A family of kookaburras are in my backyard.

I can't see them all, but I can hear them!

# How many kookaburras are there?




## Hint 

The trick to counting kookaburras is to listen carefully

* The males go ```HaHaHa```...

* The females go ```hahaha```...

* And they always alternate male/female



^ Kata Note : No validation is necessary; only valid input will be passed :-)

Difficulty: EASY
Starter code: def kooka_counter(laughing):
	

Solutions:
import re

def kooka_counter(laughing):
	return len(re.findall('(ha)+|(Ha)+', laughing))


def kooka_counter(laughing):
	return 0 if laughing == '' else laughing.count('Hah') + laughing.count('haH') + 1


def kooka_counter(laughing):
	return laughing.count('Haha') + laughing.count('haHa') + bool(laughing)


import re

def kooka_counter(stri):
	stri = re.sub('H+', 'H', stri.replace('a', ''))
	stri = re.sub('h+', 'h', stri.replace('a', ''))
	return len(stri)


import re
pattern = re.compile('(Ha)+|(ha)+')

def kooka_counter(laughing):
	return len(pattern.findall(laughing))


def kooka_counter(laughing):
	if len(laughing) == 0:
		return 0
	return laughing.count('haHa') + laughing.count('Haha') + 1


def kooka_counter(laugh):
	count = 0
	while laugh:
		pat = laugh[:2]
		laugh = laugh.lstrip(pat)
		count += 1
	return count


def kooka_counter(laughing):
	if len(laughing) == 0:
		return 0
	kooks = 1
	current = laughing[0]
	for i in range(2, len(laughing), 2):
		if laughing[i] != current:
			current = current.swapcase()
			kooks += 1
	return kooks