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Diffstat (limited to 'aoc2023/src/utilities/array2d.gleam')
| -rw-r--r-- | aoc2023/src/utilities/array2d.gleam | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/aoc2023/src/utilities/array2d.gleam b/aoc2023/src/utilities/array2d.gleam index d7d05f8..83ec8ae 100644 --- a/aoc2023/src/utilities/array2d.gleam +++ b/aoc2023/src/utilities/array2d.gleam @@ -9,6 +9,12 @@ pub type Posn { pub type Array2D(a) = Dict(Posn, a) +pub fn add_posns(p1: Posn, p2: Posn) -> Posn { + case p1, p2 { + Posn(r1, c1), Posn(r2, c2) -> Posn(r1 + r2, c1 + c2) + } +} + pub fn to_2d_array(xss: List(List(a))) -> Array2D(a) { { use r, row <- list.index_map(xss) |