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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
154
Companies
980
Updated
11.05.2026
154 Questions 980 Companies11.05.2026
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
GoogleAmazonMeta

Also asked at Meta, Bloomberg, TCS, Microsoft, Arista Networks, NVIDIA, Salesforce, Infosys, Apple, IBM, Goldman Sachs, Zoho, Revolut

Easy
Software Engineer

Find the Missing Value in a Complete Integer Range

Find the Missing Value in a Complete Integer Range An array nums contains n distinct integers chosen from the inclusive range [0, n]. Exactly one valu...

Coding & AlgorithmsMath & Number TheoryBit Manipulation
1
0
12 people solved
Salesforce logo
Salesforce
Medium
Software EngineerSenior+

Solve Two OA Coding Problems

The online assessment included two coding problems: 1. In-place character run compression - You are given an array of characters. - Compress con...

Coding & AlgorithmsGreedyArrays & Strings
67
0
453 people solved
Apr 5, 2026
Google logo
GoogleBloombergMicrosoft

Also asked at Microsoft, Amazon, Meta, NVIDIA, Apple, Qualcomm

Easy
Software Engineer

Count the Set Bits for Every Value up to a Limit

Count the Set Bits for Every Value up to a Limit Given a nonnegative integer n, return an array ans of length n+1. For every integer i from 0 through ...

Coding & AlgorithmsBit ManipulationDynamic Programming
1
0
9 people solved
Google logo
Google
Hard
Software Engineer

Blind Maze Escape: Shortest Command Sequence That Exits From Every Start Cell

A robot is somewhere in a maze drawn on a rectangular grid, where # is a wall, . is an open cell and E is the exit. The robot understands four command...

Coding & AlgorithmsGraphsGrids & Matrices
11
1
129 people solved
Apr 22, 2026
ByteDance logo
ByteDance
Medium
Software Engineer

Maximum total weight of graph nodes with no two adjacent

You are given an undirected graph whose nodes carry positive weights. Choose a set of nodes such that no two chosen nodes are joined by an edge, and r...

Coding & AlgorithmsGraphsBacktracking & Recursion
1
0
15 people solved
Sep 11, 2026
Google logo
GoogleAmazonMicrosoft
Easy
Software Engineer

Check Adjacent Bits in a Positive Integer

Problem Return whether the ordinary binary representation of positive n has different values at every pair of adjacent bits. Ignore leading zero paddi...

Coding & AlgorithmsBit Manipulation
1
0
12 people solved
Google logo
GoogleArcesiumMeta

Also asked at Meta, Amazon, Salesforce, Bloomberg, Microsoft

Hard
Software Engineer

Split into Equal-Sized Groups with Closest Sums

Problem Given an array nums of length 2 * n, divide all its entries into two groups containing exactly n entries each. The groups need not be contiguo...

Coding & AlgorithmsBacktracking & RecursionBinary Search
2
0
16 people solved
Databricks logo
Databricks
Hard
Software EngineerNew Grad

Implement firewall matching with CIDR rules

Implement a simple IPv4 firewall rule matcher. Problem You are given an ordered list of firewall rules. Each rule has: - an action: ALLOW or DENY - a ...

Coding & AlgorithmsBit ManipulationNetworking
28
2
436 people solved
Dec 10, 2025
Pinterest logo
Pinterest
Medium
Software Engineer Locked

List Unallocated Experiment Buckets

Identify every unallocated bucket in a fixed experiment-traffic range after considering control and enabled-group assignments. This problem examines e...

Coding & AlgorithmsArrays & Strings
21
0
144 people solved
Jul 23, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+ Locked

Convert a Hexadecimal Address to Dotted IPv4

Convert an eight-digit hexadecimal address to network-order dotted IPv4 with strict validation, optional prefixes, and correct high-bit handling.

Coding & AlgorithmsParsing & InterpretersMath & Number Theory
2
0
35 people solved
Aug 30, 2026
Google logo
GoogleAmazonMeta

Also asked at Meta, Bloomberg, Microsoft, IBM, Swiggy

Medium
Software Engineer

Add Two Integers Without Plus or Minus

Add Two Integers Without Plus or Minus Given two integers a and b, return their sum without using the + or - operators. Function int getSum(int a, int...

Coding & AlgorithmsBit Manipulation
0
0
9 people solved
Uber logo
Uber
Medium
Software Engineer

Count Substrings with Almost-Even Letter Counts

Problem Count the nonempty contiguous substrings of word in which no more than one letter occurs an odd number of times. The input uses only lowercase...

Coding & AlgorithmsBit ManipulationArrays & Strings
2
1
22 people solved
Databricks logo
Databricks
Medium
Software Engineer

Design IP/CIDR rule matcher

Design and implement a rule matcher that returns 'accept' or 'deny' for a given IPv4 address based on a set of rules. Each rule can be either an inclu...

Coding & AlgorithmsData Structure DesignIntervals & Scheduling
54
0
523 people solved
Sep 6, 2025
Amazon logo
Amazon
Hard
Software Engineer

Minimize Branch Merge Conflicts

You are given several feature branches that must all be merged into the main branch. Each branch contains a sequence of commits, and each commit modif...

Coding & AlgorithmsDynamic Programming
54
0
841 people solved
Jan 12, 2026
Databricks logo
Databricks
Medium
Software EngineerSenior+

Implement RLE and bit-packing compression

You are asked to implement two related compression/decompression schemes: Run-Length Encoding (RLE) and bit-packing. --- Part 1 — Run-Length Encoding ...

Coding & AlgorithmsArrays & StringsBit Manipulation
79
2
539 people solved
Oct 10, 2025
Microsoft logo
MicrosoftGoogleAmazon

Also asked at Amazon, Bloomberg, Meta

Medium
Software Engineer

Find the Largest XOR Value From an Array Pair

Find the Largest XOR Value From an Array Pair Given a nonnegative integer array nums, return the maximum value of nums[i] XOR nums[j] over indices sat...

Coding & AlgorithmsBit ManipulationTrees
0
0
8 people solved
Uber logo
Uber
Medium
Software Engineer

Solve these algorithmic problems

You are given the following independent coding tasks. For each task, design an algorithm and implement a function that returns the requested output. -...

Coding & AlgorithmsDynamic ProgrammingBinary Search
77
2
620 people solved
Feb 11, 2026
Arista Networks logo
Arista Networks
Medium
Software Engineer

Swap Adjacent Nibble Pairs in a 32-Bit Unsigned Integer

A nibble is a group of 4 bits, which is one hexadecimal digit. Given a 32-bit unsigned integer, swap every even-position nibble with the odd-position ...

Coding & AlgorithmsBit Manipulation
2
0
17 people solved
Jul 11, 2026
Uber logo
Uber
Medium
Software Engineer

Solve 12 coding interview problems

Below are multiple independent coding problems. --- Problem 1: Reduce an integer to 0 with \(\pm 2^i\) You are given a positive integer \(n\). In one ...

Coding & AlgorithmsDynamic ProgrammingBinary Search
372
0
3900 people solved
Feb 12, 2026
Deshaw logo
DeshawMicrosoftAmazon

Also asked at Amazon, Google, Meta, Bloomberg, Goldman Sachs

Medium
Software Engineer

Find One Symbol in a Repeated Binary Expansion

Problem Row 1 is "0". To form each next row, replace every 0 with 01 and every 1 with 10. Return the one-indexed kth symbol of row n without building ...

Coding & AlgorithmsBacktracking & RecursionBit Manipulation
1
0
15 people solved
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