Round 1
Questions: Specific question not provided.
Follow-up Question
- Can you explain your approach to solving the problem?
Candidate's Approach
The candidate utilized a backtracking approach combined with a frequency count to solve the problem. The steps included:
- Counting the frequencies of each letter to avoid generating duplicate sequences.
- Using backtracking to explore all possible sequences by:
- Picking each available letter.
- Reducing its count and proceeding recursively.
- Restoring the count after recursion to backtrack.
The candidate implemented this in Python using the itertools.permutations function to generate all permutations of the tiles.
Interviewer's Feedback
No feedback provided.