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There are 30 questions Mixed with Aptitude, AWS, OS
OOPS (Object-Oriented Programming) is a programming paradigm that uses objects to represent and manipulate data.
OOPS focuses on the concept of objects, which are instances of classes.
It emphasizes encapsulation, inheritance, and polymorphism.
Encapsulation ensures data hiding and abstraction.
Inheritance allows classes to inherit properties and behaviors from other classes.
Polymorphism enables objects to take on multiple...
posted on 9 Jun 2021
I applied via Recruitment Consultant and was interviewed in Dec 2020. There were 4 interview rounds.
I applied via Naukri.com and was interviewed before Jun 2020. There were 4 interview rounds.
To segment a population based on attributes, use clustering algorithms like k-means or hierarchical clustering.
Identify relevant attributes such as age, income, education level, etc.
Normalize the data to ensure all attributes are on the same scale.
Choose a clustering algorithm based on the size of the dataset and the desired number of segments.
Evaluate the results using metrics like silhouette score or within-cluster s...
posted on 19 Nov 2022
I applied via Referral and was interviewed before Nov 2021. There were 2 interview rounds.
posted on 14 Oct 2021
posted on 24 Aug 2021
I applied via Company Website and was interviewed in Feb 2021. There was 1 interview round.
Skills needed to perform depend on the job role and industry.
Technical skills
Communication skills
Problem-solving skills
Time management skills
Leadership skills
My strengths include strong analytical skills, attention to detail, and ability to work well under pressure.
Strong analytical skills
Attention to detail
Ability to work well under pressure
Find an odd occurring number among even occurring numbers.
Use XOR operation to cancel out even occurring numbers and get the odd occurring number.
Iterate through the array and XOR each element with the result variable.
The final result will be the odd occurring number.
Print the spiral order of a binary tree and matrix.
For binary tree, use level order traversal and alternate direction for each level.
For matrix, use four pointers to traverse in spiral order.
Example for binary tree: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9
Example for matrix: 1 2 3 4 -> 8 7 6 5 -> 9 10 11 12 -> 16 15 14 13
Finding pairs in an array with a given sum.
Iterate through the array and for each element, check if the difference between the given sum and the element exists in the array.
Use a hash table to store the elements of the array and their indices for faster lookup.
If there are multiple pairs with the same sum, return any one of them.
If no pair is found, return null or an empty array.
Find total number of k element with given avg in an array in minimum time complexity.
Use sliding window technique to traverse the array in O(n) time complexity.
Maintain a sum variable to keep track of the sum of elements in the window.
If the sum of elements in the window is equal to k times the given avg, increment the count.
Move the window by subtracting the first element and adding the next element in the array.
Printing non-boundary elements of a binary tree
Traverse the tree in any order (preorder, inorder, postorder)
Check if the current node is not a boundary node (not the first or last node in its level)
If it is not a boundary node, print its value
Recursively traverse its left and right subtrees
I applied via Recruitment Consultant
posted on 10 Dec 2020
I applied via Naukri.com and was interviewed in Jun 2020. There were 3 interview rounds.
posted on 23 Oct 2021
I applied via Naukri.com and was interviewed before Oct 2020. There were 3 interview rounds.
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