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marking3/knight1_test4.scala
author Christian Urban <christian dot urban at kcl dot ac dot uk>
Mon, 05 Aug 2019 20:14:06 +0100
changeset 269 86a85865e772
parent 244 a359976a6f3e
child 331 e3878cdd38bc
permissions -rw-r--r--
updated


val f = (x:(Int, Int)) => if (x._1 > 3) Some(List(x)) else None

assert(first(List((1,0),(2,0),(3,0),(4,0)), f) == Some(List((4,0))))
assert(first(List((1,0),(2,0),(3,0)), f) == None)
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