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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
Bloomberg logo
BloombergInfosysGoogle

Also asked at Google, Microsoft, Amazon

Medium
Software Engineer

Minimize Single-Character Deletions to Equalize Two Words

Problem Return the fewest deletions needed to make word1 and word2 equal. One step deletes exactly one character from either word; insertions and repl...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
17 people solved
Optiver logo
Optiver
Medium
Software Engineer Locked

Fastest Rolling One-Kilometer Average Speed from 5-Second Distance Samples

Given the meters a runner covers in each 5-second interval, find the fastest average speed over a rolling one-kilometer stretch, defined as the shorte...

Coding & AlgorithmsTwo Pointers & Sliding Window
8
0
110 people solved
Sep 13, 2026
Google logo
GoogleAmazonMeta

Also asked at Meta, Bloomberg, TCS, Microsoft, Arista Networks, NVIDIA, Salesforce, Infosys, Apple, IBM, Goldman Sachs, Zoho, Revolut

Easy
Software Engineer

Find the Missing Value in a Complete Integer Range

Find the Missing Value in a Complete Integer Range An array nums contains n distinct integers chosen from the inclusive range [0, n]. Exactly one valu...

Coding & AlgorithmsMath & Number TheoryBit Manipulation
1
0
12 people solved
Capital One logo
Capital One
Hard
Machine Learning Engineer Locked

Count Pairs of Numbers That Become Equal After at Most One Digit Swap

Given a list of integers, count the index pairs whose values are equal or become equal after swapping two digits inside one of the two numbers, where ...

Coding & AlgorithmsArrays & Strings
4
0
80 people solved
Sep 3, 2026
Infosys logo
InfosysJPMorgan ChaseAmazon

Also asked at Amazon, Google, IBM, Meta, Microsoft, Bloomberg, Salesforce

Easy
Software Engineer

Load a Truck with the Most Units

Problem Each row of boxTypes gives a number of available boxes and the units contained in each box of that type. The truck holds at most truckSize box...

Coding & AlgorithmsGreedySorting
1
0
16 people solved
Google logo
GoogleAmazonMeta

Also asked at Meta, Bloomberg, Microsoft, TCS, Arista Networks, Netflix, Accenture, Adobe, Zoho, Airbnb, OnlyFans

Easy
Software Engineer

Detect Equal Values within an Index Radius

Problem Return whether two different array positions hold equal values and are at most k indices apart. Both value equality and the index-distance bou...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
0
0
15 people solved
Netflix logo
Netflix
Easy
Machine Learning EngineerIntern Locked

Multiply Two Sparse Integer Matrices Given as Dense Grids

Given two integer matrices stored as dense lists of rows in which most entries are zero, return their exact matrix product. It tests handling matrix d...

Coding & AlgorithmsGrids & Matrices
12
0
106 people solved
Sep 11, 2026
Vercel logo
Vercel
Medium
Software Engineer Locked

Search Recorded Metrics by Name, Tags, and Recency

Record metrics and return the newest matches for name-and-tag searches, with explicit tag matching, timestamp ties, duplicates, and result limits.

Coding & AlgorithmsArrays & StringsSorting
10
0
156 people solved
Aug 27, 2026
Capital One logo
Capital One
Medium
Software Engineer

Find the Top-Left Submatrix Matching a Grid Pattern With Letter Variables

You are given a matrix of integers and a pattern grid with p rows and q columns. Each pattern cell is either a number, which must equal the matrix val...

Coding & AlgorithmsGrids & Matrices
6
0
58 people solved
Aug 4, 2026
Amazon logo
Amazon
Medium
Software Engineer

Find All Words Formed by Concatenating Two or More Shorter Words in the List

You are given a list of distinct words. A word is composite if it can be split into two or more consecutive pieces such that every piece is itself a w...

Coding & AlgorithmsDynamic ProgrammingString Algorithms
6
1
98 people solved
Oct 1, 2026
Apple logo
Apple
Medium
Software Engineer

Solve 15 common Apple coding questions

The post summarizes high-frequency coding problems reported for Apple Software Engineer interviews. Practice the following algorithm and data-structur...

Coding & AlgorithmsTwo Pointers & Sliding Window
118
0
875 people solved
Jan 30, 2026
Moveworks logo
Moveworks
Medium
Software Engineer

Shortest Substring of Each String That Appears in No Other String

You are given an array of strings. For each string, find its shortest substring that does not occur in any other string of the array. The Rules below ...

Coding & AlgorithmsArrays & StringsString Algorithms
2
0
40 people solved
Jun 11, 2026
Coupang logo
Coupang
Medium
Software Engineer Locked

Anagram Group Tracker with Add, Remove, and Largest-Group Queries: Read vs Write Trade-offs

Coding and design question: build a structure that supports adding words, removing words, and returning the current largest anagram group using only t...

Software Engineering FundamentalsData Structure DesignHeaps & Priority Queues
4
0
49 people solved
Aug 27, 2026
Salesforce logo
Salesforce
Medium
Software EngineerSenior+

Solve Two OA Coding Problems

The online assessment included two coding problems: 1. In-place character run compression - You are given an array of characters. - Compress con...

Coding & AlgorithmsGreedyArrays & Strings
67
0
453 people solved
Apr 5, 2026
Amazon logo
AmazonLyftMicrosoft

Also asked at Microsoft, Google, Meta, Bloomberg, Infosys, Snowflake, LinkedIn, TikTok, Adobe, Oracle, IBM, Snapchat, Salesforce, Goldman Sachs, SoFi

Hard
Software Engineer

Find the Shortest Substring Covering Required Characters

Problem Find the shortest contiguous substring of text that contains every character required by needed, respecting how many times each character occu...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
13 people solved
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Rebalance Experiment Buckets with Minimal Reassignment

Rebalance experiment buckets to exact target percentages while retaining as many existing assignments as the contract allows. The challenge focuses on...

Coding & AlgorithmsArrays & Strings
16
0
263 people solved
Jul 23, 2026
Goldman Sachs logo
Goldman SachsAmazon
Easy
Software Engineer

Average Each Student's Five Highest Scores

Problem Each pair in items contains a student ID and one score. For every student, sum their five highest scores and divide by 5 using integer divisio...

Coding & AlgorithmsSortingHeaps & Priority Queues
1
0
16 people solved
Google logo
GooglePalo Alto NetworksBloomberg

Also asked at Bloomberg, Citadel, Confluent, Microsoft, Squarepoint

Hard
Software Engineer

Seat Every Couple Together with Minimum Swaps

Problem The 2n entries of row are distinct person IDs. Couples are (0,1), (2,3), and so forth. Seats are grouped as consecutive pairs (0,1), (2,3), et...

Coding & AlgorithmsGraphsGreedy
1
0
18 people solved
Meta logo
MetaGoogleBloomberg

Also asked at Bloomberg, Amazon, Microsoft, Snapchat, TikTok, Apple, Oracle, GE Digital, Rubrik, Millennium

Medium
Software Engineer

Remove the Fewest Parentheses to Restore Validity

Problem Remove as few parentheses as possible from s so the parentheses in the result are balanced: every prefix has at least as many opening as closi...

Coding & AlgorithmsStacks & QueuesGreedy
1
0
18 people solved
Anthropic logo
Anthropic
Hard
Software Engineer Locked

Implement a Longest-Match Tokenizer

Implement a case-sensitive longest-match tokenizer that emits token IDs with the exact consumed text. Support per-character or coalesced unknown runs,...

Coding & AlgorithmsString AlgorithmsParsing & Interpreters
59
1
398 people solved
Jul 8, 2026
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