Round 1: Online Assessment
Questions:
- Basic Hashing problem (solved using HashMap).
- String Matching problem (solved using KMP algorithm).
Candidate's Approach
No approach provided.
Interviewer's Feedback
No feedback provided.
Round 2: Behavioral & Decision-Making
Questions: Situational questions assessing problem-solving approach and work ethics.
Candidate's Approach
No approach provided.
Interviewer's Feedback
No feedback provided.
Technical Interview
Questions:
-
Minimum Cost to Join Ropes (Greedy + Priority Queue):
- Solved using a Min-Heap (Priority Queue).
- Time Complexity: O(N log N)
- Space Complexity: O(N)
-
Word Ladder (Graph + BFS):
- Implemented Breadth-First Search (BFS) to find the shortest transformation sequence.
- Time Complexity: O(N * M^2) (where N = word list size, M = word length)
- Space Complexity: O(N * M)
Candidate's Approach
The candidate solved the Minimum Cost to Join Ropes using a Min-Heap, ensuring efficient merging of ropes. For the Word Ladder problem, they implemented BFS to explore all possible transformations, optimizing for the shortest path.
Interviewer's Feedback
The interview went really well, and the candidate was confident in their solutions. The interviewer seemed satisfied with the candidate's approach and explanations.