Amazon Interview Experience SDE1

Amazon Interview Experience SDE-1
This was a hiring drive at the Chennai office. Around 40 people attended.

Day 1 interviews

Round 1: Written Round

https://www.geeksforgeeks.org/longest-palindrome-substring-set-1/

https://www.geeksforgeeks.org/convert-a-given-tree-to-sum-tree/

https://www.geeksforgeeks.org/reverse-a-list-in-groups-of-given-size/

Round 2: Tech Round

https://www.geeksforgeeks.org/maximum-sum-such-that-no-two-elements-are-adjacent/
https://www.geeksforgeeks.org/maximum-sum-in-circular-array-such-that-no-two-elements-are-adjacent/

Questions on Dynamic programming – Overlapping subproblems and Optimal substructure property for the above questions
Full Code, Time and Space complexity

Round 3: Tech Round

Question 1: https://www.geeksforgeeks.org/k-th-distinct-or-non-repeating-element-in-an-array/ – Code

Question 2: XOR Linked list – discussion and tracing an example

Question 3: https://www.geeksforgeeks.org/given-a-sequence-of-words-print-all-anagrams-together-set-2/
Given Hash-based and Trie based approach and code for Hash-based implementation

Question 4: Check whether N is reachable with numbers a and b instead of 0 and 1 using Fibonacci series. (-INF<=a, b<=INF) Full code.

Question 5: https://www.geeksforgeeks.org/convert-a-given-binary-tree-to-doubly-linked-list-set-4/ Full Code.

Day 2 – Interviews

Round 4: Bar Raiser

1.Projects Discussion
2.More Behavioural questions and Scenario-based question(Regarding Cloud Architecture)
3.Design patterns – Singleton, Builder, Prototype, Factory.
4.Questions involving REST API’s.
5.Finally a problem: Pseudo code and tracing an example
https://www.geeksforgeeks.org/median-of-stream-of-integers-running-integers/
Suggested 3 ways of solving the above problem comparing their time and space complexities

Round 5: Hiring Manager Round

1.More discussion on projects
2.Still more behavioural questions and Scenario-based questions.
3.Discussion on Restful Web Services.


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