Interview Questions
Practice the exact questions companies are asking right now.
"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"
"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"
"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."
"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."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"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."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"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."
"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."
"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."
"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."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"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."
Solve tree leaf sum and target indices search
Question LeetCode 129. Sum Root to Leaf Numbers LeetCode 2089. Find Target Indices After Sorting Array (array already sorted; require O(log n) time) h...
Explain and Implement Strings
Question What is a string in programming languages? Inside a struct string{} in Rust, what fields are stored and how would you design and implement on...
Check tree nodes equal subtree average
Question LeetCode 2265. Count Nodes Equal to Average of Subtree – Adapted: Verify that every node’s value equals the average of all values in its subt...
Solve 4 LeetCode algorithm problems
Question LeetCode 636. Exclusive Time of Functions LeetCode 253. Meeting Rooms II LeetCode 314. Binary Tree Vertical Order Traversal LeetCode 215. Kth...
Check Palindrome and Add Decimal Strings
Question LeetCode 266. Palindrome Permutation – Given a string, determine whether any permutation can form a palindrome. Follow-up: If a palindrome pe...
Find Top K Frequent Elements
Question LeetCode 347. Top K Frequent Elements – given an integer array nums, return the k most frequent elements. Initial requirement: return the top...
Detect shuffle-mode sequence
Question Given a playlist of distinct songs and two player modes—Random (each next song chosen independently and uniformly at random, with replacement...
Find closest BST value and remove parentheses
Question LeetCode 270. Closest Binary Search Tree Value LeetCode 1249. Minimum Remove to Make Valid Parentheses (follow-up: achieve without using a st...
Design prefix-sum function and max stack
Question LeetCode 303. Range Sum Query – Immutable (design a reusable prefix-sum function) LeetCode 716. Max Stack (similar design question) https://l...
Navigate maze via HTTP API
Question Implement a program that repeatedly calls a provided HTTP API which returns the next URL in a maze; continue following the URLs until reachin...
Solve LeetCode stack and tree problems
Question LeetCode 1249. Minimum Remove to Make Valid Parentheses LeetCode 863. All Nodes Distance K in Binary Tree https://leetcode.com/problems/minim...
Find lowest common ancestor
Question LeetCode 236. Lowest Common Ancestor of a Binary Tree — Given a binary tree, find the lowest common ancestor (LCA) of two given nodes. Follow...
Solve diameter and shortest bridge problems
Question LeetCode 543. Diameter of Binary Tree LeetCode 934. Shortest Bridge https://leetcode.com/problems/diameter-of-binary-tree/description/ https:...
Explain strings, moves, and concurrency
Question What is a string in programming languages? What fields are stored in a typical struct string and how would you implement one yourself? What i...
Compute concurrent online drivers
Question Given each driver’s chronologically sorted delivery records, build an algorithm that, for a timestamp t, returns how many distinct drivers we...
Find integer in most intervals
Question Given N integer intervals [ai, bi] (positive integers), find an integer that belongs to the maximum number of intervals (return any such inte...
Handle palindrome & decimal addition
Question LeetCode 266. Palindrome Permutation Given two non-negative decimal number strings, implement addition that supports a decimal point. https:/...
Implement bank account with cashback
Implement a bank account processor. Given an initial non-negative integer balance B and a list of operations (n up to 1e 5), apply each operation in o...
Compute product of array except self
Given an integer array nums, return an array out where out[i] equals the product of all elements in nums except nums[i]. Do it in O(n) time using cons...
Reconstruct tree from inorder and postorder
Given two arrays representing the inorder and postorder traversals of a binary tree with unique values, reconstruct the original binary tree and retur...