New Grad Coding & Algorithms Interview Questions
New grad coding interviews are algorithm-heavy by design. These coding and algorithms questions were reported from new grad and entry-level interviews, so they sit squarely in the medium-difficulty band that full-time entry-level loops favor: BFS and DFS on graphs, tree problems, sliding window, two pointers, backtracking, and the dynamic programming basics that separate offers from rejections. The skill that gets you through is pattern recognition — spotting which technique a problem wants before you start coding. Drill these real questions to build that instinct under time pressure. Most come with a detailed solution that walks through the approach and complexity, so you learn the pattern, not just the answer.
"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."
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 ...
Implement KNN from Scratch
This question evaluates a candidate's understanding and practical implementation skills for instance-based supervised learning, specifically the k-nea...
Minimum Bills and Coins to Make Change
This question tests a candidate's grasp of greedy algorithms applied to a classic coin-change problem with fixed denominations. It evaluates practical...
Solve Two Array Optimization Problems
You are given two coding problems from the same interview round. Problem 1: Split a gold chain fairly An array weights represents the weights of conse...
Solve interval, grid-fill, and heap tasks
You are asked to solve the following algorithmic problems. Problem 1: Concurrent users from online intervals You are given n inclusive time intervals ...
Implement FizzBuzz
This question evaluates a candidate's ability to implement basic control flow, use modulo operations, iterate over sequences, and reason about time an...
Implement Optimal Bucket Batching
You are given an array lengths of K document lengths and an integer G representing the number of available GPUs. A batch is assigned to one GPU, and e...
Implement streaming RLE and bit-packed codec
You are implementing a simple compression scheme for sequences of 32‑bit signed integers. The codec should support two encoding strategies: 1. Run‑Len...
Implement a thread-safe money transfer
Problem: Implement a concurrent-safe transfer function You are given an in-memory store of bank accounts: - Each account has an accountId and a balanc...
Implement Due Broadcast Sender
You are building a notification system. You are given: - A mapping from company_id to a list of subscriber IDs. - A list of broadcast logs. Each log c...
Evaluate ACL rules for IP and CIDR
This question evaluates a candidate's competency in IP address and CIDR arithmetic, bitwise reasoning, and algorithm design within the Coding & Algori...
Determine Whether P's Position Is Unique
You are given an R x C rectangular grid and a set of named entities. Each entity must be placed in exactly one distinct cell. You are also given a col...
Cargo Order Allocation Across Departing Planes
A freight company assigns incoming shipping orders to a fixed fleet of cargo planes. You must implement the order-processing logic: decide whether eac...
Can board states be transformed?
This question evaluates reasoning about constrained piece movement, string transformation, and invariant-based correctness in the Coding & Algorithms ...
Implement a random fixed-size load balancer
Problem: Build a simple load balancer Implement a minimal in-memory load balancer that routes each incoming request to one backend node chosen uniform...
Find K Nearest Points
This question evaluates proficiency with Euclidean distance metrics, selection algorithms, and efficient data structures for partial sorting, while re...
Design KV store with sliding-window average QPS
Problem Design an in-memory key–value store that supports mutation operations and can report the average QPS (queries per second) over a recent time w...
Write a generator for substring pattern matches
Problem Write a generator that scans a string and emits a value whenever a substring matches a given pattern. Input - A string s - A string pattern (n...
Find path in implicit Fibonacci tree
You are given a special family of binary trees called Fibonacci trees. The k‑th order Fibonacci tree T(k) is defined recursively: - T(1) is a single n...
Implement an LRU cache
Design a key-value cache with a fixed capacity. It must support: - get(key): return the value for the key if it exists, otherwise return -1. - put(key...