ByteDance Senior Software Engineer Interview Questions and Answers

45 min round. Similar to Leetcode medium level question.

45 min coding round, 2 question asked

Q1. System design of proximity service
Ans. 
Design a system for proximity service
• Utilize geolocation data to track user locations

• Implement algorithms to calculate proximity between users

• Use real-time updates to notify users of nearby contacts
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Q1. Behavioral questions
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I was asked question on sliding window on finding the largest subarray with all distinct numbers. The interviewer was very helpful.

Mostly DSA expect DP, graph problems

Q1. Graph traversal + DP
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React based
problem solving round

Asked medium level graph question.

Asked LLD question with at flow executable.

Q1. Asked HLD questions.
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It was a ideal machine coding round. Consisting of a question to be completed within 45 mins. For a given manager to employee hierarchy, count direct + indirect repartees.

Q1. Print the nodes of a n-ary tree in an arc wise manner as seen from the outside.
Ans. 
Print nodes of n-ary tree in arc wise manner from outside
• Traverse the tree level by level from outside to inside

• Use a queue to keep track of nodes at each level

• Print the nodes at each level in a clockwise or anticlockwise manner
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Q1. Interviewer asked introduction
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Q2. After Introduction he will dig into my projects and after that one DSA Problem
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