CODE DRILL 1 · RUN ONLY
This is a scratch drill — your code runs, nothing is graded or recorded. No test cases, no expected output, no verdict.
TASK
Complete the C++ trace function by adding its recursive call. Run trace(3) and print the collected words as one comma-separated line in this exact order: enter 3, enter 2, enter 1, stop, leave 1, leave 2, leave 3.
OUTPUT
Sampleenter 3, enter 2, enter 1, stop, leave 1, leave 2, leave 3
What a finished answer prints, from the lesson. Nothing has run yet — press Run and this is replaced by your program’s own output.