TWC215

1 files changed, 28 insertions, 0 deletions

diff --git a/challenge-215/deadmarshal/lua/ch-1.lua b/challenge-215/deadmarshal/lua/ch-1.lua
new file mode 100644
index 0000000000..33055f6bb1
--- /dev/null
+++ b/challenge-215/deadmarshal/lua/ch-1.lua
@@ -0,0 +1,28 @@
+#!/usr/bin/env lua
+
+local function str_split(str)
+  local res = {}
+  str:gsub(".", function(c) table.insert(res,c) end)
+  return res 
+end
+    
+local function is_alphabetical_order(s)
+  local t = str_split(s)
+  for i=2,#t do
+    if t[i] < t[i-1] then return false end
+  end
+  return true
+end
+
+local function odd_one_out(t)
+  local count = 0
+  for i=1,#t do
+    if not is_alphabetical_order(t[i]) then count = count + 1 end
+  end
+  return count
+end
+
+print(odd_one_out({'abc', 'xyz', 'tsu'}))
+print(odd_one_out({'rat', 'cab', 'dad'}))
+print(odd_one_out({'x','y','z'}))
+