Added competative coding problems

[pratikb0501]

No description provided.

[super30admin]

Interview Problem: Find Missing Number in a sorted array (Problem_1.py)

Your solution is correct and efficient. It uses binary search to achieve O(log n) time complexity and O(1) space complexity, which is optimal for this problem. The code is clean and easy to understand.

Strengths:

• You correctly identified the pattern: if nums[mid] == mid+1, then the missing number must be to the right; otherwise, it's to the left.
• You handled the binary search loop correctly with low and high pointers.
• The code is concise.

Areas for improvement:

• Consider adding comments to explain the logic, especially why you are comparing nums[mid] with mid+1. This would make the code more understandable for others.
• For production code, it's good practice to put test cases inside a main guard (if name == 'main':) to avoid running them when the file is imported.
• Although not necessary for this problem, you might want to consider edge cases like an empty array (if allowed) but the problem states the array has n-1 integers, so it's safe.

Overall, great job!

VERDICT: PASS

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Interview Problem: Design Min Heap (Problem2.py)

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VERDICT: NEEDS_IMPROVEMENT