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

Render

Medium

Software Engineer

Find the Five Busiest Client IPs in Request Logs

During an API traffic incident, find the five client IP addresses with the most completed request-log entries across several files. Ignore background-...

Coding & AlgorithmsParsing & InterpretersArrays & Strings

Splendor-Style Card Purchases with Gem Costs, Color Discounts and Concurrent Buys

Build a small simulation of buying cards in a game modeled on the board game Splendor. Players hold gems in five colors: Blue (B), White (W), Green (G...

Software Engineering FundamentalsLow-Level Design (OOP)Concurrency

Software Engineer Locked

Merge Two Strings Using the Longest Edge Overlap

Compare both suffix-to-prefix concatenation orders, merge the longest edge overlap, and favor the original string order when overlap lengths tie.

Coding & AlgorithmsString Algorithms

Software EngineerNew Grad

Maximum Sum of a Filled Diamond That Fits Inside an Integer Grid

You are given an m x n grid of integers. A diamond is described by a center cell (r, c) and a radius k >= 0. It contains every cell (i, j) whose Manha...

Coding & AlgorithmsGrids & Matrices

Software Engineer Locked

Convert Sampled Call Stacks into Timestamped Function Start and End Events

Convert a sampling profiler's timestamped call stacks into function start and end events for a trace viewer, explain why ends are emitted innermost fi...

Software Engineering FundamentalsStacks & QueuesArrays & Strings

Software EngineerSenior+

Collapse runs of adjacent anagrams in a word list

You are given a list of lowercase words. Two words are anagrams of each other when one can be turned into the other by rearranging its letters, using ...

Coding & AlgorithmsArrays & Strings

Longest Non-Decreasing Subarray After One Replacement

Given an integer array nums, return the maximum length of a contiguous non-decreasing subarray obtainable after changing at most one array element to ...

Coding & AlgorithmsArrays & StringsDynamic Programming

Software Engineer Locked

Count Squares Formed by Intersections of Vertical and Horizontal Segments

Given vertical and horizontal line segments defined by start and end points, count the axis-aligned squares whose four corners are all segment interse...

Coding & AlgorithmsMath & Number Theory

116 people solved

Sep 10, 2026

Medium

Software Engineer Locked

Find Users with at Least One Session Within a Duration Limit

Process chronological sign-in and sign-out logs to find users with any completed session at or below a maximum duration.

Coding & AlgorithmsArrays & Strings

Machine Learning EngineerSenior+ Locked

Redact Document Phrases with Simultaneous Replacement

Redact document phrases with a replacement map, whole-word matching, longest-match overlap rules, and one-pass replacement of original text.

Coding & AlgorithmsArrays & Strings

Software Engineer Locked

In-Place Rectangle Copy Within a 2D Array Using O(1) Extra Memory

Copy a rectangular block of a 2D array to another position in the same array, in place with O(1) extra memory, where the source and destination blocks...

Coding & AlgorithmsGrids & Matrices

Software EngineerIntern Locked

Read and Write Files with Shared Content

Process in-memory file writes and reads while sharing identical retained content across paths and preserving exact, case-sensitive data retrieval.

Coding & AlgorithmsData Structure DesignFile & Media Storage

Split a Digit String into All Strictly Increasing Number Sequences

Given a string s of decimal digits, cut it into one or more contiguous pieces and read each piece as a decimal integer. Return every way of cutting s ...

Coding & AlgorithmsBacktracking & Recursion

Implement 2048-Style Tile Slides and Merges for All Four Board Directions

Implement the move logic of a sliding-tile game played on a square board of numbered tiles. A move pushes every tile as far as it can go in one direct...

Software Engineering FundamentalsSimulation & State MachinesGrids & Matrices

Recover a Guaranteed More-Than-Half Majority

Problem Return the value occurring more than floor(n/2) times in a nonempty integer array. The input is guaranteed to contain such a majority value. `...

Coding & AlgorithmsArrays & Strings

Precompute Nearest Target Positions and Define Streaming Answers

An array contains characters such as x, y, and z. Design a representation that can answer nearest-z queries for relevant positions, then explain how y...

Software Engineering FundamentalsArrays & Strings

6 people solved

Oct 18, 2026

Check Whether a Letters-and-Numbers Abbreviation Matches a Word

A word can be abbreviated by replacing some of its non-empty substrings with their lengths, written in decimal. For example, "abbreviation" can be wri...

Coding & AlgorithmsTwo Pointers & Sliding Window

Software Engineer Locked

Merge Exact-Word Highlights and Rank Their Citations

Highlight exact whole-word source phrases in text, merge overlapping regions, and attach distinct citations in the required global ranking order. Hand...

Coding & AlgorithmsIntervals & Scheduling

118

974 people solved

Jul 27, 2026

MicrosoftAmazonGoogle

Easy

Software Engineer

Reverse Characters Inside Each Sentence Word

Problem Reverse the characters of every word in s while keeping the words in their original order and every separating space in place. Printable ASCII...

Coding & AlgorithmsArrays & Strings

Array Values at Saved Snapshot Versions

Problem Implement the native SnapshotArray class. Construction creates length zeros. set(index,val) changes the current value. snap() saves the curren...

Coding & AlgorithmsData Structure DesignBinary Search

31 people solved

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Tech Interview Questions

Find the Five Busiest Client IPs in Request Logs

Splendor-Style Card Purchases with Gem Costs, Color Discounts and Concurrent Buys

Merge Two Strings Using the Longest Edge Overlap

Maximum Sum of a Filled Diamond That Fits Inside an Integer Grid

Convert Sampled Call Stacks into Timestamped Function Start and End Events

Collapse runs of adjacent anagrams in a word list

Longest Non-Decreasing Subarray After One Replacement

Count Squares Formed by Intersections of Vertical and Horizontal Segments

Find Users with at Least One Session Within a Duration Limit

Redact Document Phrases with Simultaneous Replacement

In-Place Rectangle Copy Within a 2D Array Using O(1) Extra Memory

Read and Write Files with Shared Content

Split a Digit String into All Strictly Increasing Number Sequences

Implement 2048-Style Tile Slides and Merges for All Four Board Directions

Recover a Guaranteed More-Than-Half Majority

Precompute Nearest Target Positions and Define Streaming Answers

Check Whether a Letters-and-Numbers Abbreviation Matches a Word

Merge Exact-Word Highlights and Rank Their Citations

Reverse Characters Inside Each Sentence Word

Array Values at Saved Snapshot Versions

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