Merge remote-tracking branch 'upstream/master'

1 files changed, 26 insertions, 0 deletions

diff --git a/challenge-195/deadmarshal/lua/ch-1.lua b/challenge-195/deadmarshal/lua/ch-1.lua
new file mode 100644
index 0000000000..e2b7dfcf00
--- /dev/null
+++ b/challenge-195/deadmarshal/lua/ch-1.lua
@@ -0,0 +1,26 @@
+#!/usr/bin/env lua
+
+local function has_dups(n)
+  assert(type(n) == 'number','n must be a number!')
+  if n > 9999999999 then return true end
+  local hash = {}
+  while n ~= 0 do
+    if(hash[n%10] ~= nil) then return true end
+    hash[n%10] = 1
+    n = n // 10
+  end
+  return false
+end
+
+local function special_integers(n)
+  assert(type(n) == 'number','n must be a number!')
+  local count = 0
+  for i=1, n do
+    if not has_dups(i) then count = count + 1 end
+  end
+  return count
+end
+
+print(special_integers(15))
+print(special_integers(35))
+