For today (day 10), I found that if
proc `-`[T](a,b: openArray[T]): seq[T]
Run
is prepared, the solution of part 1 can be expressed in a clean way. I think it
maybe useful in the future also.
proc main() =
let input =
readFile(inputFilePath).strip.split("\n").map(parseInt).sorted()
let diff = input[1..^1] - input[0..^2]
echo (diff.count(1)+1) * (diff.count(3)+1)
Run
* * *
For part 2, another hints is that {.global.} pragma is helpful to keep DP
solution clean.
