feat: add solutions for challenge 280 from BarrOff

2 files changed, 33 insertions, 0 deletions

diff --git a/challenge-280/barroff/julia/ch-1.jl b/challenge-280/barroff/julia/ch-1.jl
new file mode 100644
index 0000000000..056e092cc3
--- /dev/null
+++ b/challenge-280/barroff/julia/ch-1.jl
@@ -0,0 +1,19 @@
+#!/usr/bin/env julia
+
+using Test: @test, @testset
+
+function twice_appearance(str::AbstractString)::Char
+    str_set = Set{Char}()
+    for c in str
+        if in(c, str_set)
+            return c
+        end
+        push!(str_set, c)
+    end
+end
+
+@testset "twice appearance" begin
+    @test twice_appearance("acbddbca") == 'd'
+    @test twice_appearance("abccd") == 'c'
+    @test twice_appearance("abcdabbb") == 'a'
+end
diff --git a/challenge-280/barroff/julia/ch-2.jl b/challenge-280/barroff/julia/ch-2.jl
new file mode 100644
index 0000000000..f1115fdc28
--- /dev/null
+++ b/challenge-280/barroff/julia/ch-2.jl
@@ -0,0 +1,14 @@
+#!/usr/bin/env julia
+
+using Test: @test, @testset
+
+function count_asterisks(str::AbstractString)::Int
+    pairless = replace(str, r"\|.*?\|" => "")
+    count(x -> x == '*', pairless)
+end
+
+@testset "count asterisks" begin
+    @test count_asterisks("p|*e*rl|w**e|*ekly|") == 2
+    @test count_asterisks("perl") == 0
+    @test count_asterisks("th|ewe|e**|k|l***ych|alleng|e") == 5
+end