def around
import minebender-game@1.0.0.0/solver.bend as Solverimport Base
import minebender-game@1.0.0.0/types.bend as T
309# The numbers of `is` that count c.
310def around(its: List<&2, Item>, +c: T.Pos) -> List<&2, Item>:
311 match its:
312 case Nil{}:
313 Nil{}
314 case +i <> t:
315 around.put(i, c, around(t, c))