20 lines
585 B
Scala
20 lines
585 B
Scala
scala> Array.tabulate(4)(i => Array.tabulate(4)(j => i*4 + j))
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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))
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scala> res12.transpose
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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))
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scala> res12 map (_ map ("%2d" format _) mkString " ") mkString "\n"
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res16: String =
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0 1 2 3
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4 5 6 7
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8 9 10 11
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12 13 14 15
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scala> res13 map (_ map ("%2d" format _) mkString " ") mkString "\n"
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res17: String =
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0 4 8 12
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1 5 9 13
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2 6 10 14
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3 7 11 15
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