Checkpoint: trace, then predict

Challenge on lesson: Checkpoint: trace like the exam

CHALLENGE

Difficulty: intermediate+25 XP

Trace mystery by hand for n = 7 (a state table for i and out helps). The method is already correct — your job is to **predict** what mystery(7) returns and what mystery(0) returns, then encode exactly that behavior by implementing mystery yourself from the trace rules.

Press Submit to check your solution.

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