Create minimum in rotated sorted array

[Praniksha123]

No description provided.

[super30admin]

Find the First and Last Position of an Element in given Sorted Array (minimum in rotated sorted array)

• Major Issue: You have submitted a solution for the wrong problem. The assigned problem asks you to find the first and last position of a target value in a sorted array, but your solution finds the minimum element in a rotated sorted array.
• File Header: The comment at the top of your file incorrectly describes the problem. Always ensure your code matches the problem you're solving.
• Understanding: To solve the original problem, you need to use binary search to find both the leftmost and rightmost occurrence of the target value. The reference solution demonstrates this approach with two separate binary search functions.
• Strength: Your binary search implementation for finding the minimum element is correct and follows good practices (using low + (high - low) / 2 to prevent overflow).

To improve, please carefully read the problem statement and ensure your solution addresses the exact requirements. Consider studying the reference solution to understand how to find both the first and last positions of a target element.

VERDICT: NEEDS_IMPROVEMENT

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Find the Minimum Element in a Rotated Array(sorted)

Strengths:

• The solution correctly implements the binary search algorithm for finding the minimum in a rotated sorted array
• The code is clean, readable, and follows good coding practices
• Edge cases are handled properly (checking mid boundaries)
• The algorithm achieves the required O(log n) time complexity

Areas for Improvement:

• Add comments to explain the binary search logic, especially the conditions for identifying the minimum element
• Consider adding a brief comment explaining why we check nums[low] <= nums[high] at the start
• The return -1 at the end is unnecessary since the problem guarantees a valid answer, but it doesn't affect correctness

The solution is functionally equivalent to the reference solution and demonstrates a solid understanding of the binary search approach for this classic problem.

VERDICT: PASS

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Find the Peak Element

The student appears to have copied code from a different problem (Find Minimum in Rotated Sorted Array) without adapting it for the Peak Element problem. The core logic needs to be changed:

• Change the condition from finding minimum (<) to finding peak (>)
• Change the binary search direction logic
• Rename method to findPeakElement
• Fix the missing closing brace

The student demonstrates good understanding of binary search patterns but needs to carefully read problem requirements before implementing.

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VERDICT: NEEDS_IMPROVEMENT