Microsoft | Find First and Last Position of Element in Sorted Array (Binary Search)
Round 1
Questions: Specific question not provided.
Follow-up Question
- Can you explain your approach to solving the problem?
- What is the time complexity of your solution?
Candidate's Approach
To solve the problem of finding the first and last position of a target in a sorted array, I utilized binary search to achieve an O(log n) time complexity. The approach involved two main steps:
- Performing a binary search to find the first occurrence of the target.
- Performing another binary search to find the last occurrence of the target.
The binary search function was designed to take a boolean parameter to determine whether to search for the first or last index. This allowed for efficient searching without needing to traverse the entire array.
Interviewer's Feedback
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