lynbrook computer science monday, december 7 th, 2009
TRANSCRIPT
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Lynbrook Computer ScienceMonday, December 7th, 2009
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American Computer Science League (ACSL)•Fun computer science contest•Written portion
▫5 questions, 40 minutes•Programming portion
▫Free response, take home, 72 hours
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Divisions
•Senior division▫APCS students▫Advanced computer science concepts
•Intermediate division▫JAVA students▫Intermediate computer science concepts
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Topics Covered
•LISP▫(CDR ’((2 (3))(4 (5 6) 7)))
•Computer Number Systems▫X16 = 36768
•Recursion▫y = f (f (x-2))+1 if x > 1; y = 1 if x = 1
•IF-THEN-ELSE▫Programming Portion▫if (<condition>) { <stuff> } else
{ <otherStuff> }
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Scoring
•Written portion▫5 questions, 5 points
•Programming portion▫1 question, 5 test cases, 5 points
•Total score = out of ten▫int totalScore = written.computeScore() +
program.computeScore();▫0 <= totalScore <= 10
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Team placement
•Team for each division•5 members per team•Top 5 total scores from each division are
sent
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Extra Credit!
•APCS students▫Only awarded for Senior Division
•JAVA students▫Awarded for any division
•Both parts must be taken for extra credit•No late submissions accepted!
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Dates
•Programming portion▫Prompt distributed on Friday, 12/11/09▫Program Due online by 10:00AM on
Monday, 12/14/09•Written portion
▫Taken during lunch on Monday, 12/14/09, in Mr. Peck’s room