ACKO UI Developer Interview Questions and Answers

Q1. Merge two sorted linked lists
Ans. 
Merge two sorted linked lists into a single sorted linked list
• Create a new linked list to store the merged result

• Iterate through both input linked lists and compare nodes to determine the order in which they should be added to the result list

• Handle cases where one list is longer than the other
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Q2. Check if paranthesis are balanced or not
Ans. 
To check if parentheses are balanced, use a stack data structure to keep track of opening and closing parentheses.
• Use a stack to push opening parentheses and pop when encountering a closing parenthesis

• If stack is empty when encountering a closing parenthesis, return false

• After iterating through all parentheses, if stack is empty, return true
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Q1. Right view of a Binary Search tree
Ans. 
The right view of a Binary Search Tree shows the nodes that are visible when viewing the tree from the right side.
• The right view of a Binary Search Tree includes the rightmost node at each level.

• Nodes at each level that are not visible from the right side are not included in the right view.

• Example: For the Binary Search Tree with values 1, 2, 3, 4, 5, the right view would be 1, 3, 5.
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Q2. Few javascript questions on how to parse a json object without using inbuilt libraries.
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Q1. Closures, setTimeout, Eventloop in javascript
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Q2. How to center a div in css3
Ans. 
To center a div in CSS3, use the 'margin: auto;' property along with a set width.
• Set the width of the div

• Use 'margin: auto;' to center the div horizontally

• Make sure the parent container has a defined width
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Q3. Call , bind and apply functions in javascript
Ans. 
call, bind, and apply are methods used to manipulate the context of a function in JavaScript.
• call() is used to invoke a function with a specified 'this' value and arguments provided individually.

• bind() is used to create a new function with a specified 'this' value and initial arguments.

• apply() is used to invoke a function with a specified 'this' value and arguments provided as an array.
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Creating a Web App using React JS and Java Servlets

I have to write code for a load balancer. The code should be testable and imahoild be thread safe

A basic coding question was asked regarding a buisness logic.

Q1. How to change a object's data outside the class.
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There were DSA questions and time limit was 1 hr

Q1. Calculate factorial using tabulation
Ans. 
Factorial calculation using tabulation in dynamic programming
• Create an array to store factorial values up to n

• Initialize the array with base cases (0! = 1, 1! = 1)

• Iterate from 2 to n and calculate factorial using previous values in the array

• Return the factorial value at index n
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Q2. Wildcard matching question
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DSA Problems on LinkedList and Stack.

Q1. HM Round on projects and all
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