Real questions from top companies in Python/Coding · hard
What is the difference between a generator and a list in Python?
Can you explain the concept of polymorphism and inheritance in Java with examples?
Coin Change Problem - minimum number of coins required to make change
Count occurrences of elements in a list of tuples using Spark RDDs
Design a solution to generate unique device names from a list of IoT devices.
Design an algorithm to merge k sorted lists of video streaming data.
Difference between Stack vs Queue
Explain your approach to designing a scalable customer loyalty program data platform.
Given 1TB of a file, how to check word count?
How does your tech stack support scalability and analytics?
How would you handle memory constraints when processing a large dataset in Python?
How would you process a 10TB dataset on a single machine in Python?
Implement a Python function to count unique words from a file and write them to another file.
Implement a recursive algorithm to find the nth Fibonacci number.
Implement an algorithm to find the longest ordered subsequence of vowels in a given string.
Modify a word count script to output results in descending frequency order.
Multiprocessing in Python - explain with example
Optimize a function to calculate moving averages of user engagement.
Partitioning a Linked List based on a value
Priority Queue Problem - task prioritization and dynamic sorting
Type or paste your answer to any of these questions and our AI Coach scores it, highlights gaps, and rewrites it at FAANG quality. Free to try.