Packet Sprint speed training

35/35 correct. Standing PB 3.005s held; session best 3.018s. Reuse: scan 6 rows once, keep only active:true; capture id:label and stable-insert by numeric id (compare tens then ones), preserving scan order on equal ids; emit with |, no second sort/check. Slower reps were latency-heavy (one 18.149s spike). Bottleneck: runtime variance + row/output density.