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A-M baby

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Ingy döt Net 2013-04-10 21:29:02 -07:00
parent 764da6cbbb
commit db842d013d
19005 changed files with 197040 additions and 7 deletions
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Task/Matrix-transposition/Scala/matrix-transposition.scala Normal file
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scala> Array.tabulate(4)(i => Array.tabulate(4)(j => i*4 + j))
res12: Array[Array[Int]] = Array(Array(0, 1, 2, 3), Array(4, 5, 6, 7), Array(8, 9, 10, 11), Array(12, 13, 14, 15))
scala> res12.transpose
res13: Array[Array[Int]] = Array(Array(0, 4, 8, 12), Array(1, 5, 9, 13), Array(2, 6, 10, 14), Array(3, 7, 11, 15))
scala> res12 map (_ map ("%2d" format _) mkString " ") mkString "\n"
res16: String =
0 1 2 3
4 5 6 7
8 9 10 11
12 13 14 15
scala> res13 map (_ map ("%2d" format _) mkString " ") mkString "\n"
res17: String =
0 4 8 12
1 5 9 13
2 6 10 14
3 7 11 15