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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
509
Companies
980
Updated
11.08.2026
509 Questions 980 Companies11.08.2026
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
Atlys logo
Atlys
Medium
Software Engineer

Design a Splitwise-Style Expense Splitter with Minimum-Transaction Debt Settlement

Design a shared-expense app in the style of Splitwise. Members of a group record expenses that one person paid on behalf of several people, the app ke...

Software Engineering FundamentalsLow-Level Design (OOP)API Design
8
0
72 people solved
Oct 18, 2026
Squarepoint logo
Squarepoint
Medium
Data Scientist

Count Ways to Reach Step n With a Given Set of Step Sizes

You are climbing a staircase with n steps, starting on the ground (step 0). Every move offers the same set of choices: you pick one of the allowed ste...

Coding & AlgorithmsDynamic Programming
12
0
145 people solved
Sep 10, 2026
Google logo
GoogleBloombergMeta

Also asked at Meta, Microsoft, Amazon, Swiggy, Salesforce, JPMorgan Chase, Meesho, TCS, Zoho, Coupang

Hard
Software Engineer

Count Position-Distinct Subsequences Matching a Target

Problem Count the distinct subsequences of s whose characters form t. A subsequence chooses increasing positions from s; the chosen characters need no...

Coding & AlgorithmsDynamic Programming
3
0
23 people solved
Waymo logo
Waymo
Medium
Software Engineer Locked

Insert +, -, * and Parentheses Between Ordered Numbers to Reach a Target

Given numbers in a fixed order and a target, insert +, - or * between them and add parentheses to reach the target, returning the lexicographically sm...

Coding & AlgorithmsBacktracking & Recursion
15
0
160 people solved
Sep 10, 2026
IBM logo
IBM
Easy
Software Engineer Locked

Find the Minimum Shared Increment on Nonadjacent Array Positions

Choose nonadjacent indices for one common nonnegative increment to make an array nondecreasing, or determine that no operation can succeed.

Coding & AlgorithmsArrays & Strings
31
1
223 people solved
Sep 15, 2026
Applied Intuition logo
Applied Intuition
Medium
Software Engineer

Protobuf-Style Schema: Look Up Message Sizes and Field Types, Then Parse the Schema

Implement a small schema service for a simplified Protocol Buffers (protobuf) style schema language. A schema defines named messages. Each message has...

Software Engineering FundamentalsParsing & InterpretersGraphs
10
0
70 people solved
Sep 9, 2026
Oscar logo
Oscar
Hard
Software EngineerSenior+ Locked

Longest Chain of Linked Names in a Directed Acyclic Graph

A graph coding question: given directed pairs of names that together form an acyclic graph, return the number of names in the longest chain that follo...

Coding & AlgorithmsGraphsDynamic Programming
4
0
73 people solved
Sep 21, 2026
Virtu Financial logo
Virtu FinancialPinterestAmazon

Also asked at Amazon, Salesforce, Goldman Sachs, Google, Uber, Zscaler, Microsoft, Citadel, Intuit, Affirm

Hard
Quantitative Researcher

Minimum Number of Transfers to Settle All Debts in a Group

A group of people have lent money to each other. Each record transactions[i] = [x, y, amount] means that person x gave amount to person y. The group n...

Coding & AlgorithmsBacktracking & Recursion
5
0
63 people solved
Goldman Sachs logo
Goldman Sachs
Medium
Quantitative Researcher

Count Ways to Climb n Stairs Using One-Step and Two-Step Moves

You stand at the bottom of a staircase with n steps. Each move climbs either one step or two steps. Count the number of distinct ways to reach the top...

Coding & AlgorithmsDynamic Programming
5
0
43 people solved
Sep 25, 2026
Goldman Sachs logo
Goldman Sachs
Medium
Quantitative Researcher

Minimum-Cost Round Trip Visiting Every City Once with Asymmetric Costs

A salesperson must visit n cities. The cost of traveling directly from city i to city j is dist[i][j], and every city can be reached directly from eve...

Coding & AlgorithmsDynamic ProgrammingBit Manipulation
2
0
34 people solved
Sep 25, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Find List Words Formed by Joining Two or More Other Words From the List

Given a list of distinct lowercase words, return every word in the list that can be formed by joining two or more words from the same list end to end....

Coding & AlgorithmsString AlgorithmsDynamic Programming
0
0
11 people solved
Oct 24, 2026
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Microsoft, Bloomberg, Amagi, Visa, Zoho, TikTok, LinkedIn, IBM, Uber, Nike, Nykaa, Infosys, Oracle, Deshaw

Hard
Software Engineer

Longest Balanced Parentheses Substring

Problem You receive a string brackets whose characters are all ( or ). Return the greatest length of a contiguous substring that forms a well-formed p...

Coding & AlgorithmsStacks & QueuesArrays & Strings
3
0
25 people solved
Microsoft logo
MicrosoftAmazonGoogle

Also asked at Google, Meta, Infosys, Revolut, Bloomberg, PayPal, TikTok, Samsung, Square, Oracle, TCS, Walmart Labs, Intuit, NVIDIA, Salesforce, Huawei

Medium
Software Engineer

Measure a Strictly Increasing Subsequence

Problem Return the maximum length of a strictly increasing subsequence of nums. A subsequence preserves index order but need not use consecutive posit...

Coding & AlgorithmsDynamic ProgrammingBinary Search
2
0
23 people solved
Pinterest logo
Pinterest
Hard
Software Engineer Locked

Insert Plus or Times Between Ordered Numbers to Reach a Target, Evaluated Left to Right

Decide whether placing a plus or times operator between every pair of adjacent numbers, kept in their original order, can produce a target value when ...

Coding & AlgorithmsBacktracking & Recursion
7
0
106 people solved
Sep 2, 2026
Google logo
GoogleAmazonMeta

Also asked at Meta, Microsoft, Bloomberg, Infosys, Intuit, TCS, Zoho, Grammarly, Accenture, TikTok, Apple, Oracle, Goldman Sachs, Cognizant, Agoda, Media.net

Easy
Software Engineer

Count Ordered One-Step and Two-Step Climbs

Problem A staircase has steps steps. On each move you climb either one step or two steps. Return the number of different move sequences that land exac...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
2
0
24 people solved
Google logo
GoogleAmazonInfosys

Also asked at Infosys, Meta, Microsoft, Bloomberg, Snapchat, Apple, Tekion, TikTok, Goldman Sachs, Visa, PayPal

Hard
Software Engineer

Maximize Profit with at Most Two Chronological Trades

Problem Given chronological stock prices, return the greatest profit obtainable with at most two completed buy/sell transactions. Hold at most one sha...

Coding & AlgorithmsDynamic Programming
2
0
21 people solved
Google logo
GoogleAmazoneBay

Also asked at eBay, Microsoft, PayPal, Meta, Oracle, ByteDance, NVIDIA, PhonePe, Karat, Wise, Bloomberg

Medium
Software Engineer

Measure the Largest All-One Square Area

Problem Find the largest square whose cells are all character '1' in a rectangular binary matrix, and return its area. Cells containing character '0' ...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
1
0
21 people solved
SIG (Susquehanna) logo
SIG (Susquehanna)
Medium
Quantitative ResearcherIntern

Find the Probability That Ten Dice Sum to a Multiple of Seven

Ten dice are rolled, and a win occurs when their total is divisible by seven. How would you compute the probability of winning? Constraints and Clarif...

Statistics & MathProbabilityDynamic Programming
2
0
21 people solved
Sep 28, 2026
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Infosys, Meta, Databricks, Microsoft, TikTok, LinkedIn, Datadog, Deshaw, ServiceNow, DocuSign, Salesforce, MakeMyTrip

Medium
Software Engineer

Maximize a Nonadjacent Selection around a Circle

Problem Select nonadjacent houses to maximize the collected total when the houses form a circle. The first and last houses are neighbors, so they cann...

Coding & AlgorithmsDynamic Programming
1
0
20 people solved
Hudson River Trading logo
Hudson River Trading
Medium
Data Scientist Locked

Count Smaller Numbers with Only Zero and One in Base Four

Count positive integers below a strict upper bound whose base-4 representation contains only zeros and ones, without scanning every smaller integer.

Coding & AlgorithmsMath & Number TheoryDynamic Programming
7
0
129 people solved
Sep 9, 2026
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