feat: add solutions for challenge 281 from BarrOff

2 files changed, 36 insertions, 0 deletions

diff --git a/challenge-281/barroff/julia/ch-1.jl b/challenge-281/barroff/julia/ch-1.jl
new file mode 100644
index 0000000000..60cb1bfdfe
--- /dev/null
+++ b/challenge-281/barroff/julia/ch-1.jl
@@ -0,0 +1,13 @@
+#!/usr/bin/env julia
+
+using Test: @test, @testset
+
+function check_color(str::AbstractString)::Bool
+    (Int(str[1]) + parse(Int, str[2])) % 2 != 0
+end
+
+@testset "check color" begin
+    @test check_color("d3") == true
+    @test check_color("g5") == false
+    @test check_color("e6") == true
+end
diff --git a/challenge-281/barroff/raku/ch-1.p6 b/challenge-281/barroff/raku/ch-1.p6
new file mode 100644
index 0000000000..b7ea968285
--- /dev/null
+++ b/challenge-281/barroff/raku/ch-1.p6
@@ -0,0 +1,23 @@
+#!/usr/bin/env raku
+
+use v6.d;
+
+sub check-color(Str $coordinates where $coordinates ~~ /^ <[a..h]> <[1..8]> / --> Bool) {
+    my $translated = $coordinates.trans(['a'..'h'] => ['0'..'7']);
+    (sum($translated.comb) mod 2) == 0
+}
+
+#| Run test cases
+multi sub MAIN('test') {
+    use Test;
+    plan 3;
+
+    is check-color("d3"), True, 'works for "d3"';
+    is check-color("g5"), False, 'works for "g5"';
+    is check-color("e6"), True, 'works for "e6"';
+}
+
+#| Take user provided string like "d3"
+multi sub MAIN(Str $coordinates where $coordinates ~~ /^ <[a..h]> <[1..8]> /) {
+    say check-color($coordinates);
+}