Amazon Software Engineer Interview Questions, Process, and Tips

DSA, OOP, DBMS, system design

Q1. Cant say because of NDA, make a package dependency ood.
Ans. 
Create a package dependency diagram based on object-oriented design principles.
• Identify the main classes/modules in the system

• Determine the relationships between classes/modules (e.g. inheritance, composition, aggregation)

• Visualize the dependencies between classes/modules using arrows or lines

• Consider using UML diagrams to represent the package dependency
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Q1. Bus transit system design
Ans. 
Designing a bus transit system involves planning routes, schedules, stops, and ticketing systems.
• Consider the population density and traffic patterns of the area to determine the number and frequency of bus routes.

• Create a network of bus stops strategically located near residential areas, commercial centers, and transportation hubs.

• Implement a reliable ticketing system that allows for cashless payments and offers optio...read more
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Q2. Priority queue related
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Two normal basic DSA questions

LC Medium question regarding string decode

Q1. Your past experience
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Q2. Why you want to work at amazon
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Q1. DSA question. Detect Symmetric Binary tree.
Ans. 
Detect if a binary tree is symmetric.
• Check if the left and right subtrees are mirror images of each other.

• Use a recursive approach to compare corresponding nodes.

• Base case: if both nodes are null, return true.

• If one node is null and the other is not, return false.

• If the values of the nodes are not equal, return false.

• Recursively check if the left subtree of the left node is symmetric to the right subtree of the right n...read more
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Q2. Merge point of twi linked list.
Ans. 
Finding the merge point of two linked lists.
• Traverse both linked lists to find their lengths.

• Move the pointer of the longer list ahead by the difference in lengths.

• Iterate both lists simultaneously until the merge point is found.
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Q1. DSA only with higher difficulty with SDE3.
Ans. 
The question is about advanced data structures and algorithms for a senior software engineer role.
• Focus on advanced data structures like AVL trees, B-trees, and tries

• Discuss complex algorithms like Dijkstra's algorithm, A* search algorithm, and dynamic programming

• Highlight experience with optimizing time and space complexity

• Provide examples of solving challenging coding problems or implementing complex algorithms
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Q1. System Design and Project.
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