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I applied via Naukri.com and was interviewed before Oct 2023. There were 3 interview rounds.
Selenium with java coding questions
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posted on 23 Mar 2024
posted on 9 Jul 2024
I applied via Recruitment Consulltant and was interviewed before Jul 2023. There were 3 interview rounds.
posted on 17 Dec 2024
Simple aptitude questions that cover fundamental concepts.
Moderate difficulty level questions in data structure and algorithms.
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
Joins are used to retrieve data from multiple tables based on a related column
Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
OOP features are key concepts in Object-Oriented Programming that include encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation: Bundling data and methods that operate on the data into a single unit (object)
Inheritance: Ability for a class to inherit properties and behavior from another class
Polymorphism: Ability for objects to be treated as instances of their parent class or their own class
Abstractio...
An exception in Java is a runtime error that disrupts the normal flow of a program.
Exceptions are objects that are thrown when an error occurs during the execution of a program.
They can be caught and handled using try-catch blocks.
Common types of exceptions in Java include NullPointerException, ArrayIndexOutOfBoundsException, and IOException.
posted on 7 May 2024
I applied via Campus Placement and was interviewed before May 2023. There were 3 interview rounds.
It was basic aptitude test on rs aggrawal
posted on 7 Dec 2024
I applied via Approached by Company and was interviewed in Nov 2024. There were 3 interview rounds.
2 hard DSA questions
2 dsa questions were asked.
prefix search
binary tree camera
Parling lot low level design
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 Walk-in
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