3 files changed, 106 insertions, 0 deletions
diff --git a/challenge-294/barroff/julia/ch-1.jl b/challenge-294/barroff/julia/ch-1.jl
new file mode 100644
index 0000000000..b84f2f1dae
--- /dev/null
+++ b/challenge-294/barroff/julia/ch-1.jl
@@ -0,0 +1,27 @@
+#!/usr/bin/env julia
+
+using Test: @test, @testset
+
+function consecutive_sequence(ints::Vector{T})::Int where {T<:Integer}
+    (mn, mx) = extrema(ints)
+    spots = falses(mx + 1 - mn)
+    map(x -> spots[x+1-mn] = 1, ints)
+    longestSeq = 1
+    currentSeq = 0
+    for x in spots
+        if x == 1
+            currentSeq += 1
+        elseif currentSeq != 0
+            longestSeq = max(longestSeq, currentSeq)
+            currentSeq = 0
+        end
+    end
+    longestSeq = max(longestSeq, currentSeq)
+    return longestSeq == 1 ? -1 : longestSeq
+end
+
+@testset "consecutive sequence" begin
+    @test consecutive_sequence([10, 4, 20, 1, 3, 2]) == 4
+    @test consecutive_sequence([0, 6, 1, 8, 5, 2, 4, 3, 0, 7]) == 9
+    @test consecutive_sequence([10, 20, 30]) == -1
+end
diff --git a/challenge-294/barroff/nim/ch_1.nim b/challenge-294/barroff/nim/ch_1.nim
new file mode 100644
index 0000000000..580e40c99d
--- /dev/null
+++ b/challenge-294/barroff/nim/ch_1.nim
@@ -0,0 +1,37 @@
+import std/unittest
+
+from std/sequtils import minmax, repeat
+
+# run tests with following command:
+# nim c -r ch_1.nim
+
+proc consequtive_sequence[T: SomeInteger](ints: openArray[T]): int =
+  let
+    (mn, mx) = minmax(ints)
+  var
+    currentSeq = 0
+    longestSeq = 1
+    spots: seq[bool] = repeat(false, mx + 1 - mn)
+
+  for x in ints:
+    spots[x - mn] = true
+  for x in spots:
+    if x:
+      inc(currentSeq)
+    elif currentSeq != 0:
+      longestSeq = max(longestSeq, currentSeq)
+      currentSeq = 0
+
+  longestSeq = max(longestSeq, currentSeq)
+  return if longestSeq == 1: -1 else: longestSeq
+
+
+suite "consecutive sequence":
+  test "[10, 4, 20, 1, 3, 2]":
+    check(consequtive_sequence([10, 4, 20, 1, 3, 2]) == 4)
+
+  test "[0, 6, 1, 8, 5, 2, 4, 3, 0, 7]":
+    check(consequtive_sequence([0, 6, 1, 8, 5, 2, 4, 3, 0, 7]) == 9)
+
+  test "[10, 30 , 20]":
+    check(consequtive_sequence([10, 30, 20]) == -1)
diff --git a/challenge-294/barroff/raku/ch-1.p6 b/challenge-294/barroff/raku/ch-1.p6
new file mode 100644
index 0000000000..567ea3750b
--- /dev/null
+++ b/challenge-294/barroff/raku/ch-1.p6
@@ -0,0 +1,42 @@
+#!/usr/bin/env raku
+
+use v6.d;
+
+sub consecutive-sequence(@ints --> Int) {
+    my ($minimum, $maximum) = @ints.minmax.minmax;
+    my Bool @spots[$maximum + 1 - $minimum];
+    @spots[0..@spots.elems - 1] = (loop { False });
+    map({ @spots[$_ - $minimum] = True }, @ints);
+    my Int $longest-seq = 1;
+    my Int $current-seq = 0;
+    for @spots {
+        if $_ {
+            $current-seq++;
+        } elsif $current-seq ≠ 0 {
+            $longest-seq = max($current-seq, $longest-seq);
+            $current-seq = 0;
+        }
+    }
+    $longest-seq = max($longest-seq, $current-seq);
+    return $longest-seq == 1 ?? -1 !! $longest-seq;
+
+
+}
+
+#| Run test cases
+multi sub MAIN('test') {
+    use Test;
+    plan 3;
+
+    is consecutive-sequence([10, 4, 20, 1, 3, 2]), 4,
+        'Works for ([10, 4, 20, 1, 3, 2])';
+    is consecutive-sequence([0, 6, 1, 8, 5, 2, 4, 3, 0, 7]), 9,
+        'Works for ([0, 6, 1, 8, 5, 2, 4, 3, 0, 7])';
+    is consecutive-sequence([10, 20, 30]), -1, 'Works for ([10, 20, 30])';
+}
+
+#| Take user provided list like 1 1 2 2 2 3
+multi sub MAIN(*@ints) {
+    say consecutive-sequence(@ints);
+}
+