OA1 & OA2

Phone screen:

• Leadership Principles (LP)
• https://leetcode.com/problems/serialize-and-deserialize-binary-tree

Onsite (From 9:30am - 1:30 no lunch or rest)

Round 1:

• 20 mins LP
• Design Chat App. Follow-up: Chat Room (Object Oriented Design).

Round 2:

• 20 mins LP
• https://leetcode.com/problems/word-search-ii

Round 3:

• 20 mins LP
• https://leetcode.com/problems/next-permutation

Round 4: [Bar Raiser]

• 30 mins LP
• Design Parking Lot (System Design).

========== UPDATE =============
Since many people asked How I prepared:

• I bought and read through CTCI book
• Started solving LC from top liked questions (Easy first).
• Tried to solve it first in 30mins for easy, 50 for medium. If I can't do it in this time range, I checked solution writing approach then re-do, after that check Discussion for more ways to solve a question.
• Read this book since it is for people with more experience EPI book (Python ver, you can buy different language ver.)
• Bought a Premium and did whatever company's tag that I will be interviewing with.
• Then I started watching SD videos and reading:
  
  https://github.com/donnemartin/system-design-primer
  https://www.educative.io/collection/5668639101419520/5649050225344512

========== My background =============

• I have 1 Year of Experience. BS in IT (not CS)
• I started reading Blind (app) or teamblind.com to get motivation from people's compensation.
• I have done 300 LC. I started LC since March 2019 without knowing any CS fundamental. Didn't know what time/space complexity were.
• I did LC everyday after work + weekend. I didn't rest and sleep only 4-5hrs/day.
• I got onsite with Google in May (Failed), Facebook in June (Failed), Apple in July (Failed) and Amazon in July (Passed).
• I will try Linkedin, Microsoft, Twitter and Google (my dream company) again after 6 months.
  Thanks LC community.