Initial data commit

Task/Greatest-subsequential-sum/Elixir/greatest-subsequential-sum-2.elixir

@@ -0,0 +1,11 @@
+defmodule Greatest do
+  def subseq_sum(list) do
+    limit = length(list) - 1
+    ij = for i <- 0..limit, j <- i..limit, do: {i,j}
+    Enum.reduce(ij, {0, []}, fn {i,j},{max, subseq} ->
+      slice = Enum.slice(list, i..j)
+      sum = Enum.sum(slice)
+      if sum > max, do: {sum, slice}, else: {max, subseq}
+    end)
+  end
+end