Amazon Software Developer Interview Questions, Process, and Tips

90 mins technical test
2 DSA questions

Q1. Questions based on sliding window
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Q1. What is array and its implementation
Ans. 
An array is a data structure that stores a collection of elements of the same type in contiguous memory locations.
• Arrays have a fixed size determined at the time of declaration.

• Elements in an array are accessed using an index starting from 0.

• Example: string[] names = {"Alice", "Bob", "Charlie"};
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DSA round. 3 questions in 2 hours

Q1. DP on strings basic question with modification
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It was general amazon test

Q1. Question related to binary tree
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Q2. Question filling the well with water
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2 dsa questions , 1 hr round

2 dsa questions, 1 hr round

Q1. Calculator permutation
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Q2. Past experiences
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Q1. Calculator permutation
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Q2. Past experiences
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Q1. Optimizing a recursive function
Ans. 
Optimizing a recursive function
• Identify and eliminate unnecessary recursive calls

• Use memoization to store and reuse previously computed results

• Consider converting the recursive function to an iterative one if possible
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Q2. Java fundamentals
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60 mins | 1 LC hard and 1 LC easy coding | Topological sort and Arrays