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📜 WAYPOINT LESSON

Checkpoint: zone tickets

⭐⭐ intermediate⏳ 30 min read📍 Lesson 144 of 256

The two-part Q3: aggregate in (a), compose in (b), ship (a) no matter what.

zoneTotal is the Q3 playbook in one method; overtime is its consumer. Notice what the checkpoint graded: the strict > in overtime (a prose obligation), the absent-zone zero (an edge from the examples), and the composition itself. When the real exam's part (b) stumps you, (a)'s machines are worth their points regardless — ship them.