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

"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_

"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"

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

"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."

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

"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."

CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

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."

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

"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."

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

"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."

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

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

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

_The_TaNk_

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

"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."

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

CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

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."

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

"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."

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

"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."

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

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

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

Rippling

Medium

Software Engineer

Extensible Logger with Pluggable Filter, Truncate, Uppercase and Array Handlers

Build a simple logging utility for an application. The core requirement is that the Logger supports several different log handlers, and that new handl...

Software Engineering FundamentalsLow-Level Design (OOP)

Look Up a Book Title Typed with Missing or Extra Spaces

A library holds a list of book titles. Given a title typed by a user, decide whether that title is in the library. The typed title may have extra spac...

Software Engineering FundamentalsString AlgorithmsDynamic Programming

Machine Learning Engineer Locked

Hand-Written Gradients: Prefix-Product Backward Pass and Stable Cross-Entropy

Write gradients by hand: the forward and backward pass of the prefix-product operation, in linear time and without division so inputs may contain zero...

Machine LearningML CodingArrays & Strings

Dasher Pay from Concurrent Orders with Double-Pay Time Windows

A Dasher (a delivery driver) is paid for the time they spend carrying orders, and the pay grows with the number of orders they carry at once. During a...

Coding & AlgorithmsIntervals & Scheduling

289 people solved

Oct 7, 2026

GoogleAmazonMicrosoft

Medium

Software Engineer

Find All Distinct Four-Value Target Groups

Problem Given the integer array values and integer goal, return all distinct groups of four values whose sum equals goal, using four different positio...

Coding & AlgorithmsTwo Pointers & Sliding WindowSorting

111 people solved

OpenAI

Hard

Software EngineerSenior+

Card Game Program: Rank Three-Card Hands and Print the Winner

Write a program for a card game with 2 to n players. Each player holds 3 cards. A list of rules decides which of two hands is stronger: use the rules ...

Software Engineering FundamentalsLow-Level Design (OOP)Sorting

112 people solved

Oct 14, 2026

GoogleAmazonBloomberg

Hard

Software Engineer

Match an Entire String with Dot and Star

Problem Determine whether the pattern pattern matches all of the string text. Return a boolean result. A pattern element is either a lowercase English...

Coding & AlgorithmsString AlgorithmsDynamic Programming

Count Pairs of Points Within 2 Units on Both Axes

You are given a list of points on a plane with integer coordinates. Two points intersect when their x-coordinates differ by at most 2 and their y-coor...

Coding & AlgorithmsArrays & Strings

Count Perfect Wake Numbers: Distinct Nonzero Digits, Inner Digits as Peaks

A positive integer is a perfect wake number when its decimal digits satisfy three conditions: it contains no 0, no digit repeats, and the two digits n...

Coding & AlgorithmsMath & Number Theory

Software EngineerSenior+

Design a Windowed Hit Counter with Fixed Buckets and Concurrency

Design a hit counter and discuss three follow-ups: many hits at the same timestamp, reducing storage and operation cost with two fixed-size arrays, an...

Software Engineering FundamentalsData Structure DesignConcurrency

Software EngineerNew Grad

Return Word Frequencies in Alphabetical Word Order

Given a list of words, count each distinct word and return a list of counts ordered alphabetically by the corresponding distinct words. The output con...

Coding & AlgorithmsArrays & StringsSorting

Find the Two Indices Whose Values Sum to a Target

Given an integer array and a target, return the indices of two distinct elements whose sum equals the target. Constraints and Clarifications The repor...

Coding & AlgorithmsArrays & Strings

Courier Pay From Overlapping Deliveries With Peak-Window Multipliers

A delivery courier accepts orders and later delivers them, and may carry several orders at the same time. The courier is paid for every minute each or...

Coding & AlgorithmsIntervals & Scheduling

546 people solved

Oct 1, 2026

AmazonGoogleBloomberg

Medium

Software Engineer

Manually Parse a Bounded Integer

Problem Parse the string text manually and return a signed 32-bit integer using these rules: 1. Advance past any ASCII spaces (U+0020) at the beginnin...

Coding & AlgorithmsParsing & InterpretersArrays & Strings

Fastest 1000 Meters: Max Average Speed from 5-Second Distance Splits

A runner's workout is recorded as a list of integers distances, where distances[i] is the number of meters covered during the i-th consecutive 5-secon...

Coding & AlgorithmsTwo Pointers & Sliding Window

Longest Spoken Prefix with Repeated Words: Review an LCS Version, Then Rewrite It

A voice agent receives a script from a language model, want_to_speak, and produces a transcript of what it has actually said, spoken_text. The script ...

Software Engineering FundamentalsTwo Pointers & Sliding WindowCode Quality & Maintainability

Randomized String Multiset With Average O(1) Insert, Remove and Weighted Random Pick

Design a data structure that holds a collection of strings in which the same string may be stored several times, and that supports the following opera...

Software Engineering FundamentalsData Structure Design

Deployment Window Scheduler: Allowed Minus Freeze Windows, Time Zones, Filters

Implement a scheduler that computes when a service may be deployed. Time is measured as minute_of_week, an integer in [0, 10079]; a week has 10080 min...

Software Engineering FundamentalsIntervals & Scheduling

Software Engineer Locked

Greedy Longest-Match Tokenization of a String Against a Fixed Vocabulary

Tokenize a string against a fixed vocabulary by repeatedly taking the longest vocabulary entry that matches at the current position, and return the to...

Coding & AlgorithmsString Algorithms

Software Engineer Locked

Validate CSV Company Records for Missing Fields, Length, Forbidden Words and Overlap

Build a validator for a CSV of company records that flags missing fields, values outside length limits and forbidden words, then measures word overlap...

Software Engineering FundamentalsArrays & StringsData Cleaning & Wrangling

214

2113 people solved

Sep 22, 2026

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Tech Interview Questions

Extensible Logger with Pluggable Filter, Truncate, Uppercase and Array Handlers

Look Up a Book Title Typed with Missing or Extra Spaces

Hand-Written Gradients: Prefix-Product Backward Pass and Stable Cross-Entropy

Dasher Pay from Concurrent Orders with Double-Pay Time Windows

Find All Distinct Four-Value Target Groups

Card Game Program: Rank Three-Card Hands and Print the Winner

Match an Entire String with Dot and Star

Count Pairs of Points Within 2 Units on Both Axes

Count Perfect Wake Numbers: Distinct Nonzero Digits, Inner Digits as Peaks

Design a Windowed Hit Counter with Fixed Buckets and Concurrency

Return Word Frequencies in Alphabetical Word Order

Find the Two Indices Whose Values Sum to a Target

Courier Pay From Overlapping Deliveries With Peak-Window Multipliers

Manually Parse a Bounded Integer

Fastest 1000 Meters: Max Average Speed from 5-Second Distance Splits

Longest Spoken Prefix with Repeated Words: Review an LCS Version, Then Rewrite It

Randomized String Multiset With Average O(1) Insert, Remove and Weighted Random Pick

Deployment Window Scheduler: Allowed Minus Freeze Windows, Time Zones, Filters

Greedy Longest-Match Tokenization of a String Against a Fixed Vocabulary

Validate CSV Company Records for Missing Fields, Length, Forbidden Words and Overlap

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