tykurtz

GROKKING NOTES

I liked the way Grokking the coding interview organized problems into learnable patterns. However, the course is expensive and the majority of the time the problems are copy-pasted from leetcode. As the explanations on leetcode are usually just as good, the course really boils down to being a glorified curated list of leetcode problems.

So below I made a list of leetcode problems that are as close to grokking problems as possible.

Pattern: Sliding Window

• https://leetcode.com/problems/maximum-subarray/ # Close enough
• https://leetcode.com/problems/minimum-size-subarray-sum/

avidLearnerInProgress

List of list by LeetCode user @deepika135

• DP for beginners by @wh0ami - https://leetcode.com/discuss/general-discussion/662866/dp-for-beginners-problems-patterns-sample-solutions || [LIST - https://leetcode.com/list/x1k8lxi5]
• Graph for beginners by @wh0ami - https://leetcode.com/discuss/general-discussion/655708/graph-for-beginners-problems-pattern-sample-solutions/562734 || [LIST - https://leetcode.com/list/x1wy4de7]
• Sliding window for beginners by @wh0ami - https://leetcode.com/discuss/general-discussion/657507/sliding-window-for-beginners-problems-template-sample-solutions/562721 || [LIST - https://leetcode.com/list/x1lbzfk3]
• DP Patterns by @aatalyk - https://leetcode.com/discuss/general-discussion/458695/dynamic-programming-patterns Leetcode patterns from edu_cative_dot_io by @late_riser - https://leetcode.com/discuss/general-discussion/457546/LeetCode-Problem-Patterns-from-***
• List of questions sorted by common patterns by @Maverick2594 - https://leetcode.com/discuss/career/448285/List-of-q

jaytaph

Compute
    EC2                                                 Virtual Private Servers
    Lightsail                                           Amazon's hosting provider (vps, dns, storage)
    Lambda                                              Functions you can run, written in Python, NodeJS, Go etc. Can run many in parallel.
    Batch                                               Run software jobs on EC2 machines
    Elastic Beanstalk                                   Run software on managed virtual machines
    Serverless Application Repository                   Repository of serverless applications that you can deploy (on lambda)
    AWS Outposts                                        Basically run Amazon services on your own hardware (datacenter)
    EC2 Image Builder                                   Create EC2 (ami?) images automatically

krishnadey30

Array

• Two Sum
• Best Time to Buy and Sell Stock
• Contains Duplicate
• Product of Array Except Self
• Maximum Subarray
• Maximum Product Subarray
• Find Minimum in Rotated Sorted Array

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?