 people solved
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Microsoft, IBM, Infosys, TCS, Goldman Sachs, Arista Networks

Medium
Software Engineer

Erase the Earliest Matching Block Repeatedly

Problem Starting with lowercase string s, repeatedly delete the leftmost occurrence of the nonempty string part. Search the updated string after each ...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
Wayfair logo
Wayfair
Hard
Software Engineer Locked

Maximize the Product of Pair Distance and Minimum Value

Maximize the smaller of two array values times their index distance, using the Container With Most Water objective and returning one deterministic sco...

Coding & AlgorithmsTwo Pointers & Sliding WindowGreedy
7
0
75 people solved
Sep 9, 2026
Google logo
Google
Medium
Software Engineer Locked

Solve Three Array and Matrix Path Problems

This set of three problems evaluates algorithm design, complexity analysis, and data-structure reasoning across matrix path traversal, interval covera...

Coding & AlgorithmsGrids & MatricesDynamic Programming
23
3
299 people solved
May 30, 2026
Google logo
GoogleTaniumMicrosoftAmazon

Also asked at Microsoft, Amazon

Medium
Software Engineer

Can Fixed-Length Jumps Reach a Zero?

Problem Begin at index start of the nonnegative array arr. From index i, the next jump must land at i+arr[i] or i-arr[i], and must stay inside the arr...

Coding & AlgorithmsGraphs
1
0
16 people solved
Infosys logo
Infosys
Hard
Software Engineer

Largest Share from the Circular Pizza Selection Game

Problem The circular slices array has length 3*n. Repeatedly choose any remaining slice for yourself; Alice then takes its immediate remaining anticlo...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
9 people solved
Infosys logo
InfosysGoogleAmazon

Also asked at Amazon, Meta, Microsoft, Zeta Global, Scaler, Bloomberg

Hard
Software Engineer

Minimize Cuts into Palindromic String Pieces

Problem Split a nonempty string into contiguous palindromic pieces using the fewest cuts. Return the number of cuts, not the pieces. With k pieces the...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
16 people solved
Microsoft logo
Microsoft
Hard
Software Engineer

Top k most frequent values with a deterministic tie order

Given a list of integers and a number k, return the k values that occur most often in the list. The report names this problem without further detail; ...

Coding & AlgorithmsHeaps & Priority QueuesSorting
0
0
11 people solved
Aug 5, 2026
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