def enqueue(reindeer):
"""
>>> list(p.take(6, enqueue(('Vixen', 8, 2, 2))))
[8, 16, 16, 16, 24, 32]
"""
_, speed, running, resting = reindeer
one_cycle = it.chain(it.repeat(speed, running), it.repeat(0, resting))
return p.drop(1, p.scan(operator.add, it.cycle(one_cycle), 0))
def get_passwords(string):
"""
>>> next(get_passwords('abcdefgh'))
'abcdffaa'
>> next(get_passwords('ghijklmn'))
'ghjaabcc'
"""
seq = p.drop(1, p.iterate(inc_string, string))
passwords = filter(meets_reqs, seq)
return passwords
def make_pairs(seating):
"""
>>> list(make_pairs([1,2,3]))
[(1, 2), (2, 3)]
"""
return zip(seating, p.drop(1, seating))