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var recipient = "jeff.skilling@enron.com"; | |
db.messages.aggregate([ | |
{ | |
"$match": { | |
"headers.From": "andrew.fastow@enron.com" | |
} | |
}, | |
{ | |
"$unwind": "$headers.To" | |
}, |
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db.posts.aggregate([ | |
{'$unwind':'$comments'}, | |
{'$match': { | |
'comments.author': { | |
'$ne':'machine' | |
} | |
}}, | |
{'$group': { | |
'_id':'$comments.author', | |
'count': {'$sum':1} |
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var min_homeworks = db.students.aggregate([{"$unwind": "$scores"}, {"$match": {"scores.type": "homework"}}, {"$group": {"_id":"$_id", min_score: {"$min":"$scores.score"}}}]); | |
while (min_homeworks.hasNext()) { | |
var doc = min_homeworks.next(); | |
db.students.update({"_id": doc["_id"]}, {"$pull": {"scores": {"type": "homework", "score": doc["min_score"]}}}); | |
} |
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var cursor = db.grades.aggregate([{$group: {_id: "$student_id", minScore: {$min:"$score"}}}]); | |
while (cursor.hasNext()) { | |
var doc = cursor.next(); | |
db.grades.remove({student_id: doc["_id"], score: doc["minScore"]}); | |
} |
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package fr.devoxx.niveau2.exo1.etape2; | |
import java.util.List; | |
import javax.annotation.Nonnull; | |
import javax.lang.model.element.AnnotationMirror; | |
import javax.lang.model.element.Element; | |
import javax.lang.model.util.Elements; | |
import javax.lang.model.util.Types; | |
/** |
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package fr.devoxx.niveau2.exo2.etape3; | |
import java.util.List; | |
import java.util.stream.Collectors; | |
import javax.annotation.Nonnull; | |
import javax.lang.model.element.Element; | |
import javax.lang.model.element.ExecutableElement; | |
import javax.lang.model.element.TypeElement; | |
import javax.lang.model.util.ElementFilter; | |
import javax.lang.model.util.Elements; |
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new TestContextManager(getClass()).prepareTestInstance(this); |
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main :: IO () | |
main = print $ maximum_path_sum [[75],[95,64],[17,47,82],[18,35,87,10],[20,4,82,47,65],[19,1,23,75,3,34],[88,2,77,73,7,63,67],[99,65,4,28,6,16,70,92],[41,41,26,56,83,40,80,70,33],[41,48,72,33,47,32,37,16,94,29],[53,71,44,65,25,43,91,52,97,51,14],[70,11,33,28,77,73,17,78,39,68,17,57],[91,71,52,38,17,14,91,43,58,50,27,29,48],[63,66,4,68,89,53,67,30,73,16,69,87,40,31],[4,62,98,27,23,9,70,98,73,93,38,53,60,4,23]] | |
maximum_path_sum :: [[Int]] -> Int | |
maximum_path_sum = sum . (maximum_path [] (0,0)) | |
maximum_path :: [Int] -> (Int,Int) -> [[Int]] -> [Int] | |
maximum_path acc i@(x,y) paths | |
| x == (length paths)-1 = acc' | |
| otherwise = maximum_path acc' i' paths |
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main :: IO () | |
main = print $ countLetters [1..1000] | |
countLetters :: [Int] -> Int | |
countLetters = sum . (map (length . translate)) | |
translate :: Int -> String | |
translate 0 = "" | |
translate 1 = "one" | |
translate 2 = "two" |
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import Data.Char | |
sum $ map digitToInt $ show (2^1000) |