Update kotlin-quiz.md (#2794)

Ebazhanov · Dec 11, 2021 · 1b1a91d · 1b1a91d
1 parent c0b6aa1
commit 1b1a91d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/kotlin/kotlin-quiz.md b/kotlin/kotlin-quiz.md
@@ -673,7 +673,7 @@ fun main() = runBlocking {
 data class Student(val firstName: String, val lastName: String)
 ```
 
-- [x] `println(students.groupBy{ it.lastName.first() }.count())`
+- [x] `println(students.groupBy{ it.lastName }.count())`
 - [ ] `println(students.groupBy{ it.lastName.first() }.fold().count())`
 - [ ] `println(students.groupingBy{ it.lastName.first() }.count())`
 - [ ] `println(students.groupingBy{ it.lastName.first() }.size())`