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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
GoogleMetaAmazon

Also asked at Amazon, Bloomberg, Microsoft

Easy
Software Engineer

Read the Final Value of an Array

Problem Extend JavaScript arrays with a method named last, so that calling items.last() returns the final element of items. If the array is empty, ret...

Coding & AlgorithmsJavaScript & TypeScript
0
0
7 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
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Microsoft, TCS, Goldman Sachs, NVIDIA

Easy
Software Engineer

Return the Third Distinct Maximum or the Maximum

Return the Third Distinct Maximum or the Maximum Given an integer array nums, return its third-largest distinct value. If the array has fewer than thr...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
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
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Snowflake, Verkada, Microsoft, Uber, Nuro

Medium
Software Engineer

Keep Only Folders Without a Listed Ancestor

Problem Given unique valid absolute folder paths, remove every path that is a subfolder of another listed path. A path is a subfolder only when the an...

Coding & AlgorithmsSortingArrays & Strings
0
0
13 people solved
J.P. Morgan logo
J.P. Morgan
Medium
Machine Learning Engineer Locked

Return Every Index Pair Whose Values Sum to a Target

Return every distinct pair of array indices whose values add to a target, including all valid combinations created by duplicates. Skills under review ...

Coding & AlgorithmsArrays & Strings
22
0
177 people solved
Aug 5, 2026
Google logo
GoogleMicrosoftBloomberg

Also asked at Bloomberg, Amazon, BlackStone

Easy
Software Engineer

Remove Adjacent Opposite-Case Copies of the Same Letter

Problem Repeatedly remove an adjacent pair consisting of the same English letter in opposite cases. Stop when no such pair remains and return the resu...

Coding & AlgorithmsStacks & QueuesArrays & Strings
0
0
11 people solved
Google logo
Google
Medium
Software Engineer

Players with No Losses or Exactly One Loss

Problem Each row [winner, loser] in matches records one match result. Consider only players who appear in at least one row. Return two lists in this o...

Coding & AlgorithmsArrays & StringsSorting
1
0
11 people solved
Google logo
GoogleMicrosoftAmazon

Also asked at Amazon, Meta, Bloomberg

Medium
Software Engineer

Reachability Queries in a Value-Difference Graph

Reachability Queries in a Value-Difference Graph There are n graph nodes labeled 0 through n - 1. You are given their integer values in an array nums,...

Coding & AlgorithmsGraphs
0
0
7 people solved
Meta logo
MetaAndurilAmazonGoogle

Also asked at Amazon, Google

Medium
Software Engineer

List Buildings That Clear Every Building to Their Right

Problem Buildings have heights heights, and the ocean lies to their right. A building sees the ocean exactly when every building to its right is stric...

Coding & AlgorithmsArrays & Strings
0
0
10 people solved
Google logo
GoogleMeta
Medium
Software Engineer

Largest Integer with a Maximum Digit-Square Score

Problem You are given positive integers num and sum. Consider positive integers with exactly num decimal digits whose digits add up to exactly sum. An...

Coding & AlgorithmsGreedyMath & Number Theory
0
0
6 people solved
Amazon logo
AmazonBloombergYandex

Also asked at Yandex, Google, Meta, Microsoft, TCS, VK

Medium
Software Engineer

Longest Run of Ones After One Required Deletion

Problem Delete exactly one element of the binary array nums. Return the longest all-one contiguous subarray length in the resulting array,or 0 if ther...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
8 people solved
Google logo
Google
Medium
Software Engineer

Check if all substrings are dictionary words

You are given a string s (letters only) and access to an English dictionary dict (a set of valid words). Return true if every contiguous substring of ...

Coding & AlgorithmsString Algorithms
59
0
557 people solved
Mar 11, 2026
Google logo
GoogleBloombergAmazonMeta

Also asked at Amazon, Meta

Medium
Software Engineer

Count All Maximum-Length Strictly Increasing Subsequences

Problem Return the number of longest strictly increasing subsequences in nums. Subsequences preserve index order but need not be contiguous. Different...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
9 people solved
Google logo
GoogleYandexAmazon

Also asked at Amazon, Meta, Microsoft, Bloomberg

Medium
Software Engineer

Count Values Shared by Both Prefixes at Each Position

Problem A and B are permutations of the integers 1 through n. Return an array C where C[i] counts values appearing somewhere in both prefixes A[0..i] ...

Coding & AlgorithmsArrays & StringsBit Manipulation
0
0
9 people solved
TikTok logo
TikTokIBMGoogle

Also asked at Google, Oracle, SoFi, Meta, Amazon, Faire

Medium
Software Engineer

Find the Longest Strict Rise Followed by a Strict Fall

Problem A mountain subarray has at least three consecutive entries, rises strictly to one interior peak, then falls strictly. Return the length of the...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
12 people solved
eBay logo
eBay
Medium
Software Engineer

Rebuild a Binary Tree from Two Traversals and Serialize It Level by Level

You are given two integer arrays, preorder and inorder, that hold the preorder and inorder traversals of the same binary tree. Every node value in the...

Coding & AlgorithmsTrees
2
0
38 people solved
May 8, 2026
Google logo
Google
Medium
Software Engineer

Fully Expand Replacement Placeholders

Problem You are given replacements, a list of [key, value] pairs, and a string text. Each key is a unique uppercase English letter. A placeholder such...

Coding & AlgorithmsParsing & InterpretersGraphs
0
0
12 people solved
Bloomberg logo
BloombergGoldman SachsGoogle

Also asked at Google, Microsoft, Amazon

Easy
Software Engineer

Check a Robot's Final Displacement

Problem A robot begins at (0,0). Each character in moves takes one equal-length step: R right, L left, U up, D down. Directions are absolute and do no...

Coding & AlgorithmsSimulation & State MachinesArrays & Strings
0
0
11 people solved
TCS logo
TCS
Medium
Software Engineer

Find the Period of a Perfect Interleaving

Problem Begin with the identity permutation of even length n. In each operation create a new array: at even index i take the previous entry at i/2; at...

Coding & AlgorithmsMath & Number TheorySimulation & State Machines
1
0
10 people solved
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