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-rw-r--r--Scala/funsets/src/main/scala/funsets/FunSets.scala4
1 files changed, 2 insertions, 2 deletions
diff --git a/Scala/funsets/src/main/scala/funsets/FunSets.scala b/Scala/funsets/src/main/scala/funsets/FunSets.scala
index 594a49d..c6d5ea5 100644
--- a/Scala/funsets/src/main/scala/funsets/FunSets.scala
+++ b/Scala/funsets/src/main/scala/funsets/FunSets.scala
@@ -20,13 +20,13 @@ object FunSets {
/**
* Returns the set of the one given element.
*/
- def singletonSet(elem: Int): Set = ???
+ def singletonSet(elem: Int): Set = (x => x == elem)
/**
* Returns the union of the two given sets,
* the sets of all elements that are in either `s` or `t`.
*/
- def union(s: Set, t: Set): Set = ???
+ def union(s: Set, t: Set): Set = (x => s(x) | t(x))
/**
* Returns the intersection of the two given sets,