fix some file extensions

Task/Self-referential-sequence/CoffeeScript/self-referential-sequence.coffeescript

@@ -1,42 +0,0 @@
-sequence = (n) ->
-  cnts = {}
-  for c in n.toString()
-    d = parseInt(c)
-    incr cnts, d
-
-  seq = []
-  while true
-    s = ''
-    for i in [9..0]
-      s += "#{cnts[i]}#{i}" if cnts[i]
-    if s in seq
-      break
-    seq.push s
-
-    new_cnts = {}
-    for digit, cnt of cnts
-      incr new_cnts, cnt
-      incr new_cnts, digit
-    cnts = new_cnts
-  seq
-
-incr = (h, k) ->
-  h[k] ?= 0
-  h[k] += 1
-
-descending = (n) ->
-  return true if n < 10
-  tens = n / 10
-  return false if n % 10 > tens % 10
-  descending(tens)
-
-max_len = 0
-for i in [1..1000000]
-  if descending(i)
-    seq = sequence(i)
-    if seq.length > max_len
-      max_len = seq.length
-      max_seq = seq
-      max_i = i
-
-console.log max_i, max_seq