fizzbuzz

On occasion you meet a developer who seems like a solid programmer. They know their theory, they know their language. They can have a reasonable conversation about programming. But once it comes down to actually producing code they just don’t seem to be able to do it well.

You would probably think they’re a good developer if you’ld never seen them code. This is why you have to ask people to write code for you if you really want to see how good they are. It doesn’t matter if their CV looks great or they talk a great talk. If they can’t write code well you probably don’t want them on your team.

After a fair bit of trial and error I’ve come to discover that people who struggle to code don’t just struggle on big problems, or even smallish problems (i.e. write a implementation of a linked list). They struggle with tiny problems.

So I set out to develop questions that can identify this kind of developer and came up with a class of questions I call “FizzBuzz Questions” named after a game children often play (or are made to play) in schools in the UK.

In this game a group of children sit around in a group and say each number in sequence, except if the number is a multiple of three (in which case they say “Fizz”) or five (when they say “Buzz”). If a number is a multiple of both three and five they have to say “Fizz-Buzz”.

An example of a Fizz-Buzz question is the following:

[quote]Write a program that prints the numbers from 1 to 100. But for multiples of three print “Fizz” instead of the number and for the multiples of five print “Buzz”. For numbers which are multiples of both three and five print “FizzBuzz”.[/quote]

Most good programmers should be able to write out on paper a program which does this in a under a couple of minutes.

Want to know something scary ? – the majority of comp sci graduates can’t. I’ve also seen self-proclaimed senior programmers take more than 10-15 minutes to write a solution.

I’m not saying these people can’t write good code, but to do so they’ll take a lot longer to ship it. And in a business environment that’s exactly what you don’t want.

This sort of question won’t identify great programmers, but it will identify the weak ones. And that’s definitely a step in the right direction.

I just saw the gay fi ligature in the thread title.

>>121
Wanna fight about it?

>>122
I don't see anything to fight about.

>>122
+8 Susspoints for paying attention to the details.

That reminds me, where did 1 go?

>>124
Excuse me, >>122-san seems to have gotten my eight Susspoints.

I have OVER 1MILLION Susspoints in my offshore Sussbank Sussaccount

What do you mean? >>122-kun was supposed to get them. And this post of yours shows clearly that the prize should indeed be subtracted from your account.

hax my anus

>>128
i love ur retro-style

>>122
I don't see any ligature. It's fi (U+0066 U+0069), not fi (U+FB01).

>>37
How does a cudder look?

ᶠᶦᶻᶻᵇᵕᶼᶼ^{ᶠᶦᶻᶻᵇᵕᶼᶼᶠᶦᶻᶻᵇᵕᶼᶼ〰}

ᶠᶦᶻᶻᵇᵕᶼᶼ

Buzz my anus

:0 j0 + j1 %$0,3 =0 [ p"Fizz" ] j2 %$0,5 =0 [ p"Buzz" g1 ] j1 !0 [ g2 ] :1 j0 =100 [ g99 ] p"\n" g0 :2 j2 !0 [ p$0 g1 ] :99


Expert programming language.

1+1+1+1+1+1+1+1+1+1+1+1= _____________




























http://www.cafepress.com/digitalnasties

I managed to do it in 5 minutes in Java, not my best code ever and I'm only a 1st year student of computer sciences. My code:

public class FizzBuzz
{
   public static void main(String[] args)
     {
    for (int i = 1; i <= 100; ++i)
      {
         if (i % 3 == 0 && i % 5 == 0)
           {
          System.out.println("FizzBuzz");
           }
         else if (i % 3 == 0)
           {
          System.out.println("Fizz");
           }
         else if (i % 5 == 0)
           {
          System.out.println("Buzz");
           }
         else
           {
          System.out.println(i);
           }
      }
     }
}

#include <iostream>
using namespace std;

int divideByThree(int x);
int divideByFive(int x);

int main() {
    int haxus = 1;
    for (haxus; haxus <= 100; haxus++) {
        if (divideByThree(haxus) == 0 && divideByFive(haxus) != 0) {
             cout << "Fizz\n";
             }
        else if (divideByThree(haxus) != 0 && divideByFive(haxus) == 0) {
             cout << "Buzz\n";
             }
        else if (divideByThree(haxus) == 0 && divideByFive(haxus) == 0) {
             cout << "FizzBuzz\n";
             }
        else {
             cout << haxus << "\n";
             }
        }
    return 0;
}

int divideByThree(int x) {
    return x % 3;
}

int divideByFive(int x) {
    return x % 5;
}

>>138
（≖‿≖ ）

/* 12:38:53 AM */


int main() {
   
    int i;
    for (i = 1; i<=100; i++) {
       
        if (!(i%15))
            printf("JizzFizz\n");
        else if (!(i%3))
            printf("Jizz\n");
        else if (!(i%5))
            printf("Fizz\n");
        else
            printf("%d\n", i);
       
       
    }
   
   
}

/* 12:41:22 AM */

/* 14:54:01 */

>>140
You're implementation sucks.

/* 14:54:12 */

/* 11:02:26 AM */

You're grammar sucks.

/* 11:02:35 AM */

hey guys im sweden

-module(fb).
-export([fb/0]).

fb() -> fibu(100).

fibu(1) -> 1;
fibu(N) when (N rem 3) == 0, (N rem 5) == 0  -> io:format("Fizz-Buzz~n",[]),
                                                fibu(N-1);
fibu(N) when (N rem 3) == 0                  -> io:format("Fizz~n",[]),
                                                fibu(N-1);
fibu(N) when (N rem 5) == 0                  -> io:format("Buzz~n",[]),
                                                fibu(N-1);
fibu(N)                                      -> io:format("~w~n",[N]),
                                                fibu(N-1).

(define fizzbuzz
  (λ(ceiling)
    (let ((fb (list 'n 'n 'fizz 'n 'buzz 'fizz 'n 'n 'fizz 'buzz 'n 'fizz 'n 'n 'fizzbuzz)))
      (let L ((cycle fb)
              (n 1))
        (if (= ceiling n)
            empty
            (let ((cycle (if (empty? cycle) fb cycle)))
              (let ((val (if (eq? 'n (car cycle)) n (car cycle))))
                (cons val (L (cdr cycle) (+ 1 n))))))))))

>>144
I rate your post -1 because it uses a capital letter in scheme. Disgusting. NO CAPITAL LETTERS!

99.9% of Computer Science papers are descriptions of efficient algorithms/data structures that are impractical to implement.

>They know their theory, they know their language.
It is better if they know mathematics and algorithmics. After, the language is less important.

Here some poeple check that x is divisible by 3 and is divisible by 5. It is faster to check that x is divible by 15.

CHECK MY ANUS

>>145
Thank you for your constructive criticism, I will work on it!!

>>147
Don't help them!!


#include <stdlib.h>
int main(){char*f="Fizz",*b="Buzz",i;for(i=0;i<101;i++)printf((i%3)?((i%5)?"%3$d\n":"%2$s\n"):((i%5)?"%s\n":"%s%s\n"),f,b,i);}

>>151

#include <stdlib.h>
int main(){char*f="Fizz",*b="Buzz",i;for(i=0;i<101;i++)printf(i%3?i%5?"%3$d\n":"%2$s\n":i%5?"%s\n":"%s%s\n",f,b,i);}

>>152

#include <stdlib.h>
int main(){char*f="Fizz",*b="Buzz\n",i;for(i=0;++i<101;)printf(i%3?i%5?"%3$d\n":b:i%5?"%s\n":"%s%s",f,b,i);}

>>153
i;main(){while(i++<100)printf("%s%s%.d\n",i%3?"":"Fizz",i%5?"":"Buzz",i%5&&i%3?i:0);}

>>154
#include <stdlib.h>
i;main(){while(i++<100)printf("%s%s%.d\n",i%3?"":"Fizz",i%5?"":"Buzz",i%15?i:0);}

>>155
#include <sys/mman.h>
main(){facepalm();}

int main(){return -1;}

i%3?"":"Fizz",i%5?"":"Buzz",i%15?i:0)
"1
"2
"Fizz3
"4
"Buzz5"
I might be misinterpreting the printf (I've always been bad about that) but this is not what the instructions ask.

MISINTERPRET MY ANUS

#include <fizzbuzz.c>