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Amazon Interview Experience for SDE2 | 3+ years Experienced

  • Difficulty Level : Expert
  • Last Updated : 25 Nov, 2019

Location: Hyderabad

Round 1(Project discussion):

Become a success story instead of just reading about them. Prepare for coding interviews at Amazon and other top product-based companies with our Amazon Test Series. Includes topic-wise practice questions on all important DSA topics along with 10 practice contests of 2 hours each. Designed by industry experts that will surely help you practice and sharpen your programming skills. Wait no more, start your preparation today!

Discussion about my best project and some questions on indexes.

Round 2 (Design):



  1. Design lift
  2. Gave me a sample code in c++(first they ask the language you are comfortable with, mine was c++), and asked me to review it.
  3. Discussion on some projects

Round 3 (Design):

  1. Design notification system (SMS, email and push) – HLD
  2. questions on message queues
  3. max number of 1s in sorted m x n 0, 1 matrix

Round 4 (Design):

  1. Design pacman game (showed the youtube video) – LLD
  2. HLD of the same game

Round 5 (DS and Algo):

  1. Minimum number of operations to make a string balanced. All characters are in [A-Z] and the string is balanced when the frequency of all the characters in the string is same. The only operation that we can do is replace a character with any other character(and only replacement is allowed)
  2. Incoming stream of characters, at every point in the stream, return the first non repeating character
My Personal Notes arrow_drop_up
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