Computer scienceProgramming languagesKotlinTypes and data structuresOperations with collections

Grouping collections

The result of code

Report a typo

What is the result of applying groupingBy in this code?

val names = listOf("anne", "dimitry", "michael", "alice", "dany")
println(names.groupingBy { it.length }.fold(0) { acc, name -> acc + name.length })

Select one option from the list

{4=8, 7=14, 5= 5}

{a=[anne, alice], d=[dany, dimitry], m=[michael]}

{4=[anne, dany], 7=[dimitry, michael], 5=[alice]}

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