Warner Bros. Discovery Interview Questions, Process, and Tips

Q1. Here is everything asked in round 1 after they ghosted me # Find if string contains all unique character. # STR1 = 'DDISCOVERY' return TRUE # STR2 = 'WARNER BROTHERS DISCOVERY' return FALSE # fro...read more
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Questions on dp... longest increasing sequence

Q1. Questions on arrays....
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Q2. Questions on stacks... min stack
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Q1. It is usually problem solving round where leetcode tagged questions are asked but in my case it as generic discussion related to work, technical background etc.
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Q1. Discussions around current system.
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Q2. Everything discussed like release process, how to debug in such scenario
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Q3. Some behavioural questions
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Q1. Design current system
Ans. 
Designing the current system for a Senior Software Engineer position
• Identify the current system architecture and components

• Analyze the strengths and weaknesses of the current system

• Propose improvements or enhancements based on analysis

• Consider scalability, performance, security, and maintainability in the design
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Q2. Design Video Streaming service like Netflix
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Design a video streaming service similar to Netflix
• Utilize a content delivery network (CDN) for efficient video streaming

• Implement recommendation algorithms based on user preferences and viewing history

• Include a user-friendly interface with personalized profiles and watchlists

• Ensure secure payment processing and user data protection

• Offer offline viewing options for subscribers on mobile devices
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Q1. Find max salary using Java stream api
Ans. 
Using Java stream api to find max salary
• Use stream() method to convert the list of salaries to a stream

• Use mapToInt() method to convert the salaries to IntStream

• Use max() method to find the maximum salary
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Q2. A code was given and need to discussion around its LLD, HLD. It was open ended discussion.
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Medium Coding questions

Q1. Find if two words are Isomorphism or not
Ans. 
Isomorphism of two words is determined by mapping each character of one word to another in a one-to-one correspondence.
• Check if the lengths of the two words are equal.

• Create a mapping of characters from one word to another.

• Ensure that each character from one word maps to a unique character in the other word.

• For example, 'egg' and 'add' are isomorphic as 'e' maps to 'a' and 'g' maps to 'd'.
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