Kata bitshift 28. sept.

leapyear.txt

Write a function that returns true or false depending on whether its input integer is a leap year or not.
Begin on the top and work your way through the rules.

1. A leap year is divisible by 4.
   Ex: 2001 is not a leap year. 1996 is a leap year.
   
2. .. but leap years are not divisible by 100.
   Ex: 1900 is not a leap year.

3. .. unless it's also divisble by 400.
   Ex: 2000 is a leap year.

wordwrap.txt

Write a function that takes two arguments, a string, and a column number. 
The function returns the string, but with line breaks inserted at just the right places 
to make sure that no line is longer than the column number. 

- Try to break lines at word boundaries.
- Introduced new lines should not start by space.
- What about words that are longer than the column number?

================

Advanced:
- Can you break the lines in a more pretty way (less raggy)?

wrap("aaa bb cc ddddd.", 6);

raggy                   pretty
------                  ------
aaa bb                  aaa
cc           vs         bb cc
ddddd.                  ddddd.