покакал

#1

def lines(xs, width):
    res = []
    count = len(xs) % width == 0 and len(xs)//width or len(xs)//width + 1

    cur = 0
    for i in range(count):
        res.append(xs[cur:(i+1)*width])
        cur = (i+1)*width

    return res

print(lines('12345', 2))

#2
def geom_limit(b0, q, limit):
    member = b0
    while member <= limit:
        new = member*q
        if new > limit:
            return member
        member = new

print(geom_limit(2, 2, 9))

#3
def find_first_true(xs):
    for x in xs:
        if x:
            return x
    return False

print(find_first_true([False, 1, True]))