Junglee Games Software Developer Intern Interview Questions and Answers

Round duration - 90 Minutes
Round difficulty - Medium

The first round was scheduled in the evening time.
First of all interviewer introduced himself and after my introduction 
He directly shoot first DSA question. The question was easy but conceptual. I have solved some question with same concept and he ask me to share the screen and code in online compiler. Finally I was able to get correct output with all the use cases and I was like "Half work done!"
Then he asked me very core concepts of JavaScript along with that Some Output based questions.
Then finally he asked me theory questions on React along with my experience in React. 
The interviewer was very helpful as well as polite. I don't think if he will not help me during interview I could crack the interview

Q1. 
Is the Sentence a Pangram?
Ninja is relocating to a place called NinjaGram, and for school admission, he is required to identify if a given sentence is a pangram. Your task is to assist Ninja in determini...read more
Ans. 
Yes, the sentence is a pangram if it includes every letter of the English alphabet at least once.
• Check if the sentence contains all 26 letters of the English alphabet.

• Convert the sentence to lowercase to simplify the checking process.

• Use a set to keep track of the letters present in the sentence.

• Iterate through the sentence and add each unique letter to the set.

• After iterating, check if the set contains all 26 letters.
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Simple question on maths

Q1. Explain OOPS concept
Ans. 
OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPS focuses on creating objects that interact with each other to solve complex problems

• Key principles include encapsulation, inheritance, polymorphism, and abstraction

• Encapsulation ensures that the internal state of an object is hidden from the outside world

• Inheritance allows a class to inherit...read more
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Q2. Coding array questions
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Q1. Search in 2d matrix
Ans. 
Search for a target value in a 2D matrix efficiently.
• Use binary search on rows to find the potential row where the target value may exist.

• Then use binary search on that row to find the target value.
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Q2. Find quadraplets that sum to target
Ans. 
Find quadraplets in an array that sum up to a target value.
• Use a nested loop to iterate through all possible combinations of quadraplets.

• Keep track of the sum of each quadraplet and compare it to the target value.

• Return the quadraplets that match the target sum.
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Q1. Oops concept Js related output questions
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Few questions that would involve problem solving. Basic 10th std math would suffice

Had few DSA questions.

Q1. Technical interview
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Q1. About job, expection etc
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Q1. Write a program to check if string is a anagram
Ans. 
Program to check if a string is an anagram
• Create a function that takes in two strings as input

• Remove all spaces and convert both strings to lowercase

• Sort both strings and compare if they are equal to determine if they are anagrams
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Q2. What is react lifecycle method
Ans. 
React lifecycle methods are special methods that are automatically called by React at specific points in a component's life cycle.
• React components have several lifecycle methods such as componentDidMount, componentDidUpdate, componentWillUnmount, etc.

• These methods allow developers to perform actions at specific points in a component's life cycle, such as fetching data, updating the UI, or cleaning up resources.

• Understa...read more
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Create a web app to perform cred operation

General aptitude questions

Abstract topic group discussion

Q1. Technical interview covering topics on oops , data structures , conditional statements.
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Q1. General questions- introduction , how previous rounds went ,hobbies , what do you know about our company , situation based questions.
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Questions based or percentage, profit loss, ratio

Q1. Explain about stacks
Ans. 
Stacks are a data structure that follows the Last In First Out (LIFO) principle.
• Elements are added and removed from the top of the stack

• Common operations include push (add element) and pop (remove element)

• Stacks can be implemented using arrays or linked lists

• Examples of stack usage include function call stack and undo/redo functionality in text editors
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Q2. To find middle number in the linked list
Ans. 
To find the middle number in a linked list.
• Traverse the linked list using two pointers, one moving twice as fast as the other.

• When the fast pointer reaches the end, the slow pointer will be at the middle node.

• If the linked list has even number of nodes, there will be two middle nodes. Return either one.
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Q1. Introduction , hobbies, goals
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Q2. Strength, weakness, short term and long term goals
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