1 min lesson
Day-before checklist
Walk through the important items in "Day-before checklist" and give the practical point of each.
Step 1 of 2
Day-before checklistT-minus one day
- Confirm your environment: editor, language, AI assist configured the way you'll actually use it.
- Re-read your own gateway README and the failure branches from the design round.
- Skim your STAR notes and your three questions for the team; do not cram new material.
- Sleep. A rested p99 beats a crammed p50.
Lock two decisions now
Decide your primary language - TypeScript, Rust or Python - and do every remaining practice solve in it so it's automatic under pressure. Then lock your practice set: the two coding problems, the gateway take-home, the design prompt and the deep-dive scenarios in this module. A small set drilled deep beats a large set skimmed.
Learn more
Optional practice
Practice: Day-before checklist
QYou score yourself 5 on coding and behavioral but 3 on cost/latency reasoning, with the loop in five days. What's the right plan?