Chaayos Shift Incharge Interview Questions and Answers

2 coding problems.

One is on Hasmap

second one is on Tree

Q1. Pair programming Round
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Q2. One problem step by step solving with unit test cases maintaining time complexity and space complexity.
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Q1. High level Design
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Q1. Techno - Managerial
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Q1. Normal discussion benefits and salary
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Q1. Questions around spring boot. Rotate and array k times. Merge two sorted lists.
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Java-based coding, streams and lambda, design patterns

Q1. Write design for URL sortner
Ans. 
Design a URL shortener system
• Use a unique identifier for each long URL to generate a short URL

• Store the mapping of short URL to long URL in a database

• Implement a redirect mechanism to redirect short URLs to their corresponding long URLs

• Consider scalability and performance while designing the system
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Q2. Program to detect cycle on linked list
Ans. 
Use Floyd's Tortoise and Hare algorithm to detect cycle in a linked list.
• Initialize two pointers, slow and fast, at the head of the linked list.

• Move slow pointer by one step and fast pointer by two steps.

• If they meet at any point, there is a cycle in the linked list.
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Q1. Asked about resume and then some questions on Linkedlist, Stack
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Q2. Java garbage collection
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Q3. What is Bean in Spring
Ans. 
A bean in Spring is a Java object that is instantiated, assembled, and managed by the Spring IoC container.
• Beans are defined in the Spring configuration file using XML or annotations.

• Beans are singleton by default but can be configured as prototype.

• Beans can have dependencies injected by the container.

• Example: @Component annotation in Spring creates a bean.

• Example:
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Q1. Binary search and tree
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Q2. Discussion on project
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Mostly dynamic programming and tree based programs

Q1. Coding Coordinate geometry problem
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Q2. Coding on trees
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Q1. HLD / LLD , Java technical questions
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Q2. Pair programming
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