2 of 3 added 110 characters in body

J, 23 * 0.5 = 10.5

   f=.-;@(<@|.@i."0@>:@i.)
   f 5
5 4 5 3 4 5 2 3 4 5 1 2 3 4 5

J, 11

   f=.#~@i.@>:
   f 5
1 2 2 3 3 3 4 4 4 4 5 5 5 5 5