diff options
Diffstat (limited to 'aoc-2020-gleam/src/days/day03.gleam')
| -rw-r--r-- | aoc-2020-gleam/src/days/day03.gleam | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/aoc-2020-gleam/src/days/day03.gleam b/aoc-2020-gleam/src/days/day03.gleam index 3a62419..0778eea 100644 --- a/aoc-2020-gleam/src/days/day03.gleam +++ b/aoc-2020-gleam/src/days/day03.gleam @@ -9,9 +9,7 @@ import ext/intx import ext/resultx as resx import ext/iteratorx as iterx import util/input_util - -type Pos = - #(Int, Int) +import util/pos.{Pos} const starting_pos = #(0, 0) @@ -19,10 +17,6 @@ const base_slope = #(3, 1) const all_slopes = [#(1, 1), base_slope, #(5, 1), #(7, 1), #(1, 2)] -fn add(p1: Pos, p2: Pos) -> Pos { - #(p1.0 + p2.0, p1.1 + p2.1) -} - type Area { Area(trees: Set(Pos), cycle: Int, height: Int) } @@ -68,7 +62,7 @@ fn is_valid(pos: Pos, in area: Area) -> Bool { fn tree_count(in area: Area, with slope: Pos) -> Int { starting_pos - |> iter.iterate(with: add(_, slope)) + |> iter.iterate(with: pos.add(_, slope)) |> iter.take_while(satisfying: is_valid(_, in: area)) |> iterx.count(satisfying: has_tree(in: area, at: _)) } |