C2L BIZ Software Developer Interview Questions and Answers

3 coding question
2 medium 1 hard

Q1. Online polling system based on OOPs
Add your answer
Q2. Explaining the above code
Add your answer

Q1. Given an array of n numbers , find the kth largest find the sum from a th largest to bth largest n can be huge
Ans. 
Find the sum of kth to bth largest numbers in a huge array efficiently.
• Sort the array in descending order to easily find the kth and bth largest numbers.

• Use a priority queue or min heap to efficiently find the kth and bth largest numbers without sorting the entire array.

• Once you have the kth and bth largest numbers, iterate through the array and sum the numbers between them.
Answered by AI
Add your answer
Q2. Mostly elasticsearch related and company work related questions
Add your answer

DSA + JAVA + Spring boot

LLD (bookmyshow) + DSA

Q1. Implement an immutable class.
Ans. 
An immutable class is a class whose instances cannot be modified after creation.
• Use final keyword for class declaration to prevent inheritance

• Make all fields private and final to prevent modification

• Do not provide setter methods, only getter methods should be used
Answered by AI
Add your answer
Q2. Implement a springboot service that intercepts http requests.
Ans. 
Implement a Springboot service to intercept HTTP requests.
• Create a Springboot application with necessary dependencies.

• Implement a custom interceptor by extending HandlerInterceptorAdapter.

• Override preHandle and postHandle methods to intercept requests and responses.

• Register the interceptor in the WebMvcConfigurerAdapter configuration class.
Answered by AI
Add your answer

Basic CS Core questions

Q1. About yourself hobbies
Add your answer