62. Returning unique_ptr Ownership

In many systems, a resource is created in one function and used elsewhere.
Modern C++ expresses this ownership transfer explicitly by returning a std::unique_ptr.

Your task is to correctly implement a function that:

• Allocates a dynamic buffer
• Initializes it using input values
• Returns exclusive ownership to the caller using std::unique_ptr

The caller must then use the buffer without worrying about cleanup.

This problem focuses on clean ownership flow through return values.

Program Flow:

1. Read integer N
2. Call a function that creates and initializes a buffer of size N
3. Receive ownership in main
4. Print the buffer contents
5. Exit normally (automatic cleanup)

Example Input:

4
10 20 30 40

Example Output:

10 20 30 40

Constraints:

• N ranges from 1 to 100
• Each buffer element value ranges from 0 to 255
• All values fit within an unsigned 8-bit integer
• Resource creation must happen inside the function
• Ownership must be returned using std::unique_ptr
• No raw pointer may escape
• No manual delete is allowed