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📜 WAYPOINT LESSON

Checkpoint: References and Pointers

⭐ beginner⏳ 15 min read📍 Lesson 40 of 204

One graded challenge: choose the right access pattern and use nullptr safely.

Checkpoint — references and pointers. Pass the graded challenge below to finish the module.

The tests exercise each signature's contract: which parameters are const&, which are T* allowed to be null, and which return through references.