CureSkin Backend Developer Interview Questions and Answers

Q1. DSA Medium difficulty question Schema Design Low level design Amazon reviews page
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Q1. Number of islands code
Ans. 
Count the number of islands in a 2D grid of 1s and 0s.
• Use DFS or BFS to traverse the grid and mark visited cells.

• Count the number of times traversal starts from an unvisited 1.

• Consider edge cases like empty grid, all 0s or all 1s.
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Q1. It was a simple design round and some technical questions on skills mentioned in your resume
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MCQs and 1 coding question

Q1. Delete one child nodes,
Ans. 
To delete one child node, we need to identify the parent node and remove the child node from its list of children.
• Identify the parent node of the child node to be deleted

• Remove the child node from the parent node's list of children
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Q1. Project and internship discussion And one question discussion on how data is stored in db
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Q1. Nothing nothing nothing nothing
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3 Leetcode style questions , 2 medium , 1 hard .

Q1. Design a cab booking system using oops
Ans. 
A cab booking system designed using OOP principles
• Create classes for Cab, Customer, Driver, and Booking

• Use inheritance and polymorphism to handle different types of cabs and bookings

• Implement methods for booking a cab, assigning a driver, and calculating fare

• Use encapsulation to protect data and ensure data integrity
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