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I applied via Recruitment Consultant and was interviewed in Mar 2021. There were 3 interview rounds.
Find common ancestor of 2 nodes in a binary tree
Traverse the tree from root to both nodes and store the paths
Compare the paths to find the last common node
Use recursion to traverse the tree and find the common ancestor
To find the minimum element of a stack in O(1) time, maintain a separate stack for minimum values.
Create a separate stack to store minimum values
Push the minimum value onto the minimum stack every time a new value is pushed onto the main stack
Pop the minimum stack every time the main stack pops a value
The top of the minimum stack will always contain the minimum value
Sort a binary array of 0s and 1s and optimize the code.
Use two pointers approach to swap 0s and 1s
Avoid using sorting algorithms like bubble sort or selection sort
Use a single loop to traverse the array and swap elements
Use XOR operation to swap elements
Explaining Java HashMap internals and behavior when hashcode always returns 1.
HashMap uses hashcode to calculate the index of the bucket where the key-value pair will be stored.
If hashcode always returns 1, all key-value pairs will be stored in the same bucket resulting in poor performance.
In this case, HashMap will use a linked list to store multiple key-value pairs in the same bucket.
Retrieving a value from a HashMap...
I applied via Campus Placement and was interviewed in Nov 2024. There were 2 interview rounds.
Test consists of multiple choice questions which cover basic to medium level of questions of concepts like apptitude, java, reasoning etc
Binary search is a search algorithm that finds the position of a target value within a sorted array.
Binary search works by repeatedly dividing the search interval in half.
It compares the target value with the middle element of the array.
If the target value matches the middle element, the position is returned.
If the target value is less than the middle element, the search continues on the left subarray.
If the target val...
Verbal reasoning, quantitative reasoning, and pseudocode.
I am a dedicated and experienced system architect with a passion for designing innovative solutions.
Over 5 years of experience in system architecture
Strong expertise in designing and implementing complex systems
Proficient in various programming languages such as Java, Python, and C++
Excellent problem-solving and communication skills
Led a team in developing a scalable cloud-based application for a major client
Key concepts of OOP in Java include classes, objects, inheritance, polymorphism, encapsulation, and abstraction.
Classes: Blueprint for creating objects
Objects: Instances of classes
Inheritance: Allows a class to inherit properties and behavior from another class
Polymorphism: Ability to present the same interface for different data types
Encapsulation: Bundling data and methods that operate on the data into a single unit
A...
I applied via Campus Placement and was interviewed in Jul 2024. There were 5 interview rounds.
First round is online test consists of aptitude, coding and english speaking
I am interested in Pega because of its innovative technology and potential for growth. My long term goal is to become a skilled application engineer in the field.
I am drawn to Pega's cutting-edge technology and its ability to streamline business processes.
I see great potential for career growth and development within the Pega ecosystem.
My long term goal is to become a proficient application engineer, leveraging Pega's ...
Pegasystems interview questions for popular designations
Get interview-ready with Top Pegasystems Interview Questions
I applied via LinkedIn and was interviewed in Jul 2024. There was 1 interview round.
I applied via Campus Placement
Duration: 2 hrs 25 min
HTML and CSS are languages used for creating and styling web pages.
HTML stands for HyperText Markup Language and is used for creating the structure of a web page.
CSS stands for Cascading Style Sheets and is used for styling the elements on a web page.
HTML uses tags to define different elements like headings, paragraphs, images, links, etc.
CSS allows for customization of colors, fonts, layouts, and other visual aspects ...
I was interviewed in Feb 2024.
I applied via Company Website and was interviewed in Apr 2024. There was 1 interview round.
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The duration of Pegasystems interview process can vary, but typically it takes about less than 2 weeks to complete.
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