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Apptitude test is so easy it consists of English, technical mcqs
count(*) counts all rows in a table, while count(column_name) counts non-null values in a specific column.
count(*) counts all rows in a table
count(column_name) counts non-null values in a specific column
count(*) is generally used to get the total number of rows in a table
count(column_name) is used to count non-null values in a specific column
I applied via Campus Placement and was interviewed in Apr 2021. There were 3 interview rounds.
Data structures are ways of organizing and storing data in a computer so that it can be accessed and used efficiently.
Data structures can be linear or non-linear
Examples of linear data structures include arrays, linked lists, and stacks
Examples of non-linear data structures include trees and graphs
Choosing the right data structure can greatly impact the efficiency of algorithms
I applied via campus placement at BV Raju Institute of Technology, Medak and was interviewed in Sep 2020. There were 3 interview rounds.
Program to get minimum number of coins.
Create an array of coin denominations
Sort the array in descending order
Loop through the array and subtract the highest denomination possible
Repeat until the remaining amount is 0
Sorting an array of infinite length with only three elements (-1, 0, 1)
Use counting sort algorithm to count the frequency of each element
Create a new array with sorted elements based on their frequency
Time complexity is O(n) and space complexity is O(1)
Example: [-1, 1, 0, 1, -1, 0, 1, -1, 0, 1, ...]
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I applied via Campus Placement and was interviewed in Oct 2024. There were 2 interview rounds.
Loop in linked list is a situation where a node points to a previous node in the list, creating an infinite loop.
Check for loops using Floyd's cycle detection algorithm
Use two pointers, one moving twice as fast as the other, to detect a loop
If the fast pointer catches up to the slow pointer, there is a loop
1 coding question, and basic MCQ
posted on 19 Jul 2022
I applied via Recruitment Consulltant and was interviewed in Jan 2022. There were 2 interview rounds.
posted on 1 Nov 2023
posted on 10 Sep 2023
It was an easy test. It consisted of MCQs and two coding qns. Prepare SQL well. It also had 2 programming question. Both were medium difficukty
posted on 13 Sep 2023
I applied via Company Website and was interviewed before Sep 2022. There were 3 interview rounds.
Multiple inheritance allows a class to inherit attributes and methods from more than one parent class.
In multiple inheritance, a class can inherit from two or more parent classes.
It can lead to the Diamond Problem where a class inherits from two classes that have a common ancestor.
Languages like C++ support multiple inheritance.
Example: class ChildClass : public ParentClass1, public ParentClass2 {}
An interface in software development defines a contract for classes to implement, specifying methods and properties that must be included.
Interfaces in programming languages like Java, C#, and TypeScript allow for multiple inheritance by defining a set of methods that a class must implement.
Interfaces are used to enforce a common structure across different classes, promoting code reusability and maintainability.
Example...
Create Crud operation using angular with API.
I applied via Campus Placement and was interviewed in Oct 2024. There were 2 interview rounds.
Loop in linked list is a situation where a node points to a previous node in the list, creating an infinite loop.
Check for loops using Floyd's cycle detection algorithm
Use two pointers, one moving twice as fast as the other, to detect a loop
If the fast pointer catches up to the slow pointer, there is a loop
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