Test your skills (2005)

[wtd]

I figure a new year calls for a new tradition. So, as I come up with questions, I'll post them here, and invite others to PM answers to me within the next week. 20 bits to anyone who can answer correctly.

So, the first question is a Ruby question.

Why does the first print

code:

[2, 4, 6]

to the screen, and the second print

code:

[1, 2, 3]

The code:

code:

p [1, 2, 3].collect { |x| x * 2 }

code:

p [1, 2, 3].collect do |x| x * 2 end

[MihaiG]

can you post something for VB or turing?

[wtd]

Possibly, though I'll admit to not being fond of either of those languages.

[Acid]

Could you post some C++ too?

Not like I'll get the question anyway...

[wtd]

I write the following program and compile it with a modern C++ compiler (GCC 3.3):

code:

#include <iostream.h> main() {    cout << "Hello world!" << endl; }

It compiles and runs, but I've made four mistakes. Name them. 5 bits for each mistake.

[wtd]

Private message, please, so multiple people can answer the question.

I'll post answers at the end of the week.

[Hikaru79]

Hey, sweet idea, wtd Hopefully this'll turn into a long-standing tradition at compsci.ca

Can anyone chip in with their own questions, or only the thread owner?

PS: You're very close to 1337 posts I wanna take a screenshot when that happens!

[wtd]

Hikaru79 wrote:

Hey, sweet idea, wtd Hopefully this'll turn into a long-standing tradition at compsci.ca

Can anyone chip in with their own questions, or only the thread owner?

PS: You're very close to 1337 posts I wanna take a screenshot when that happens!

You can chip in, but if you're going to award bits, they have to be your bits.

A general suggesion: questions should ask questions that don't get asked much. Like the C++ question, "this works, but what am I doing wrong?" or "not just does this work, but why does it work that way?"

[wtd]

Write a program which prompts for the user's name and accepts it on a single line, then greets the user in all caps. A sample run might look like:

code:

You are? Simon HELLO SIMON!  SORRY FOR YELLING!!!

Reference material:

http://www.haskell.org
http://www.familygeek.com/haskell/tutorial.html

[Andy]

with what language? haskell only?

[wtd]

dodge_tomahawk wrote:

with what language? haskell only?

Yes. 20 bits if you get it right and PM me before the 9th.

Hint: My tutorial covers similar territory.

[AsianSensation]

nice wtd, I think this is a good challenge, and should not only be stickified, but also receive proper funding.

If you run out of bits, just ask, the mods will be happy to reimburse you.

[Andy]

lol.. i doubt wtd will run out any time soon

[bugzpodder]

i'd post questions but i am too cheap to give away my bits... (like how rich ppl likes to hold their money)

[Andy]

LOL.. i'll give away bits for u bugz