Chapter 2, Exercise 5: Fixed two bugs which could cause indefinite waits when no correct guess was provided

[aldiyen]

Fixes issue #6

Pull Request

Description

Brief description of the changes in this PR.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New exercise (adds a new learning exercise)
• Exercise improvement (enhances existing exercise)
• Feature (new functionality for platform)
• Documentation (updates to docs, README, etc.)
• Refactoring (code cleanup, no functional changes)

Exercise Changes (if applicable)

• Chapter: 2
• Exercise ID: 5
• Type: Bug Fix
• Difficulty: n/a

Testing Checklist

• Exercise compiles without warnings
• All tests pass (cargo test)
• Clippy passes (cargo clippy)
• Exercise is completable by target audience
• Hints are helpful without giving away solution
• Solution explanation is clear and educational
• Rust Book references are accurate and relevant

Quality Checklist

• Code follows project style guidelines
• Comments are clear and helpful
• Error messages are beginner-friendly
• Exercise metadata is complete and accurate
• No hardcoded solutions or shortcuts

Documentation Updates

• Updated exercise list in README
• Added/updated hints.md file
• Updated chapter progress tracking
• Added Rust Book references

Breaking Changes

Does this PR introduce any breaking changes?

• Yes (describe below)
• No

If yes, describe the breaking changes and migration path:

Additional Notes

Any additional context, screenshots, or information relevant to this PR.

[ghanithan]

Hi @aldiyen,
Good catch! Users would get stuck in infinite loops during testing. Thanks for fixing both cases!

[ghanithan]

@aldiyen Could you please sign your commits? Thanks!

[aldiyen]

@aldiyen Could you please sign your commits? Thanks!

Oops, thought I had done that. Fixed.