Interview Questions

Anagram Detection - find all anagrams from a given list of strings

Can you explain the concept of polymorphism and inheritance in Java with examples?

Can you give an example of processing nested JSON data using these functions?

Case Class and StructType Syntax

Check if a number is prime.

Closure Function - explain

Coin Change Problem - minimum number of coins required to make change

Collaborating with cross-functional teams to resolve data quality issues

Compare compression algorithms: Gzip vs Snappy.

Concatenating lists within a range using list comprehensions

Convert a Binary Search Tree (BST) into a skewed tree in either increasing or decreasing order

Convert a sorted array into a Binary Search Tree

Convert the list [1, [2, 3], 4, 5, 6, [7, 8, 9]] to a single list [1, 2, 3, 4, 5, 6, 7, 8, 9].

Count occurrences of elements in a list of tuples using Spark RDDs

Count of Alphabets in String

Create a Python program to demonstrate the use of set operations (union, intersection).

Create a dictionary with list elements as keys and their occurrences as values.

Create a function to detect anomalies in sales trends using Pandas and NumPy.

Create a script to parse and transform a JSON file into a structured CSV.

DSA: Array-based problem - brute-force and optimized solutions