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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
333
Companies
980
Updated
11.06.2026
333 Questions 980 Companies11.06.2026
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
Meta logo
MetaBloombergAmazon

Also asked at Amazon, Google, Microsoft

Easy
Software Engineer

Count Complete Rows in a Coin Staircase

Count Complete Rows in a Coin Staircase Build rows of coins in order, using exactly i coins in row i, beginning with row one. Given n coins, return th...

Coding & AlgorithmsMath & Number TheoryBinary Search
0
0
6 people solved
Microsoft logo
MicrosoftAmazonMeta

Also asked at Meta, Google, CleverTap, IBM, Bloomberg, Oracle, PayPal, Expedia, Deshaw, Agoda

Medium
Software Engineer

Smallest Divisor Meeting a Rounded-Sum Limit

Problem Choose a positive integer divisor d. Divide every nums value by d, round each quotient upward to an integer, then sum them. Return the smalles...

Coding & AlgorithmsBinary SearchMath & Number Theory
1
0
12 people solved
Uber logo
Uber
Medium
Software Engineer

Solve 12 coding interview problems

Below are multiple independent coding problems. --- Problem 1: Reduce an integer to 0 with \(\pm 2^i\) You are given a positive integer \(n\). In one ...

Coding & AlgorithmsDynamic ProgrammingBinary Search
372
0
3900 people solved
Feb 12, 2026
Vercel logo
Vercel
Medium
Software Engineer Locked

Count Hits in the Past Five Minutes

Implement a five-minute hit counter with ordered timestamped operations, repeated hits, and an explicit 300-second expiration boundary.

Coding & AlgorithmsData Structure DesignStacks & Queues
10
0
85 people solved
Sep 12, 2026
Goldman Sachs logo
Goldman Sachs
Easy
Software Engineer Locked

Minimum Starting Health to Cross a Grid Moving Only Right or Down

Given a grid of damage and healing values, find the smallest positive starting health that lets a traveler move only right or down from the top-left c...

Coding & AlgorithmsDynamic Programming
9
0
126 people solved
Sep 13, 2026
Uber logo
Uber
Medium
Software Engineer

Robot Grid Route with Charging Cells: Fewest Charges, Then Battery, Then Moves

A robot must travel across a 2D grid from a starting cell to a destination cell. Each cell of the grid is one of these characters: - S: the starting c...

Coding & AlgorithmsGraphsGrids & Matrices
2
0
43 people solved
Jun 12, 2026
Together AI logo
Together AI
Medium
Software Engineer

Historical Lookups in a Timestamped Key-Value Store

Implement a timestamped key-value store and answer historical lookups. A lookup for a key at time t returns the value written at the greatest timestam...

Coding & AlgorithmsData Structure DesignBinary Search
14
0
100 people solved
Apr 19, 2026
Google logo
Google
Hard
Software Engineer

Place New Stations to Minimize the Widest Gap

Problem stations contains strictly increasing positions on the x-axis. Add exactly k stations at arbitrary real positions, including noninteger positi...

Coding & AlgorithmsBinary SearchMath & Number Theory
1
0
20 people solved
Waymo logo
Waymo
Medium
Software Engineer Locked

Character at a Position in a Run-Length Encoded String Without Decoding

Given a run-length encoded string such as B1A2E3C1, return the character at each queried position of the decoded sequence without decoding it. Runs ca...

Coding & AlgorithmsBinary SearchArrays & Strings
7
0
56 people solved
Sep 10, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Minimum Ship Capacity to Deliver Ordered Packages Within a Day Limit

A line of packages waits at a dock, and a ship must carry all of them to their destination. The ship makes one trip per day and has a fixed weight cap...

Coding & AlgorithmsBinary Search
1
0
25 people solved
Aug 4, 2026
Jain Global logo
Jain Global
Easy
Data Scientist Locked

Python Internals: How dict Works, When Not to Use It, and NumPy Arrays vs Lists

Two Python fundamentals from a systematic trading screen: explain how a Python dict is implemented under the hood and which scenarios it is poorly sui...

Software Engineering FundamentalsProgramming LanguagesMemory Management
2
0
27 people solved
Sep 4, 2026
Google logo
GoogleAmazonYandex

Also asked at Yandex, Meta, Bloomberg, DoorDash, Microsoft, Apple, LinkedIn, Coupang, Flipkart, TikTok, Uber, Salesforce, Cashfree

Medium
Software Engineer

Select the K Closest Sorted Values with Smaller-Value Ties

Problem From sorted arr return the k values closest to x, retaining repeated occurrences and sorting the output ascending. Compare absolute distance f...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
11 people solved
MongoDB logo
MongoDB
Medium
Software EngineerSenior+

Timestamped key-value store: return each key's latest value at or before a query time

Implement a key-value store that keeps every version of a value. Setting a key records a value at a given timestamp; reading a key at a timestamp retu...

Coding & AlgorithmsData Structure DesignBinary Search
3
0
30 people solved
Jul 12, 2026
Visa logo
Visa
Medium
Software EngineerSenior+

Find the Index of a Target in a Sorted Array of Distinct Integers

Given an array nums of distinct integers sorted in strictly increasing order and an integer target, return the position of target in nums. If target i...

Coding & AlgorithmsBinary Search
4
2
34 people solved
Aug 6, 2026
Apple logo
Apple
Medium
Software Engineer Locked

Find the K Closest Pairs in a Sorted Array

Implement k_closest_pairs(nums, k) for a strictly increasing sorted array. Work through the function contract, boundary cases, correctness argument, a...

Coding & AlgorithmsHeaps & Priority Queues
15
2
253 people solved
Aug 9, 2026
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Goldman Sachs, Meta, Flipkart, Salesforce

Medium
Software Engineer

Maximize the Smallest Separation

Problem There are baskets at the distinct coordinates in position. Place exactly m balls, at most one in each basket. The separation of two balls is t...

Coding & AlgorithmsBinary SearchGreedy
0
0
8 people solved
Microsoft logo
MicrosoftAmazonMeta

Also asked at Meta, Google, Spotify, DoorDash, Apple, Datadog, Snapchat

Medium
Software EngineerSenior+

Median of Every Fixed-Length Sliding Window in an Integer Array

Given an integer array nums and a window length k, slide a window of exactly k consecutive elements across the array from left to right, one position ...

Coding & AlgorithmsHeaps & Priority QueuesTwo Pointers & Sliding Window
2
1
27 people solved
Valon logo
Valon
Medium
Software Engineer

Build a staged banking service: ATM cash, statements, transfers, fees, slow transfers

Build a banking service in five parts, adding one capability per part. Each part comes with a sample input file of actions and the expected output, an...

Software Engineering FundamentalsLow-Level Design (OOP)Payments & Ledgers
3
0
74 people solved
Jan 16, 2026
Amazon logo
Amazon
Hard
Software EngineerIntern

Find the Largest Rating Threshold Supported by K Instances

Given an array of integer instance ratings, return the largest integer k such that at least k instances have ratings greater than or equal to k. Input...

Coding & AlgorithmsArrays & StringsSorting
4
0
72 people solved
Jan 8, 2026
Google logo
GoogleLinkedInMeta

Also asked at Meta, Amazon, Bloomberg, TCS

Easy
Software Engineer

Find the Next Strictly Larger Letter with Wraparound

Problem letters is sorted in nondecreasing order. Return its smallest letter strictly after target alphabetically. If none is larger, wrap to letters[...

Coding & AlgorithmsBinary Search
1
0
13 people solved
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