Re:The Coding Interview
by LiveTheDream on Wednesday October 05, 2011 @10:24AM
(#3075716)
Not all companies have the luxury of time to train a new hire about higher levels of complexity, especially if they should have learned that stuff in school or at a previous job.
FizzBuzz weeds out the entirely incompetent. It is then your job as the interviewer to do your best to select the best of the remainder.
This is an interesting idea: why not use FizzBuzz to show off your understanding of different paradigms?
Someone who barely scrapes out an imperative-style FizzBuzz might not be ideal. On the other hand, someone who can write FizzBuzz in functional and OOP would be better.
Even better would be someone who writes FizzBuzz with a poor order of growth, then explains why the order of growth sucks. That would demonstrate an understanding of algorithmic complexity.
I wonder if anyone looks for this when hiring.
Re:The Coding Interview
by georgieporgie on Wednesday October 05, 2011 @11:18AM
(#3075996)
someone who can write FizzBuzz in functional and OOP would be better.
How would you write an OOP implementation of FizzBuzz? I genuinely don't see how this would be done, short of something really contrived like fizz.Print(), buzz.print().
It would definitely be contrived. Let's see how contrived! ;)
class FizzBuzzer():
def __init__(self, num):
self.mod3 = num % 3 == 0
self.mod5 = num % 5 == 0
def check(self):
s = ""
if self.mod3:
s += "Fizz"
if self.mod5:
s += "Buzz"
print s
def main():
buzzer = FizzBuzzer(n)
buzzer.check()
Sorry to nitpick, but it fails to give "FizzBuzz" for 15 and other multiples of 3 and 5.
The basic FizzBuzz test is about the right level of complexity. It weeds out those people who cannot even do as simple loop while still giving real coders enough rope to work with to show their stuff.
To be honest, the more advanced concepts in programming can be mentored and corrected if the basics are in place. In my experience, once they pass a basic coding test, you are interviewing for culture, to determine if they are a junior or senior coder, and whether or not they know they are a junior coder and will therefore be open to improving.