Round 1
Questions:
-
Question:
- Sum Root to Leaf Numbers
- Follow-up: Asked for time complexity and space complexity (if using recursion, mention call stack needed for recursive functions).
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Question:
- Valid Word Abbreviation
- Solved using two pointers. No follow-ups for this question.
Candidate's Approach
- For the first question, the candidate discussed the approach to calculate the sum of numbers formed by root-to-leaf paths in a binary tree, ensuring to mention the time and space complexities.
- For the second question, the candidate utilized a two-pointer technique to validate the word abbreviation.
Interviewer's Feedback
No feedback provided.