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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
Squarepoint logo
Squarepoint
Easy
Quantitative ResearcherNew Grad

Newton's Method Root Finder and a Stopping Rule That Guarantees the Requested Tolerance

In a HackerRank coding exercise, implement a function that finds a root of a given function to a requested tolerance tol, using Newton's method. The i...

Statistics & MathMath & Number Theory
0
0
11 people solved
Nov 2, 2026
Snorkel logo
Snorkel
Medium
Software Engineer Locked

Design SnapshotMap with Sparse Histories and Constant-Time Snapshots

Design SnapshotMap with constant-time snapshots, sparse per-key histories, binary-search reads, tombstones, write coalescing, and precise complexity g...

Software Engineering FundamentalsData Structure DesignBinary Search
20
1
138 people solved
Sep 6, 2026
Snapchat logo
Snapchat
Medium
Machine Learning Engineer

Find a Strictly Unimodal Array Peak and Analyze Plateaus

An array strictly increases up to a unique maximum and strictly decreases afterward. Return the index of that peak using binary search. Constraints an...

Coding & AlgorithmsBinary Search
1
0
15 people solved
Oct 28, 2026
Citadel Securities logo
Citadel Securities
Hard
Software Engineer

Approximate a Square Root and Clarify the Integer Follow-up

Write a function that computes the square root of a nonnegative number using basic arithmetic and comparisons. Then explain what changes if the input ...

Coding & AlgorithmsBinary SearchMath & Number Theory
1
0
16 people solved
Oct 19, 2026
Circle logo
Circle
Medium
Software Engineer Locked

In-Memory Bank System With Top-N Activity Ranking and Expiring Pending Transfers

Implement an in-memory banking class in stages: create accounts, deposit and pay, rank the top n accounts by transaction activity, and support transfe...

Software Engineering FundamentalsData Structure Design
14
0
141 people solved
Sep 4, 2026
Glean logo
Glean
Medium
Software Engineer

Find the k-th Largest Value Across Two Sorted Arrays Without Fully Merging Them

You are given two integer arrays a and b, each sorted in non-decreasing order, and an integer k. Return the k-th largest value in the combined collect...

Coding & AlgorithmsBinary Search
4
0
60 people solved
Sep 30, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Minimize the Largest Value When Picking at Least k Non-Adjacent Houses

A row of houses stands along a street, and nums[i] is the amount of money in house i. A robber will rob at least k houses but never two adjacent house...

Coding & AlgorithmsBinary SearchGreedy
16
0
197 people solved
Sep 7, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer

Count Subsequences Whose Minimum Plus Maximum Stays Within a Target

Given an integer array nums and an integer target, count the non-empty subsequences of nums whose smallest element plus largest element is at most tar...

Coding & AlgorithmsTwo Pointers & Sliding WindowMath & Number Theory
5
0
43 people solved
Oct 4, 2026
Google logo
Google
Medium
Software Engineer

Mouse-to-Cheese Grid Path That Maximizes the Minimum Distance to a Cat

You are given an N x N grid that contains a mouse's starting cell S, a piece of cheese at T, a cat at C, water cells and land cells. The mouse moves o...

Coding & AlgorithmsGrids & MatricesGraphs
17
1
248 people solved
Sep 17, 2026
Google logo
GoogleMetaAmazon

Also asked at Amazon, Bloomberg, Adobe, Microsoft, TCS, Infosys, Apple, TikTok, Uber, Goldman Sachs, Samsung, IXL Learning, NVIDIA, PayPal, Oracle, ByteDance, Visa

Medium
Software Engineer

Return Any Strict Peak Index in Logarithmic Time

Problem Find any peak in a zero-indexed array and return its index. A peak is strictly greater than each adjacent in-bounds value. Treat the conceptua...

Coding & AlgorithmsBinary Search
4
0
26 people solved
Oracle logo
Oracle
Medium
Software Engineer

Count requests dropped by stacked 1-, 10- and 60-second rate limits

A gateway enforces three rate limits at once: at most 3 requests in any one second, at most 20 requests in any 10-second span, and at most 60 requests...

Coding & AlgorithmsTwo Pointers & Sliding WindowRate Limiting
1
0
14 people solved
Oct 29, 2026
Google logo
Google
Medium
Software Engineer

Choose Non-Overlapping Weighted Jobs to Maximize Total Profit

You are given n jobs. Job i starts at start_time[i], ends at end_time[i], and earns profit[i] if you take it. You may take any set of jobs as long as ...

Coding & AlgorithmsDynamic ProgrammingIntervals & Scheduling
15
0
140 people solved
Sep 17, 2026
Asana logo
Asana
Medium
Software Engineer

Pick the K Values Nearest a Target in a Sorted Integer Array

You are given an integer array arr sorted in non-decreasing order, an integer k, and a target integer x. Return the k elements of arr that are closest...

Coding & AlgorithmsBinary SearchTwo Pointers & Sliding Window
6
0
55 people solved
Sep 10, 2026
Visa logo
Visa
Hard
Software EngineerSenior+

Minimize Completion Time with Specialized Workers

There are n workers and m tasks. Each task has one designated proficient worker. That worker takes one hour to perform it; any other worker takes two ...

Coding & AlgorithmsBinary SearchIntervals & Scheduling
1
0
16 people solved
Oct 17, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Debug a round-robin load balancer, then extend it to consistent hashing

In a debugging round you receive a small round-robin load balancer, which hands out the servers of a pool in turn, together with test cases that it cu...

Software Engineering FundamentalsDebuggingPartitioning & Consistent Hashing
0
0
7 people solved
Oct 28, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

GPU Credit Ledger with Expiring Grants, Out-of-Order Operations and Fast Balances

Implement a GPU credit ledger with expiring grants, subtractions that spend the soonest-expiring credits first, and balance queries, where operations ...

Software Engineering FundamentalsData Structure DesignHeaps & Priority Queues
11
0
107 people solved
Sep 20, 2026
Waymo logo
Waymo
Medium
Software Engineer Locked

Implement an ObjectTracker That Merges Observations From Two Perception Systems

Two perception systems track the same objects under different IDs. Implement an ObjectTracker with addLink, addObservation and getHistory that returns...

Software Engineering FundamentalsData Structure DesignGraphs
4
0
66 people solved
Sep 10, 2026
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Bloomberg, TCS, Microsoft, Oracle, Infosys, TikTok, Yandex, LinkedIn, Goldman Sachs, Grammarly, Walmart Labs, NVIDIA, Zoho, PayPal, NewsBreak, Apple, Autodesk

Medium
Software Engineer

Search a Rotated Increasing Array

Problem You receive an integer array values and an integer key. The array was originally in strictly increasing order. It may have been left unchanged...

Coding & AlgorithmsBinary Search
1
0
28 people solved
Glean logo
Glean
Medium
Software Engineer

Make k Cuts in a Row of Positive Values to Maximize the Smallest Piece Sum

You are given an array sweetness of positive integers describing consecutive chunks of a bar, and an integer k. Make exactly k cuts to split the bar i...

Coding & AlgorithmsBinary SearchGreedy
5
0
53 people solved
Sep 30, 2026
Waymo logo
Waymo
Medium
Software Engineer Locked

Lowest Horizontal Cut That Splits Square Cakes Into Equal Total Areas

Square cakes sit on a table with sides parallel to its edges; find the lowest horizontal cut line that splits the total cake area equally, returned as...

Coding & AlgorithmsIntervals & SchedulingBinary Search
12
0
97 people solved
Sep 10, 2026
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