Real questions from top companies
Programming languages and their application in past projects.
Python libraries - Pandas, NumPy, Matplotlib for data processing
Reverse a string with special characters preserved.
S3 Cleanup Command - write script for managing and cleaning up outdated S3 objects
Solve for the Kth smallest element in a Binary Search Tree.
Solve the Dutch National Flag problem in one pass. How would you handle it?
Trapping Rain Water - calculate amount of water trapped between array elements
What is the difference between list1 = list2 and list1.copy()?
Write Python code to remove duplicates from a string.
Write a Python program to reverse words in a string.
Write a decorator function to log the execution time of a function.
Write a function that replaces all characters in a list except for a given character
Write a higher-order function to filter values greater than a threshold in a list.
Write a swap function without if-else.
Write code for character frequency in a text file.
Write code using Java's concurrent API (forEach, forEachEntry, forEachKey)
Add Row Numbers using window function in PySpark
Add a column to the Employees table that shows the name of the employee with the next higher employee_id.
Add a new column with manager names for each employee using a self-join.
Add a new column with the average salary by department.
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