Scala : week2: implement singletonSet, and union

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,