## Saturday, April 28, 2007

### Podcast With Jeff Atwood From Coding Horror

Jeff Atwood is on the latest podcast from DotNetRocks, Jeff Atwood is the guy who blogs on CodingHorror. If you have never heard of CodingHorror then you should definitely check it out

A couple of weeks ago there was a post titled Why Can't Programmers.. Program?

In that post there is the FizzBuzz challenge. What is the FizzBuzz challenge?

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".

So what is the problem? Well this is what Jeff said

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.

Interesting indeed. Anyway listen to the podcast which you can download here: Jeff Atwood on the Human Side of Software Development

In the meanwhile here is the T-SQL solution, of course if you had a number table you could skip the loop.

DECLARE @LoopInt INT
SET
@LoopInt =1
WHILE @LoopInt <= 100 BEGIN

PRINT ISNULL(NULLIF(CASE WHEN @LoopInt % 3 = 0 THEN 'Fizz' ELSE '' END
+ CASE WHEN @LoopInt % 5 = 0 THEN 'Buzz' ELSE '' END, ''), @LoopInt)

SET @LoopInt= @LoopInt + 1
END

Output
------------------
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
31
32
Fizz
34
Buzz
Fizz
37
38
Fizz
Buzz
41
Fizz
43
44
FizzBuzz
46
47
Fizz
49
Buzz
Fizz
52
53
Fizz
Buzz
56
Fizz
58
59
FizzBuzz
61
62
Fizz
64
Buzz
Fizz
67
68
Fizz
Buzz
71
Fizz
73
74
FizzBuzz
76
77
Fizz
79
Buzz
Fizz
82
83
Fizz
Buzz
86
Fizz
88
89
FizzBuzz
91
92
Fizz
94
Buzz
Fizz
97
98
Fizz
Buzz