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This is my Ruby translation to Peter Norvig's solution to When is Cheryl's Birthday problem.

When is Cheryl's Birthday?

  1. Albert and Bernard just became friends with Cheryl, and they want to know when her birthday is. Cheryl gave them a list of 10 possible dates:

        May 15     May 16     May 19
       June 17    June 18
       July 14    July 16
     August 14  August 15  August 17
    
  2. Cheryl then tells Albert and Bernard separately the month and the day of the birthday respectively.

  3. Albert: I don't know when Cheryl's birthday is, but I know that Bernard does not know too.

  4. Bernard: At first I don't know when Cheryl's birthday is, but I know now.

  5. Albert: Then I also know when Cheryl's birthday is.

  6. So when is Cheryl's birthday?

View Peter Norvig's solution translate in Ruby:

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See norvig/pytudes - Python programs to practice or demonstrate skills, it's gold.

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Ruby translation of Peter Norvig's solution to When is Cheryl's birthday problem

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