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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
Google logo
GoogleBloombergAmazon

Also asked at Amazon, Microsoft, Meta, TCS

Easy
Software Engineer

Maximize the Children Satisfied by Cookies

Maximize the Children Satisfied by Cookies You have children with minimum acceptable cookie sizes g and cookies with sizes s. Child i is satisfied by ...

Coding & AlgorithmsGreedySorting
0
0
8 people solved
Amazon logo
AmazonBloombergGoogleMeta

Also asked at Google, Meta

Medium
Software Engineer

Longest Uniform Answer Block After Limited Changes

Problem The string answerKey contains only T and F. You may change at most k positions to either symbol. Return the largest length of a contiguous blo...

Coding & AlgorithmsTwo Pointers & Sliding Window
0
0
10 people solved
Verkada logo
Verkada
Medium
Software Engineer

Merge Sorted Arrays In Place

You are given two non-decreasing integer arrays. - A has length m + n. - The first m elements of A are valid sorted numbers. - The last n elements of ...

Coding & AlgorithmsSortingTwo Pointers & Sliding Window
22
0
206 people solved
Apr 2, 2026
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Morgan Stanley, UST

Medium
Software Engineer

Reduce a Target by Removing Array Ends

Problem In each operation, remove the current leftmost or rightmost element of nums and subtract that element from x. The removal changes which elemen...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
8 people solved
Google logo
GoogleBloombergAmazon
Easy
Software Engineer

Construct a Permutation Matching Consecutive Increase and Decrease Signs

Problem For n = s.length, return any permutation of all integers0 through n whose adjacent comparisons match s. An I requires perm[i] < perm[i+1]; a D...

Coding & AlgorithmsGreedyTwo Pointers & Sliding Window
0
0
14 people solved
xAI logo
xAI
Hard
Software Engineer Locked

Find kth element and sliding-window kth in stream

This question evaluates understanding of order statistics and selection in arrays as well as sliding-window stream processing, including maintaining k...

Coding & AlgorithmsSortingData Structure Design
11
0
185 people solved
Jan 22, 2026
Palantir logo
Palantir
Medium
Software EngineerSenior+

Minimum Number of Rooms to Host Overlapping Meetings

You are given a list of meetings, each with a start time and an end time. Every meeting must be held in a room, and a room can host only one meeting a...

Coding & AlgorithmsIntervals & Scheduling
2
0
38 people solved
Jan 30, 2026
Roblox logo
Roblox
Medium
Software Engineer Locked

Implement a Rolling-Window Rate Limiter

Implement a single-process rolling-window rate limiter where only accepted requests consume capacity. Define exact boundary behavior, expire old times...

Software Engineering FundamentalsData Structure DesignRate Limiting
81
2
587 people solved
Jul 13, 2026
Airbnb logo
Airbnb
Medium
Software Engineer

Compute split-stay listing pairs

Given a set of Airbnb listings, each with availability represented as a sorted list of day integers, and a requested inclusive date range [S, E], comp...

Coding & AlgorithmsIntervals & SchedulingBinary Search
81
0
790 people solved
Sep 6, 2025
IBM logo
IBMMetaMathWorks
Easy
Software Engineer

Make a Minimum-Change Palindrome with Lexicographic Tie-Breaking

Make a Minimum-Change Palindrome with Lexicographic Tie-Breaking You are given a string s containing only lowercase English letters. One operation rep...

Coding & AlgorithmsTwo Pointers & Sliding WindowGreedy
0
0
8 people solved
Spotify logo
SpotifyMetaGoogle

Also asked at Google, Amazon, Bloomberg, Microsoft, Arista Networks, Citadel, Qualcomm

Easy
Software Engineer

Maintain a Windowed Moving Average across Stream Calls

Problem Implement MovingAverage(int size) and double next(int val). Each next call appends val and returns the mean of the most recent size values, or...

Coding & AlgorithmsData Structure DesignTwo Pointers & Sliding Window
1
0
16 people solved
Meta logo
Meta
Hard
Software Engineer AI

Solve Two Backtracking Array Problems

You will solve two independent coding problems. For each problem, first discuss edge cases, then implement a correct solution, and finally explain how...

Coding & AlgorithmsBacktracking & RecursionTwo Pointers & Sliding Window
45
0
369 people solved
Apr 27, 2026
Affirm logo
Affirm
Medium
Software Engineer Locked

Aggregate loans and match repayments

This question evaluates the ability to aggregate transactional loan records and match repayment transactions to outstanding loans, testing competencie...

Coding & AlgorithmsArrays & StringsSimulation & State Machines
18
1
233 people solved
Mar 7, 2026
Microsoft logo
MicrosoftNVIDIAWeRide

Also asked at WeRide, UKG, Amazon, Oracle

Medium
Software Engineer

Maximize Strict Wins by Permuting the Same Multiset

Problem Rearrange the entries of nums into a permutation perm of those entries. Its greatness is the number of indices i with perm[i]>nums[i]. Return ...

Coding & AlgorithmsGreedySorting
0
0
7 people solved
Google logo
GoogleMetaMicrosoft

Also asked at Microsoft, Amazon, Bloomberg, IBM, Wells Fargo, Oracle

Easy
Software Engineer

Interleave Two Words Starting with the First

Problem Create a string by alternately taking the next character from word1 and word2, starting with word1. After one word ends, append all remaining ...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
Anduril logo
AndurilGoogleMeta

Also asked at Meta, Bloomberg, Microsoft, Amazon

Medium
Software Engineer

Resolve Simultaneous Left and Right Domino Pushes

Problem dominoes contains L and R for initial left/right pushes and . for upright dominoes. Every second, a falling domino pushes its upright neighbor...

Coding & AlgorithmsSimulation & State MachinesTwo Pointers & Sliding Window
0
0
11 people solved
Fivetran logo
FivetranGoogleAmazon

Also asked at Amazon, Meta, Bloomberg

Medium
Software Engineer

Reschedule Meetings for the Longest Free Period

Problem An event runs from time 0 to time eventTime. During it, n meetings are scheduled in order. Meeting i begins at startTime[i] and ends at endTim...

Coding & AlgorithmsTwo Pointers & Sliding WindowIntervals & Scheduling
0
0
8 people solved
American logo
American
Medium
Software Engineer

Cover the Most Points with an Axis-Aligned Rectangle of Bounded Perimeter

Place an axis-aligned rectangle with perimeter at most P to cover as many supplied two-dimensional points as possible. Function Signature maximum_cove...

Coding & AlgorithmsMath & Number Theory
3
0
31 people solved
Sep 2, 2026
Google logo
GoogleInfosysMongoDB

Also asked at MongoDB, Uber, Amazon, PhonePe, Capital One, Microsoft, Meta, Visa, Salesforce, Yandex

Medium
Software Engineer

Longest Window Whose Largest Pair Difference Meets a Limit

Problem Return the length of the longest nonempty contiguous subarray of nums in which every pair of values differs in absolute value by at most limit...

Coding & AlgorithmsTwo Pointers & Sliding WindowStacks & Queues
0
0
7 people solved
Decagon logo
Decagon
Easy
Software Engineer Locked

Design rolling-window conversation score tracker

This question evaluates a candidate's ability to design efficient data structures and algorithms for time-windowed streaming data, including maintaini...

Coding & AlgorithmsData Structure Design
30
0
359 people solved
Mar 1, 2026
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