5.coffee

_log = console.log.bind console

input = '''
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'''

VOWELS = 'aeiou'

is_nice = ( str )->
	for bad in ['ab','cd','pq','xy']
		if ~str.indexOf bad
			return no

	vowels = 0
	doubles = 0
	for c, i in str
		vowels++ if c in VOWELS
		doubles++ if c is str[i+1]

	doubles and vowels>=3

is_nice2 = ( str )->
	splits = 0
	paired = no
	pairs = {}
	for c, i in str
		unless paired
			p = str[i..i+1]
			if pairs[p]?
				if pairs[p]<i-1
					paired = yes
			else
				pairs[p] = i

		if c is str[i+2]
			splits++

	paired and splits

count = ( f, input )->
	num = 0
	for s in input.split '\n' when f s
		num++
	num

#_log count is_nice2, 'aizxzai\naaaia\naazzzaa' # yes, no, yes -> 2
_log count is_nice, input
_log count is_nice2, input