Globo.com puzzle at Python Brasil 9

globo_puzzle

#coding: utf-8
numbers = {'1': 'um', '2': 'dois', '3': 'três', '4': 'quatro', '5': 'cinco',
           '6': 'seis', '7': 'sete', '8': 'oito', '9': 'nove', '0': 'zero'}

units = ['milhão','milhar', 'centenas', 'dezenas', 'unidades'][::-1]

chars_incidence = {}

def puzzle(n):
	fat = 1
	for i in range(1, n+1):
		if i % 3 == 0 and i % 5 == 0:
			print 'ping pong'
		elif i % 3 == 0:
			print 'ping'
		elif i % 5 == 0:
			print 'pong'

		fat = fat * i

	print 'fatorial de %d = %d' %(n, fat) 


	print str(fat)
	result = []
	for i, ch in enumerate(str(fat)[::-1]):
		result += "%s %s " % (numbers[ch], units[i])

	for ch in result:
		if ch == ' ':
			continue
		if chars_incidence.get(ch, False):
			chars_incidence[ch] = chars_incidence[ch] +1
		else:
			chars_incidence[ch] = 1

	print result
	print chars_incidence