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Determine the order solution in Clear category for Determine the Order by roman.kachanovsky
def checkio(data):
def get_letter(words, pool_of_letters, used_letters):
for l in sorted(pool_of_letters - set(used_letters)):
if all(next(c for c in w if c not in used_letters) == l for w in words if l in w):
return l
letters = set(''.join(data))
result = ''
while len(result) < len(letters):
result += get_letter(data, letters, result)
return result
Nov. 29, 2016