Subverting the Software Interview

Re:Subverting the Software Interview by ptspts on Sunday January 15, 2023 @07:44PM (#34395364)

There is “no way” to subvert this FizzBuzz interview when writing code in Python 3 only.

  def inf_range(a):
    while True:
      yield a
      a += 1

  def take(n, it):
    return [a for a, b in zip(it, range(n))]

  def fizzbuzz():
    return (a + b or str(c) for a, b, c in zip(
        (a for _ in inf_range(1) for a in (("", "", "Fizz"))),
        (a for _ in inf_range(1) for a in (("", "", "", "", "Buzz"))),
        inf_range(1)))

  print(take(30, fizzbuzz()))

For bonus points: which alphanumeric characters can be changed in the code above?

[ Parent | on HN ]

Re:Subverting the Software Interview by Kamq on Monday January 16, 2023 @12:10AM (#34397061)

I always liked the version with no branching statements. In python it would be roughly:

    def fizz_str(n):
        return "FIZZ"


    def buzz_str(n):
        return "BUZZ"


    def fizz_buzz_str(n):
        return "FIZZBUZZ"


    def to_str(n):
        return str(n)


    indexes = [3, 0, 0, 1, 0, 2, 1, 0, 0, 1, 2, 0, 1, 0, 0]


    def fizz_buzz(n):
        funcs = [
            to_str,
            fizz_str,
            buzz_str,
            fizz_buzz_str
        ]
        return funcs[indexes[n % 15]](n)


    for i in range(1, 101):
        print(fizz_buzz(i))

[ Parent | on HN ]

Re:Subverting the Software Interview by raluk on Monday January 16, 2023 @01:35AM (#34397561)

Here is another version of similar idea. (no loops and no conditions)

    fizz_buzz = lambda n : (n == 0) or not fizz_buzz(n-1) or not print(['{}',"fizz","buzz","fizzbuzz"][((n%3)==0)|(((n%5)==0)*2)].format(n))

    fizz_buzz(100)

[ Parent | on HN ]

Re:Subverting the Software Interview by rahimnathwani on Monday January 16, 2023 @11:40AM (#34402417)

Nice use of bitwise OR

[ Parent | on HN ]

Re:Subverting the Software Interview by sjadoinqwoeihad on Monday January 16, 2023 @04:38AM (#34398716)

> 0, 0, 1, 0, 2, 1, 0, 0, 1, 2, 0, 1, 0, 0

I never noticed this symmetry in fizzbuzz before.

[ Parent | on HN ]

Re:Subverting the Software Interview by eesmith on Monday January 16, 2023 @01:27AM (#34397506)

It seems like I'm missing a joke.

Is this style in homage to the linked-to page? I can't figure out why you're not using itertools nor re-using itertools names. Is it that translating from .. is that Haskell? .. to Python without idiomatic translation the subversion?

  from itertools import islice, cycle

  def fizzbuzz():
    return (a + b or str(c) for c, (a, b) in enumerate(zip(
       cycle(("", "", "Fizz")),
       cycle(("", "", "", "", "Buzz")),
       ), start = 1))

  >>> print(*islice(fizzbuzz(), 0, 30))
  1 2 Fizz 4 Buzz Fizz 7 8 Fizz Buzz 11 Fizz 13 14 FizzBuzz
  16 17 Fizz 19 Buzz Fizz 22 23 Fizz Buzz 26 Fizz 28 29 FizzBuzz

[ Parent | on HN ]