Counting depth increases and sliding windows. Sometimes Excel is the right tool for the job.
Piloting a submarine with regex-parsed commands. Tuples and TypeScript inference doing the heavy lifting.
Counting bits, filtering reports, and resisting the urge to do actual bit twiddling. Sometimes strings are fine.
Playing Bingo with a cephalopod, debugging for-loop mutations, and learning when to let the squid win.
Mapping vent lines on a grid, handling diagonals, and accepting that a million cells is fine.