Round 1
Questions:
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Swap Three Types
I was tasked with writing an efficient function to swap three types of elements. It required logical thinking and optimization. -
Palindrome Check
I implemented a function to check if a string is a palindrome, accounting for edge cases like spaces and capitalization. We also explored both iterative and recursive solutions. -
K-Diff Pairs in an Array
This problem involved finding the number of unique pairs in an array with a specified difference, k. While I couldn’t fully solve this, I explained my approach and discussed possible optimizations.
Candidate's Approach
- For the Swap Three Types problem, I focused on using a single pass algorithm to minimize time complexity.
- In the Palindrome Check, I considered both iterative and recursive methods, ensuring to handle edge cases effectively.
- For the K-Diff Pairs, I outlined my thought process on using a hash map to track occurrences and discussed potential optimizations, even though I couldn't arrive at a complete solution.
Interviewer's Feedback
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