100 doors: Difference between revisions

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@@ Line 4,191: / Line 4,191: @@
 =={{header|Kotlin}}==
 <lang Kotlin>fun oneHundredDoors(): List<Int> {
-    val doors = Array<Boolean>(100, { false })
+    val doors = BooleanArray(100, { false })
     for (i in 0..99)
@@ Line 4,197: / Line 4,197: @@
             doors[j] = !doors[j]
-    return IndexIterator(doors.iterator()).filter { it.second }
+    return doors.asSequence().mapIndexed { i, b -> i to b }.filter { it.second }
-                                          .map { it.first + 1 }
+            .map { it.first + 1 }.toList()
-                                          .toList()
 }</lang>