Brane Enterprises Interview Questions, Process, and Tips

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
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Q2. Oops related output based questions
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2 coding questions were asked

Q1. 2 More coding questions were asked
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Q2. Matrix chain multiplication
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Q3. Spiral Matrix Code
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Q1. Explain multithreading
Ans. 
Multithreading is the ability of a CPU to execute multiple threads concurrently, allowing for better performance and responsiveness.
• Multithreading allows multiple tasks to be executed simultaneously on a single CPU core.

• Each thread has its own set of registers and stack, but shares the same memory space.

• Threads can communicate with each other through shared memory or synchronization mechanisms like mutexes and semaphor...read more
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Q2. Rotate the 2d matrix
Ans. 
Rotate a 2D matrix by 90 degrees clockwise
• Transpose the matrix (swap rows with columns)

• Reverse each row to get the final rotated matrix
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Q1. Some angular questions
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Q1. Questionss on blockchain basics
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Q2. Regarding ethereum blockchian
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Q1. Explain the difference client side routing server side routing
Ans. 
Client side routing is handled by the browser, while server side routing is handled by the server.
• Client side routing is faster as it does not require a server request for each page change.

• Server side routing involves the server processing each request and returning the appropriate page.

• Client side routing is commonly used in single page applications (SPAs) with frameworks like React or Angular.

• Server side routing is u...read more
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Q2. Js questions (map,filter, reduce) polyfills recursion
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Q1. Why do you want the join org
Ans. 
I am passionate about creating innovative software solutions and believe that org offers a great platform for growth and learning.
• Passionate about creating innovative software solutions

• Believe org offers a great platform for growth and learning
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Q1. System design for autonomous vehicle
Ans. 
Designing a system for autonomous vehicles involves integrating sensors, algorithms, and control systems to enable safe and efficient navigation.
• Consider sensor fusion to combine data from cameras, lidar, radar, and GPS for accurate perception of the vehicle's surroundings.

• Implement localization techniques such as SLAM (Simultaneous Localization and Mapping) to enable the vehicle to understand its position in real-time...read more
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Q2. Ros related basic to advanced questions
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Q1. Merge Two sorted Linked List
Ans. 
Merge two sorted linked lists into a single sorted linked list.
• Create a new linked list to store the merged result.

• Compare the values of the nodes from both input lists and add the smaller value to the result list.

• Move the pointer of the list with the smaller value to the next node and continue until both input lists are empty.
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Q2. Merge sort Sorting Algo
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Q1. Leetcode medium on graph
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Q2. Longest Increasing Subsequnce
Ans. 
Find the length of the longest increasing subsequence in an array.
• Use dynamic programming to keep track of the longest increasing subsequence ending at each index.

• Initialize an array to store the length of the longest increasing subsequence ending at each index.

• Iterate through the array and update the length of the longest increasing subsequence ending at each index based on previous values.

• Return the maximum value in ...read more
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Q1. Tell about your self
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Q2. What difficulties u came through in internship
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