Robuta

Learn to decode strings encoded with repeat patterns using stacks. Master string manipulation and apply these skills in coding interviews with confidence.

Learn how to add two numbers represented by linked lists, focusing on digit-by-digit addition and handling carry in coding interviews.

Learn to merge account data by identifying common emails in Go. This Amazon coding challenge improves your problem-solving for technical interviews.

Learn how to verify valid parentheses sequences using Python, focusing on common coding interview problems involving brackets and braces matching.

Learn the fundamentals of dynamic programming, including top-down and bottom-up approaches, to efficiently solve optimization problems.

Join thousands of professionals practicing live mock interviews & interview questions online, with peers, for free. We help you prep & land your dream tech...

Learn to detect continuous subarrays summing to multiples of k, a key algorithmic challenge in coding interviews like Amazon's.

Learn to traverse a matrix in spiral order using a layer-by-layer approach, optimizing your algorithm skills for coding interviews in Kotlin.

Review essential cellular network optimization techniques and related coding interview questions for effective preparation in Kotlin.

Learn how to implement a memory efficient random pick index function for arrays with duplicates in Kotlin, preparing for real coding interviews.

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Learn to solve the minimum path sum problem in a grid using Rust. Practice algorithmic problem solving for coding interviews with real-world examples.

Learn to reverse the order of words in a string, manage extra spaces, and prepare for coding interviews with practical string manipulation.

Make coding interviews foolproof with insights from the trusted developer community. Improve the accuracy and effectiveness of your assessment process.

Learn how to generate all subsets of elements efficiently using C# for coding interview problems involving combinations and permutations.

Demystifying Algorithms, Data Structures and Coding Interviews. Click to read Faangshui - Algorithms, Data Structures & Coding Interviews, by Nurbo Kusmagul, a...

Learn how to divide chocolate chunks optimally to maximize minimum sweetness for coding interview problems from Facebook.

I wanted to compute 80th term of the Fibonacci series. I wrote the rampant recursive function,int fib(int n){ return (1==n || 2==n) ? 1 : fib(n-1) +...

Learn about graph types, representations, and fundamental graph traversal algorithms to solve common coding interview problems effectively.

Learn how to find the right interval for each interval using heaps to optimize time and space complexity in coding interviews.

Learn essential math and geometry concepts like GCD, distances, slopes, and polygon validity to solve coding interview problems efficiently.

Master coding interviews with DSA Prep - curated DSA problems + automated spaced repetition tracker. Filter by company (Google, Amazon, Meta), track progress,...

Review key plagiarism detection methods and related coding interview questions to sharpen problem-solving skills for top tech companies.

Recap key Twitter feature implementations that mirror common coding interview questions at top tech companies. Build skills to recognize and solve similar...

Learn to serialize and deserialize N-ary trees with custom algorithms in Ruby, a key skill for coding interviews involving tree data structures.

From my experience in interviewing software developers over the years, I learned that there is a bit of imposter syndrome and a few self-confidence issues devs...

Learn how to identify the corrupt pair with missing and duplicated numbers in an array using the cyclic sort pattern for coding interviews.

HackerRank is the market-leading coding test and interview solution for hiring developers. Start hiring at the pace of innovation!

An anonymous reader quotes The Register: People applying for software engineering positions at companies are often asked to solve problems on a whiteboard,...

Learn to implement regex matching with '.' and '*' in Rust, enabling full string pattern matching for coding interview problems.

Learn to efficiently pick a random index of a target number in an array with duplicates, optimizing memory for large datasets.

As of 2024, 88% of tech companies have implemented a skills-based model, reflecting a shift toward objective evaluation processes. How can you be sure the

Learn to implement a frequency stack that returns the most frequent elements efficiently. Gain skills to solve real-world stack problems in interviews.

Learn how to decode digit strings into letters using dynamic programming and find all possible decoding ways with efficient solutions.

Learn to determine the minimum time for all oranges to rot in a grid using algorithmic patterns common in coding interviews.

Learn to sort a binary array efficiently using C# with practical algorithms for coding interviews. Practice arranging zeros and ones in order.

Learn to solve network communication problems with hands-on features like message propagation, routing, and synchronization in coding interviews.

Learn how to find common free time intervals from multiple schedules using interval merging techniques for coding interviews.

Prepare for coding interviews with premium DSA cheatsheets & System Design notes. Easy revision, proven interview patterns, quick download. Start your prep...