Ruby Quiz Solutions

Quiz 7: Countdown

For a description see: Countdown quiz description

Find optimal solutions for the countdown game.

This was quite an interesting quiz. I tried different solutions of varying complexity, but it turned out that the simplest approach worked best.

For more information see Countdown Solutions

Try it with a random setting

Calculate for Target: 420, Source: [8, 8, 3, 3, 75, 50]

Quiz 8: Object Browser

For a description see: Object Browser quiz description

Browse live Ruby Objects.

Another interesting quiz, also it turned out that it is inherently simple, but producing a good gui takes a lot of time.

I implemented a ruby/gnome2 version that is quite usable and may be helpfull when debugging. See the object browser solution.

Quiz 9: Banned Words

For a description see: Banned Words quiz description

Analyze an eMail filter.

A shorter quiz, but this did not make me spend less time on it. I need every excuse not to learn for my exams that I can get :(.

Here you go: banned words solution

Quiz 10: Crossword layout

For a description see: Crossword Words quiz description

Pretty print a crossword layout.

Here you go: Crossword solution

Quiz 11: Tic Tac Toe

For a description see: Tic Tac Toe quiz description

Learn how to play tic tac toe.

Here you go: Tic Tac Toe solution

Quiz 20: 1-800-THE-QUIZ

For a description see: 1-800-THE-QUIZ quiz description

Find words that match a phone number.

Here you go: 1-800-THE-QUIZ solution

Quiz 21: Phonetyping

For a description see: Phonetyping quiz description

Input text using only 12 keys.

Here you go: phonetyping solution

Quiz 22: Roman Numerals

For a description see: Roman Numerals description

Convert numbers from and to roman numerals.

Here you go: roman numerals solution

Quiz 27: Knights Travail

For a description see: Knights Travail description

Dijkstras shortest path algorithm.

Here you go: Knights Travail solution

Quiz 30: Barrel of Monkeys

For a description see: Barrel of monkeys description

Find a continuous songlist. The same game with animals is also very frequently met on highways in cars with children.

Find it here: Barrel of monkeys

Quiz 31: Amazing Mazes

For a description see: Amazing Mazes description

Create a maze and find paths in this maze.

Find it here: Amazing Mazes

Quiz 32: Cows and Bulls

For a description see: Cows and Bulls description

Implement the game of cows and bulls.

Find it here: Cows and Bulls

Quiz 40: Heap Visualization

For a description see: Heap Visualization Description

Visualize a heap in good old ascii art.

Find it here: Heap Visualization

Quiz 49: Lisp Game

For a description see: Lisp Game Description

Rewrite a lisp text adventure in ruby.

Find it here: Lisp Game

Quiz 50: Text Image

For a description see: Text Image Description

Convert images to ascii art.

Find it here: Asciiview