Jamboree Education Software Developer Interview Questions and Answers

There were 3 coding questions, all of them were medium level difficulty. Typically people who solved 2 questions correctly were shortlisted for the interview rounds.

Q1. Rainwater trapped question and some optimisations, after that some additional changes to the question were added.
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Q2. Print zigzag matrix
Ans. 
Prints a zigzag matrix
• Create a 2D array with the desired number of rows and columns

• Use nested loops to iterate through the array

• Alternate the direction of iteration to create the zigzag pattern

• Print the elements of the array in the desired format
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Q1. Explain about projects in deep and some questions related to that.
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Q2. Find a subset of an array having a target sum.
Ans. 
Given an array of strings, find a subset that adds up to a target sum.
• Use a recursive approach to explore all possible subsets

• Start with an empty subset and add elements one by one

• Keep track of the current sum and check if it matches the target sum

• If the sum exceeds the target, backtrack and remove elements

• Return the subset if found, otherwise return an empty subset
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Q1. Tell me a thing in which earlier you struggled and after some rigorous practice and dedication you excelled.
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Q2. Explain a moment in life where you showcased your leadership and collaborative skills.
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Q1. Explain about Event loop
Ans. 
Event loop is a mechanism that allows for asynchronous programming by handling events and callbacks.
• Event loop is responsible for handling and executing events and callbacks in a non-blocking manner.

• It continuously checks the event queue and processes events one by one.

• Event loop is commonly used in JavaScript for handling asynchronous operations like setTimeout, setInterval, and AJAX requests.
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Ask to create a database design and API for a todo list app

Q1. Why do you want to join Byjus
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There was 2 coding question
One was easy One was very Difficult
20 MCQ question from Operating system and DBMS

Q1. First question was binary search in unsorted arrays So here i have asked about sorting algorithms all sorting algorithms must be clear
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Q2. Second question was to find longest consecutive subarray.
Ans. 
Find the longest consecutive subarray.
• Iterate through the array and keep track of the current subarray length.

• Update the maximum length as you iterate.

• Reset the current subarray length when a non-consecutive element is encountered.
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Q1. OOPS related question Heap insertion deletion question Hashing Spanning tree
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Q2. Minimum Spanning tree Implementation of MST
Ans. 
Minimum Spanning Tree (MST) is a tree that connects all vertices in a graph with minimum total edge weight.
• MST can be found using Prim's algorithm or Kruskal's algorithm.

• Prim's algorithm starts with a single vertex and adds the closest vertex to the tree until all vertices are included.

• Kruskal's algorithm starts with the edges with the lowest weight and adds them to the tree as long as they don't create a cycle.

• MST has...read more
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Q1. Basic questions for ADF
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Q1. Basic HR round for CTC and notice period
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Good with easy questions

Q1. Questions around my projects
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Q1. Salary discussion round with HR
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