LinkedIn Interview Questions, Process, and Tips

More focus on dp,graphs.

Q1. Focus on backend concepts,routing.
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Q2. Question on flood fill algo,backtracking.
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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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This was a technical round where they check how you approach a problem. The questions were around SQL, Linux commands, basics of HTML and Rest API basic troubleshooting

Q1. Behavioural Round where managers interact directly with you on your previous experiences, achievements and failures
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Q1. One more culture fit round where manager checks your hunger for learning and contributing to the company. Also, checks if you align with Linkedin's culture & values
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Q1. This was my last round with HR where they discuss your salary & benefits
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Q1. General discussion on previous experiences
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Case study on any industry review, with inmail, discovery call and elevator pitch

Online test on hacker rank . difficult level

Assignmemt on sorting array

LFU cache implimentation

I was asked a question based on strings that required BFS to solve.

Q1. Given a binary tree, do right rotation on each node.
Ans. 
Perform right rotation on each node of a binary tree.
• Start from the root node and perform right rotation on each node in a recursive manner.

• Update the parent-child relationships accordingly after each rotation.

• Ensure that the binary tree structure is maintained throughout the process.
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