Code best practices java
Here are 10 coding best practices that have helped me write better Java code— and how you can apply them in your projects. 1. Avoid Null References Using Optional Problem: NullPointerException is one…
FencePost & Semi-Open Intervals
Let me explain fencepost errors and semi-open intervals in a clear and detailed manner: 1. Fencepost Error A fencepost error occurs in programming when an algorithm includes one extra or…
DSA Coding Interview Concepts
Arrays:Binary search,Sorting,sliding window,2 pointer, prefix sum, stacks,Greedy,DPQuestions:704. Binary Search (E)74. Search a 2D Matrix(M)153. Finding Minimum in a sorted array(M)33. search in a rotated array(M)4. Median of two sorted arrays…
Interview resources
Resources: https://medium.com/@shivambhadani_/system-design-for-beginners-everything-you-need-in-one-article-c74eb702540b [Super Awesome👆] https://workat.tech/machine-coding/practice https://www.youtube.com/playlist?list=PLMCXHnjXnTnvo6alSjVkgxV-VH6EPyvoX https://codewitharyan.com/system-design/low-level-design https://github.com/lavakumarThatisetti/Machine-Coding-Round
Interview experience -2
Cleared Google and Meta after 5 months of grind [L5 Offer] I've been meaning to write this for quite some time and finally got to it today. This is me…
Interview experience – 1 -Staff Engineer
Staff Engineer offer - how I prepared and interview experience Got offer from Reddit for the staff engineer role for their infra (Remote, US). I have ~6 YOE. This was…
Code Interview Checklist
Ask for clarifications on user input, constaints….etc Discuss multiple approaches and trade-offs (i.e discussed a brute force solution and its time complexity as well as an improvement and the new…
System Design Questions
-----Question 1: Design a Distributed Metrics Logging and Aggregation SystemCompany(s) asked: Google, Facebook, Amazon, eBay, Datadog, Atlassian-----Question 2: Design a Distributed Stream Processing System like KafkaCompany(s) asked: Amazon, Microsoft, Wise,…
Tree Graph DSA QA
⸻ Tree Answers Basic Questions 1. What is the difference between a binary tree and a binary search tree (BST)? • A binary tree is a tree where each node…
NeetCode 150
CategoryPatterns# QuestionsEasyMediumHardComplexity (Avg Case)ArraysSliding Window, Two Pointers, Prefix Sum18594O(N) - O(N log N)StringsHashing, Two Pointers, Sliding Window14473O(N)Linked ListFast & Slow Pointers, Recursion10352O(N)Stacks & QueuesMonotonic Stack, LRU Cache12273O(N)Binary SearchSearch Space Reduction,…