Mock1 Completed

[dhpatel860]

No description provided.

[super30admin]

• The solution is well-implemented and follows best practices. The approach is clear and efficient.
• The comments provided are helpful in understanding the thought process behind the solution.
• One minor improvement could be to add a brief explanation of why the final result is start + 1 in the comments, as it might not be immediately obvious to someone reading the code.
• The solution could also include a check for the case where the missing number is at the beginning or end of the array, although the current implementation handles these cases correctly.