Celebal Technologies Software Developer Interview Questions and Answers

Basic DSA questions, best time to buy and sell stock and its variation

Q1. Basic nosql vs sql questions
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Q2. Designing system for google playstore
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1) Finding and removing loop in linked list. 2)find pair of given sum in binary tree

Q1. Print bottom view of binary tree
Ans. 
Print the bottom view of a binary tree
• Use a map to store the horizontal distance and node value at each level

• Perform a level order traversal of the binary tree

• Update the map with the node value at each horizontal distance

• Print the node values in the map for the bottom view
Answered by AI
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Q2. Oops related output based questions
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1st round is aptitude and pesudocode

Q1. Mostly python questions
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Q2. List questions and basic to mediumprogram
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In first round 4 coding question like 1 dsa 2 database and one is api and question is very simple . coding round was conducted in hackerrank

Q1. DSA QUESTION LIKE TREE AND GRAPH
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Q2. DP AND SORTING APPROACH
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Again same but dsa question and oops concept in deep level

Q1. Questions were completely based on data structures and algorithm
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Q2. SQL based questions were also asked
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Q1. Rest Apis questions
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Q1. Core java and OOPS and LLD
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Q1. Something based on hashet
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Q2. Same with this too
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Basic questions were given..bar graphs,pie charts

Tested on quantitative aptitude along with technicala java mcqs

3 Java questions were given