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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
Decagon logo
Decagon
Medium
Software Engineer

Solve 3x3 Tic-Tac-Toe with Backtracking: Perfect-Play Result and Best Move

Write a program that solves 3×3 tic-tac-toe with backtracking, that is, by trying a move, searching everything that can follow it, and undoing the mov...

Software Engineering FundamentalsBacktracking & RecursionSimulation & State Machines
3
0
48 people solved
Apr 12, 2026
Google logo
GoogleAmazonRubrik
Medium
Software Engineer

Count Prefix and Suffix Removals by Product Remainder

Problem You are given a nonempty array of positive integers nums and a positive integer k. Perform one operation by removing a prefix and a suffix, le...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
11 people solved
Xiaohongshu logo
Xiaohongshu
Medium
Software Engineer Locked

Maximum Profit from One Stock Purchase and a Later Sale

Given one stock's price on each of several consecutive days, compute the maximum profit from buying one share and selling it on a strictly later day, ...

Coding & AlgorithmsArrays & Strings
2
0
32 people solved
Aug 28, 2026
Groww logo
GrowwGoogleAmazon

Also asked at Amazon, Bloomberg, Snowflake, Microsoft, TCS

Hard
Software Engineer

Choose Valuable Events with an Attendance Limit

Problem Each event in events is [startDay,endDay,value]. Attending earns its value but occupies every day from startDay through endDay, inclusive. Att...

Coding & AlgorithmsDynamic ProgrammingIntervals & Scheduling
1
0
11 people solved
Google logo
GoogleAmazon
Hard
Software Engineer

Answer Kth-Ancestor Queries with the Native Tree Class

Problem The parent array describes a tree on 0..n-1 rooted at 0. Implement TreeAncestor(n,parent),then getKthAncestor(node,k) to return the ancestor r...

Coding & AlgorithmsTreesData Structure Design
0
0
11 people solved
Microsoft logo
MicrosoftArcesiumExpedia
Medium
Software Engineer

Maximize Total Height in a Mountain of Towers

Maximize Total Height in a Mountain of Towers You are given a 0-indexed array maxHeights of n integers. Choose an integer height heights[i] for the to...

Coding & AlgorithmsStacks & QueuesDynamic Programming
0
0
12 people solved
Bloomberg logo
BloombergMetaMicrosoft

Also asked at Microsoft, Amazon, Google, Infosys, Oracle, Walmart Labs, Upstart

Medium
Software Engineer

Minimize a Triangle Path with Adjacent Downward Steps

Problem Given rows of a numeric triangle, return the smallest sum along a path from its top entry to its bottom row. From index i in one row, the next...

Coding & AlgorithmsDynamic Programming
1
0
18 people solved
Voleon logo
Voleon
Hard
Software EngineerNew Grad Locked

Solve classic coding interview problems

These problems evaluate algorithmic problem-solving skills including dynamic programming and combinatorics for the egg-dropping scenario, array manipu...

Coding & AlgorithmsDynamic ProgrammingTwo Pointers & Sliding Window
61
0
416 people solved
Feb 15, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Meta, Microsoft, IMC, NVIDIA, Agoda, TikTok, Flipkart

Medium
Software Engineer

Count Grid Routes Around Obstacles

Problem The rectangular integer grid blocked uses 0 for an open cell and 1 for an obstacle. A route begins at the upper-left cell and ends at the lowe...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
1
0
14 people solved
Coinbase logo
Coinbase
Medium
Software Engineer

Fee-Maximizing Block Assembly from a Mempool with Child-Pays-For-Parent

In cryptocurrency mining, a miner places transactions into a candidate block. Each block has a fixed size B = 100. At any point in time, the transacti...

Software Engineering FundamentalsGreedyGraphs
8
0
65 people solved
May 8, 2026
Infosys logo
InfosysGoogleAmazon

Also asked at Amazon, Meta, Microsoft, Zeta Global, Scaler, Bloomberg

Hard
Software Engineer

Minimize Cuts into Palindromic String Pieces

Problem Split a nonempty string into contiguous palindromic pieces using the fewest cuts. Return the number of cuts, not the pieces. With k pieces the...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
16 people solved
Amazon logo
AmazonGoogleIBM

Also asked at IBM, Oracle, Accenture

Hard
Software Engineer

Fewest Insertions Needed for a Palindrome

Problem Insert any character at any string position in one operation. Return the minimum operations required to turn s into a palindrome, a string equ...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
11 people solved
Flipkart logo
FlipkartAmazonPayPal

Also asked at PayPal, PhonePe, Meta, Microsoft, Deshaw

Medium
Software Engineer

Propagate the Quietest Known Richer Person

Problem People have distinct wealth and distinct quiet values. richer rows [a,b] assert that a is wealthier than b, and all assertions are logically c...

Coding & AlgorithmsGraphsDynamic Programming
1
0
11 people solved
Google logo
GoogleAmazonMetaMicrosoft

Also asked at Meta, Microsoft

Medium
Software Engineer

Optimal First-Player Stones With a Growing Take Limit

Problem Positive stone piles are arranged in a row. Alice starts, then players alternate taking the first X remaining whole piles, with 1 <= X <= 2*M ...

Coding & AlgorithmsDynamic Programming
1
0
9 people solved
Uber logo
Uber
Medium
Software Engineer

Find minimal rate k and subset sum

Question LeetCode 875. Koko Eating Bananas — Given vault sizes [3, 6, 7, 11] and time h = 8 hours, find the minimum integer rate k (vault units per ho...

Coding & AlgorithmsBinary SearchDynamic Programming
96
0
689 people solved
Aug 4, 2025
Amazon logo
AmazonGoogleLinkedIn

Also asked at LinkedIn, Microsoft, Meta, Zeta Global

Medium
Software Engineer

Divide All Values into Equal-Sum Groups

Problem Decide whether every element of nums can be assigned to exactly k nonempty groups so that all group sums agree. Each array position must be us...

Coding & AlgorithmsBacktracking & RecursionDynamic Programming
1
0
9 people solved
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Bloomberg, Axon, Meta, eBay, Zoho

Medium
Software Engineer

Recognize an Order-Preserving Merge of Two Strings

Problem Determine whether s3 can be formed by interleaving all characters of s1 and s2, preserving each input's internal character order. Equivalently...

Coding & AlgorithmsDynamic Programming
0
0
6 people solved
Google logo
GoogleMeta
Medium
Software Engineer

Count Collections of Nonoverlapping Segments

Problem Points lie at integer coordinates 0..n-1 on a line. Draw exactly k segments with endpoints among these points. Every segment has distinct endp...

Coding & AlgorithmsMath & Number TheoryIntervals & Scheduling
1
0
10 people solved
Roblox logo
Roblox
Medium
Data Scientist

Optimize assembly-line scheduling with changeovers

You are scheduling a simplified car-assembly line with two parallel stations S1 and S2. Each job must be processed on exactly one station, processing ...

Coding & AlgorithmsIntervals & Scheduling
26
0
208 people solved
Oct 13, 2025
Amazon logo
AmazonBloombergMeesho
Medium
Software Engineer

Distinct XOR Results from Three Array Choices

Problem Given an integer array nums, consider every index triple satisfying 0 <= i <= j <= k < nums.length. Its XOR value is: `text nums[i] XOR nums[j...

Coding & AlgorithmsBit ManipulationDynamic Programming
1
0
9 people solved
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