Intercontinental Exchange Senior 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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Write code for advance surrying in js

Implement custom hook for api call

Q1. Basic questions arounf my previous work
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Q2. Technical questions around performance and code optimization
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Creating a Web App using React JS and Java Servlets

Q1. Binary search algo quetion
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Basic problem solving

Q1. Implement drag and drop
Ans. 
Implementing drag and drop functionality in UI development.
• Use HTML5 drag and drop API

• Add 'draggable' attribute to elements you want to drag

• Implement 'dragstart', 'dragover', 'drop' events

• Use CSS to style dragged elements

• Consider using libraries like jQuery UI for more complex drag and drop interactions
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Q2. Basic JS questions
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Q1. Culture fit test
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Mcqs based on cs fundamentals and 2_3 coding questions

Q1. 2-3 DSA questions to be written on paper in the interview itself
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Q2. Merge 2 sorted Linked list into 1
Ans. 
Merge two sorted linked lists into one.
• Create a new linked list to store the merged list.

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

• Move the pointer of the list with the smaller value to the next node.

• Repeat the comparison and addition until one of the lists is empty.

• Add the remaining nodes from the non-empty list to the new list.

• Return the new merged list.
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Q1. A full cv analysis interview round discussion on all the projects and team work experience
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