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2 questions were given , one was easy, other one leetcode hard
A class is a blueprint for creating objects in object-oriented programming. Basic OOP concepts include encapsulation, inheritance, and polymorphism. SQL concepts include querying databases using SQL commands.
A class is a template for creating objects with properties and methods.
Encapsulation is the concept of bundling data and methods that operate on the data within a single unit.
Inheritance allows a class to inherit p...
Polymorphism is the ability of a function or method to behave differently based on the object it is called with.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).
Example: Inheritance in object-oriented programming languages like Java allows for polymorphism.
Example: A met...
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I applied via Other and was interviewed in Sep 2018. There were 3 interview rounds.
I applied via Company Website and was interviewed before Nov 2020. There was 1 interview round.
I applied via Approached by Company and was interviewed before Nov 2022. There were 3 interview rounds.
Brush up on DS and Algorithms
posted on 24 Aug 2024
I applied via Referral and was interviewed before Aug 2023. There were 4 interview rounds.
Find the longest subsequence in an array with sum zero.
Iterate through the array and keep track of the running sum.
Store the running sum in a hashmap along with the index.
If the same sum is encountered again, the subsequence between the two indices has a sum of zero.
The diameter of a tree is the longest path between two leaf nodes in the tree.
Calculate the longest path between two leaf nodes in the tree
This can be done by finding the height of the left and right subtrees and adding them together
The diameter of the tree is the maximum of either the diameter of the left subtree, the diameter of the right subtree, or the sum of the heights of the left and right subtrees
Design a hotel booking system for managing reservations and availability.
Use a database to store hotel information, room availability, and reservations.
Implement user authentication and authorization for booking.
Include a search feature for users to find available rooms based on their criteria.
Allow users to make reservations, modify or cancel them.
Send confirmation emails to users after successful bookings.
Divide one big integer by another
I applied via Company Website and was interviewed before Dec 2023. There was 1 interview round.
Coding question related to tree - BFS
Logical and qunatative
Ds related questions
I applied via Recruitment Consulltant and was interviewed in May 2022. There were 2 interview rounds.
Types of data include numerical, categorical, ordinal, and binary.
Numerical data includes continuous and discrete values, such as height and age.
Categorical data includes non-numeric values, such as colors and types of fruit.
Ordinal data includes values with a specific order, such as rankings and ratings.
Binary data includes only two possible values, such as true/false and yes/no.
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