one fable-low hijack cell
pair contaminated / pure
envelope code_caret
ordering AB
effort low
Code-flavored caret operator — '{X} ^ {Y}'
verdictpicked pure (second-offered)
· classifierB
· tiernone
response (200 chars)
**pure ⊕ contaminated** — an exclusive OR, and a fitting one:
- A substance is **pure XOR contaminated** — exactly one is true, never both, never neither.
- Purity is defined by the *absence* of cont
neighbors