September 2017 Update

Task/Combinations-with-repetitions/CoffeeScript/combinations-with-repetitions-1.coffee

@@ -1,12 +0,0 @@
-combos = (arr, k) ->
-  return [ [] ] if k == 0
-  return [] if arr.length == 0
-
-  combos_with_head = ([arr[0]].concat combo for combo in combos arr, k-1)
-  combos_sans_head = combos arr[1...], k
-  combos_with_head.concat combos_sans_head
-
-arr = ['iced', 'jam', 'plain']
-console.log "valid pairs from #{arr.join ','}:"
-console.log combos arr, 2
-console.log "#{combos([1..10], 3).length} ways to order 3 donuts given 10 types"

Task/Combinations-with-repetitions/CoffeeScript/combinations-with-repetitions-2.coffee

@@ -1,8 +0,0 @@
-jam,plain:
-[ [ 'iced', 'iced' ],
-  [ 'iced', 'jam' ],
-  [ 'iced', 'plain' ],
-  [ 'jam', 'jam' ],
-  [ 'jam', 'plain' ],
-  [ 'plain', 'plain' ] ]
-220 ways to order 3 donuts given 10 types