Hello!
I am having troubles with the last test of the “double letter” clash :
The program:
Your program must find all the “double letter” words. A word is “double letter” if it contains at least two identical letters next to each other.
Letter case does not matter, so A == a.
The tricky one is just “balloon” and we have to output 1.
I am pretty sure I missed something but I have no clue of what it is.