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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 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
Google logo
GoogleMicrosoftBloomberg

Also asked at Bloomberg, Meta, LinkedIn, Zoho

Easy
Software Engineer

Check Whether Repeated Keystrokes Can Produce a Typed Name

Problem Each character of name must be typed in order, but a long press may repeat that character one or more times. Return whether typed could result...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
9 people solved
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Microsoft, Accenture

Medium
Software Engineer

Maximize the Weighted Sum Over Clockwise Rotations

Maximize the Weighted Sum Over Clockwise Rotations Given an integer array nums of length n, let arr_k be the array obtained by rotating it clockwise b...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
0
0
8 people solved
Rippling logo
Rippling
Medium
Software Engineer Locked

Implement Food Delivery Billing

This question evaluates proficiency in implementing business billing rules, time and distance-based fee calculations, timestamp arithmetic, numerical ...

Coding & AlgorithmsArrays & Strings
26
0
295 people solved
Mar 12, 2026
Google logo
Google
Medium
Software Engineer

Determine if a 14-tile hand is winning

You are given an integer array tiles of length 14 representing a Mahjong-like hand. Each integer is a tile value from 1 to 9 (single suit). You may re...

Coding & AlgorithmsBacktracking & Recursion
33
1
347 people solved
Mar 9, 2026
Meta logo
MetaGoogle
Hard
Software Engineer

Kth Distinct Palindromic Rearrangement

Problem You are given a lowercase English palindrome s and a positive integer k. Consider all distinct palindromic strings formed by rearranging exact...

Coding & AlgorithmsArrays & StringsMath & Number Theory
0
0
6 people solved
Pinduoduo logo
Pinduoduo
Medium
Software Engineer

Longest Single-Letter Substring After at Most k Character Changes

You are given a string s of uppercase English letters and an integer k. You may perform at most k operations; each operation changes one character of ...

Coding & AlgorithmsTwo Pointers & Sliding Window
1
0
19 people solved
Jul 17, 2026
Google logo
Google
Easy
Software Engineer

Detect Equal Sums among Different Adjacent Pairs

Problem Return whether nums contains two length-two contiguous subarrays with the same sum and different starting indices. The subarrays may overlap; ...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
OpenAI logo
OpenAI
Medium
Machine Learning Engineer

Implement Prefix Products and Their Backward Pass

Let x[0..n-1] be a sequence and define inclusive prefix products by y[i] = x[0] x[1] ... * x[i]. Work through the following variants. State how zero...

Machine LearningML CodingArrays & Strings
21
0
261 people solved
Aug 23, 2025
Amazon logo
Amazon
Medium
Software EngineerSenior+

Maximum Profit From a Single Buy Followed by a Later Sell

You are given the price of one stock on each of a sequence of days: prices[i] is the price on day i. You may buy one share on some day and sell it on ...

Coding & AlgorithmsArrays & Strings
1
2
16 people solved
Apr 6, 2026
Capital One logo
Capital One
Medium
Machine Learning Engineer

Validate virtual credit card transactions from encoded IDs

You are designing logic for a virtual credit card product. Part 1: Product reasoning Explain key benefits and drawbacks of virtual credit cards for: -...

System Design
28
0
438 people solved
Dec 15, 2025
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Microsoft, Bloomberg, Criteo, IBM, TCS, Yandex

Easy
Software Engineer

Return Shared Array Occurrences with Minimum Multiplicity

Problem Return the multiset intersection of nums1 and nums2: a value occurring a times in the first and b times in the second appears min(a,b) times i...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
0
0
8 people solved
Google logo
GoogleBloombergMeta

Also asked at Meta, Amazon, Microsoft, Envoy, Apple

Easy
Software Engineer

Choose the Earliest Year of Peak Population

Problem Each pair in logs gives one person’s birth and death years. Count a person from the birth year through the year before death. Return the earli...

Coding & AlgorithmsIntervals & SchedulingArrays & Strings
1
0
9 people solved
Google logo
GoogleMeta
Medium
Software Engineer

Recover Coin Denominations from Combination Counts

Recover Coin Denominations from Combination Counts You are given numWays of length N. Its entry numWays[a - 1] gives the number of ways to make amount...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
0
0
12 people solved
Qube Research & Technologies logo
Qube Research & Technologies
Medium
Software Engineer

Implement flat_map and design wealth redistribution

Part 1 — Implement a flat_map: Design and implement an associative container flat_map backed by a sorted dynamic array of (Key, Value) pairs. Support ...

Coding & AlgorithmsData Structure DesignBinary Search
22
0
187 people solved
Sep 6, 2025
Anthropic logo
Anthropic
Hard
Software Engineer

Implement staircase printing and distributed mode/median

Problem A: Print a “staircase” pattern Implement a function that prints a staircase with n rows. Input - An integer n (n >= 1) Output - Print n lines....

Coding & Algorithms
78
0
1075 people solved
Nov 19, 2025
Pinterest logo
Pinterest
Hard
Machine Learning Engineer

Insert parentheses to minimize expression value

You are given a string expression of the form A+B, where A and B are non-empty strings of digits (no digit is '0'). You must insert exactly one pair o...

Coding & AlgorithmsArrays & StringsMath & Number Theory
11
1
220 people solved
Feb 9, 2026
Pinterest logo
Pinterest
Medium
Machine Learning Engineer Locked

Solve five hard algorithm problems

This set of problems evaluates algorithm design and problem-solving skills across array manipulation, range-update techniques, load-balancing and part...

Coding & AlgorithmsArrays & StringsGreedy
10
0
159 people solved
Mar 8, 2026
Appian logo
AppianAmazoneBay
Easy
Software Engineer

Can One Removal Restore Strict Order?

Problem Return whether removing exactly one element from nums can leave its remaining elements in strictly increasing order. Equality does not satisfy...

Coding & AlgorithmsArrays & StringsGreedy
0
0
9 people solved
Ramp logo
Ramp
Medium
Frontend Engineer Locked

Build a Wordle-Style Game in React

Build a five-guess Wordle-style game in React with clean state ownership and terminal win or loss behavior. Cover duplicate-letter scoring, keyboard i...

Software Engineering FundamentalsReact & UI FrameworksState Management
13
0
191 people solved
Jul 17, 2026
Meta logo
MetaGoogleAmazon

Also asked at Amazon, Morgan Stanley, Bloomberg, Microsoft

Easy
Software Engineer

Longest Substring with At Most Two of Each Character

Longest Substring with At Most Two of Each Character Given a string s, return the maximum length of a contiguous substring in which no character occur...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
10 people solved
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