PharmEasy Backend Developer Interview Questions and Answers

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
Answered by AI
Add your answer

Given two soted arrays merge them from a single sorted array with all items in non-decreassing order

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.
Answered by AI
Add your answer

Q1. It was a simple design round and some technical questions on skills mentioned in your resume
Add your answer

Given two soted arrays merge them from a single sorted array with all items in non-decreassing order