Merge pull request #8477 from deadmarshal/TWC228

TWC228

2 files changed, 33 insertions, 0 deletions

diff --git a/challenge-228/deadmarshal/lua/ch-1.lua b/challenge-228/deadmarshal/lua/ch-1.lua
new file mode 100644
index 0000000000..0de103fe4e
--- /dev/null
+++ b/challenge-228/deadmarshal/lua/ch-1.lua
@@ -0,0 +1,18 @@
+#!/usr/bin/env lua
+
+local function unique_sum(t)
+  local hash,sum = {},0
+  setmetatable(hash,{__index = function(t,k) return 0 end})
+  for i=1,#t do
+    hash[t[i]] = hash[t[i]] + 1
+  end
+  for k,v in pairs(hash) do
+    if v == 1 then sum = sum + k end
+  end
+  return sum
+end
+
+print(unique_sum({2,1,3,2}))
+print(unique_sum({1,1,1,1}))
+print(unique_sum({2,1,3,4}))
+
diff --git a/challenge-228/deadmarshal/lua/ch-2.lua b/challenge-228/deadmarshal/lua/ch-2.lua
new file mode 100644
index 0000000000..8f3245f208
--- /dev/null
+++ b/challenge-228/deadmarshal/lua/ch-2.lua
@@ -0,0 +1,15 @@
+#!/usr/bin/env lua
+
+local function empty_array(t)
+  local count = 0
+  while #t ~= 0 do
+    if t[1] == math.min(table.unpack(t)) then table.remove(t,1)
+    else table.insert(t,table.remove(t,1)) end
+    count = count + 1
+  end
+  return count
+end
+
+print(empty_array({3,4,2}))
+print(empty_array({1,2,3}))
+