Best of Ruby Quiz Pragmatic programmers phần 9 docx
Best of Ruby Quiz Pragmatic programmers phần 9 docx
... need to
solve the quiz. How do we “learn” the game? Let’s look to history for
the answer.
The History of MENACE
This quiz was inspired by the research of Donald Michie. In 196 1
he built a “machine” ... num) op num) op num)
A tricky example posted to Ruby Talk by daz, "Target: 92 6, Source: 75,
2, 8, 5, 10, 10," shows off the folly of this approach. The only answer is
t...
Best of Ruby Quiz Pragmatic programmers phần 10 docx
... online, 13, 59
Discussion
1-800-THE -QUIZ, 153–1 59
Amazing Mazes, 214–224
Animal Quiz, 81–88
Banned Words, 191 – 194
Barrel of Monkeys, 203–213
Code Cleaning, 183– 190
Countdown, 2 39 248
Crosswords, ... the Pragmatic Program-
mers wi l l be there with more titles and products to help programmers stay on top of their
game.
Visit Us O nline
Best of Ruby Quiz
pragmaticprog...
Best of Ruby Quiz Pragmatic programmers phần 1 ppsx
... and
http://rubyquiz.com/madlibs/Gift_Giving.madlib
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QUIZ 9. ROCK PAPER SCISSORS 20
Quiz
9
Answer on page 121
Rock Paper Scissors
Generals, break out your copies of The Art of War[Tzu05], ... CGI-based solution at
the Ruby Quiz site.
5
You can find the two Mad Libs files I’m using on
the Ruby Quiz site as well.
6
5
http://rubyquiz.com/cgi-bin/madlib.cgi
6
http://...
Best of Ruby Quiz Pragmatic programmers phần 2 pps
... make the best five-card hand from a total of seven cards (five shared
among all players):
Kc 9s Ks Kd 9d 3c 6d
9c Ah Ks Kd 9d 3c 6d
Ac Qc Ks Kd 9d 3c
9h 5s
4d 2d Ks Kd 9d 3c 6d
7s Ts Ks Kd 9d
Each ... are at the front of the listing. That gives us the
following for our sample hand:
Kd Ks Kc 9d 9s 6d 3c Full House (Winner)
Ks Kd 9d 9c Ah 6d 3c Two Pair
Ac Qc Ks Kd 9d 3c
9h 5s
Kd 9d 6d 4d 2...
Best of Ruby Quiz Pragmatic programmers phần 3 doc
... written in Ruby. You can learn more at
http://www.rubyonrails.org/.
21
ERB is eRuby’s pure -Ruby cousin. eRuby is written in C and stands for “embedded
Ruby. ”
22
You can learn about ERB’s other features ... sport programmers sometimes engage in to code a solution in a minimal
amount of keystrokes. They will often use surprising code constructs, as long as it shaves
off a few character...
Best of Ruby Quiz Pragmatic programmers phần 5 pot
... @level.index(/@|\+/)
return pos % 19, pos / 19
end
def
[](x, y)
@level[x + y * 19]
end
def
[]=(x, y, v)
@level[x + y * 19] = v
end
def
to_s
(0 16).map {|i| @level[i * 19, 19] }.join("\n")
end
end
levels ... /^(?:[123]\d{3}|[1 -9] \d{0,2})$/
That first Regexp is a validator for the Roman let ter combinations we
accept, split up by powers of ten. The second Regexp is a pattern to
m...
Best of Ruby Quiz Pragmatic programmers phần 6 ppsx
... fruits of our
labor. A caller of this method provides a phone number and receives
ready-to-print w ord replacements.
Here’s the last bit of code that implements the quiz interface:
1_800_the _quiz/ phone_words.rb
if ... the quiz itself already gave
us a handful of test cases.
Testing a Cipher
The first part of the quiz describes encryption and decryption, so I
started by yankin...
Best of Ruby Quiz Pragmatic programmers phần 7 potx
... am:
code_cleaning/p2p_clean.rb
#!/usr/local/bin /ruby
#
# p2p.rb
#
# Server: ruby p2p.rb password server public-uri private-uri merge-servers
# Sample: ruby p2p.rb foobar server druby://123.123.123.123:1337
# druby://:1337 druby://foo.bar:1337
# ... a run:
The alphabetically first number (1 -99 9) is: eight
The first non-empty degree word (10**3-10**100) is: billion
The next first word (...
Best of Ruby Quiz potx
... in order of value. That is, from top to
bottom, we’ll always start with the following deck:
Ace of clubs
to
King of clubs
Ace of diamonds
to
King of diamonds
Ace of hearts
to
King of hearts
Ace ... (Consider the deck
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QUIZ 4. ANIMAL QUIZ 11
Quiz
4
Answer on page 81
Animal Quiz
Posed by Jim Weirich
Here’s an animal quiz progr am to try as a Ruby Q...
Best of Ruby Quiz doc
... piece of the puzzle, generating th e keystream letters.
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QUIZ 4. ANIMAL QUIZ 11
Quiz
4
Answer on page 81
Animal Quiz
Posed by Jim Weirich
Here’s an animal quiz progr am to try as a Ruby ... work with
someday.
The set of weekly programming challenges for the Ruby programming
language called Ruby Quiz
2
was born out of my desire to share this
with the rest...
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