feat: add solutions and blog for challenge 260 from BarrOff

5 files changed, 75 insertions, 0 deletions

diff --git a/challenge-260/barroff/blog.txt b/challenge-260/barroff/blog.txt
new file mode 100644
index 0000000000..6dd046bacb
--- /dev/null
+++ b/challenge-260/barroff/blog.txt
@@ -0,0 +1 @@
+https://barroff.codeberg.page/2024/03/occurrences-with-bqn/
diff --git a/challenge-260/barroff/bqn/ch-1.bqn b/challenge-260/barroff/bqn/ch-1.bqn
new file mode 100644
index 0000000000..74490ca6c5
--- /dev/null
+++ b/challenge-260/barroff/bqn/ch-1.bqn
@@ -0,0 +1,9 @@
+#/usr/bin/env bqn
+
+ints ← 2‿5‿9‿11‿3
+
+UniqueOccurrences ← ∧´∘∊(+´˘(∊/⊢)=⌜⊢)
+
+•Show UniqueOccurrences ⟨1,2,2,1,1,3⟩
+•Show UniqueOccurrences ⟨1,2,3⟩
+•Show UniqueOccurrences ⟨-2,0,1,-2,1,1,0,1,-2,9⟩
diff --git a/challenge-260/barroff/julia/ch-1.jl b/challenge-260/barroff/julia/ch-1.jl
new file mode 100644
index 0000000000..2de40cc3b6
--- /dev/null
+++ b/challenge-260/barroff/julia/ch-1.jl
@@ -0,0 +1,17 @@
+#!/usr/bin/env julia
+
+using Test: @test, @testset
+
+function unique_values(ints::Vector{T})::Int where {T<:Integer}
+    unique_numbers = unique(ints)
+    Int(
+        length(unique_numbers) ==
+        length(unique(map(x -> count(y -> y == x, ints), unique_numbers))),
+    )
+end
+
+@testset "count even digits number" begin
+    @test unique_values([1, 2, 2, 1, 1, 3]) == 1
+    @test unique_values([1, 2, 3]) == 0
+    @test unique_values([-2, 0, 1, -2, 1, 1, 0, 1, -2, 9]) == 1
+end
diff --git a/challenge-260/barroff/raku/ch-1.p6 b/challenge-260/barroff/raku/ch-1.p6
new file mode 100644
index 0000000000..de0c15d531
--- /dev/null
+++ b/challenge-260/barroff/raku/ch-1.p6
@@ -0,0 +1,25 @@
+#!/usr/bin/env raku
+
+use v6.d;
+
+sub unique-occurrences(@ints --> Int:D) {
+    my @bag_values = Bag(@ints).values;
+    @bag_values.unique.elems == @bag_values.elems ?? 1 !! 0;
+}
+
+#| Run test cases
+multi sub MAIN('test') {
+    use Test;
+    plan 3;
+
+    is unique-occurrences([1,2,2,1,1,3]), 1, 'works for (1,2,2,1,1,3)';
+    is unique-occurrences([1,2,3]), 0, 'works for (1,2,3)';
+    is unique-occurrences([-2,0,1,-2,1,1,0,1,-2,9]), 1,
+        'works for (-2,0,1,-2,1,1,0,1,-2,9)';
+}
+
+#| Take user provided number like 10 1 111 24 1000
+multi sub MAIN(*@ints) {
+    say unique-occurrences(@ints);
+}
+
diff --git a/challenge-260/barroff/raku/ch-2.p6 b/challenge-260/barroff/raku/ch-2.p6
new file mode 100644
index 0000000000..2dc3407f99
--- /dev/null
+++ b/challenge-260/barroff/raku/ch-2.p6
@@ -0,0 +1,23 @@
+#!/usr/bin/env raku
+
+use v6.d;
+
+sub dictionary-rank(Str:D $word --> Int:D) {
+    my @words = $word.comb.permutations.map({ $_.join }).unique.sort;
+    return 1 + @words.first: * eq $word, :k;
+}
+
+#| Run test cases
+multi sub MAIN('test') {
+    use Test;
+    plan 3;
+
+    is dictionary-rank("CAT"), 3, 'works for "CAT"';
+    is dictionary-rank("GOOGLE"), 88, 'works for "GOOGLE"';
+    is dictionary-rank("SECRET"), 255, 'works for "SECRET"';
+}
+
+#| Take user provided words like CAT
+multi sub MAIN(Str:D $word) {
+    say dictionary-rank($word);
+}