Completed Binary search 1

[divyaa2809]

No description provided.

[super30admin]

• Strengths: The student correctly identified the need to first find the range where the target might be and then perform binary search within that range. The implementation is clean and efficient.
• Areas for Improvement: The student should ensure that the solution matches the problem description. The solution in problem2.cpp is for a different problem and should not be included here. The comments could be more detailed to explain the two-phase approach (finding the range and then performing binary search).