Create a function
christmas_tree(height) (in Ruby) that returns a Christmas tree of the correct height
christmas_tree(height) should return:
Height passed is always an integer between 0 and 100.
Use \n for newlines between each line.
Pad with spaces so each line is the same length. The last line having only stars, no spaces.
Want to propose a challenge idea for a future post? Email email@example.com with your suggestions!