BigBasket Software Engineer Interview Questions and Answers

Q1. Find the leaves of the tree.
Ans. 
Leaves of a tree are the nodes with no children in a tree data structure.
• Traverse the tree and identify nodes with no children.

• Use depth-first search or breadth-first search algorithms to find leaves.

• Examples: In a binary tree, leaves are nodes with no left or right child.

• In a general tree, leaves are nodes with no children in their child list.
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Q2. Find the LCA of tree.
Ans. 
The Lowest Common Ancestor (LCA) of a tree is the shared ancestor of two nodes farthest from the root.
• Start from the root and traverse the tree to find the paths from the root to the two nodes.

• Compare the paths to find the last common node between them, which is the LCA.

• If one of the nodes is an ancestor of the other, then the ancestor node is the LCA.
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Q1. What projects you worked upon?
Ans. 
I have worked on projects involving web development, mobile app development, and data analysis.
• Developed a web application using React and Node.js for a client in the e-commerce industry

• Created a mobile app using Flutter for a startup in the healthcare sector

• Performed data analysis on customer behavior using Python and SQL for a marketing company
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Q2. What internships you did?
Ans. 
I completed internships at ABC Company and XYZ Company during my undergraduate studies.
• Interned at ABC Company working on web development projects

• Interned at XYZ Company assisting with software testing and quality assurance

• Gained hands-on experience in coding, debugging, and problem-solving
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Q1. Tell me about yourself
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Coding mainly on LinkedList and Strings

Q1. Have asked about my previous work experience and STAR pattren questions
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Q1. Templates in golang?
Ans. 
Templates in golang are used for generating text-based output such as HTML or other markup languages.
• Templates in golang are created using the text/template package or html/template package.

• They allow for the separation of code and presentation, making it easier to maintain and update the output format.

• Templates can include variables, control structures, and functions to generate dynamic content.

• Example: {{.Name}} will...read more
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Q2. Channel in golang
Ans. 
Channels in golang are used for communication between goroutines
• Channels are typed conduits through which you can send and receive values with the channel operator <-

• Channels are used to synchronize and communicate between goroutines

• Channels can be created using the make() function with a specified type
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Q1. Basic java understanding questions
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Q2. Few basic SQL questions and mongodb questions
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Online assessment, leet code easy

Live coding assessment, leet code medium

Behavioral asking on past experience