Propose to improve p01 and p02

[tolgacangoz]

Thanks a lot for this implementation-based learning environment!

Hi @dunnoconnor! FYI: Puzzle 2's video isn't included in the playlist: https://www.youtube.com/playlist?list=PLh0S94-sJw_5yv_s--TW0Asi6liIy0NGz

[tolgacangoz]

We didn't need to import memory.UnsafePointer at the first puzzle, thus isn't it built-in?

[GzuPark]

Even if it's built-in, I think explicitly importing it is still helpful.

[tolgacangoz]

I agree with Devin Review's comment: "Pedagogical clarity: For beginners, fewer imports = less cognitive overhead."

[GzuPark]

That's a valid perspective. However, I believe beginners could actually experience confusion about where these constructs originate. Those encountering this for the first time are likely new to Mojo entirely. If something isn't a reserved keyword, making its provenance explicit should aid understanding.

[Copilot]

Pull request overview

This PR aims to clean up unused imports in puzzle 2 files and fix a documentation link. The changes remove imports that are not directly used in the respective files and update a reference link to be more specific.

Changes:

• Removed unused imports (UnsafePointer, block_dim, block_idx) from solution and problem files
• Removed starter code hint in the problem file and adjusted the comment
• Fixed documentation link to point specifically to introduction_layout_tensor.md

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
solutions/p02/p02.mojo	Removes unused imports while keeping thread_idx which is used in the solution
problems/p02/p02.mojo	Removes all imports and starter hint, making the problem harder
book/src/puzzle_02/puzzle_02.md	Fixes documentation link to be more specific

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

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[ehsanmok]

Thanks Tolga! Everything looks good but please keep the UnsafePointer import as it. It's more of making it future-proof as prelue imports have changed a few times.

[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

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[tolgacangoz]

OK, added UnsafePointer into the first puzzle then.