Recap - Frequency Report

Part of the Logic & Flow section of Coddy's Kotlin journey. Lesson 10 of 63.

Challenge

Medium

Complete frequencyReport with parameters words: List<String>. Return one word=count string per distinct word, in alphabetical word order. Words are lowercase ASCII. An empty input returns an empty list.

Unless stricter bounds are stated above, collections contain at most 100 elements at each level, and integer arguments and integer collection values are between -1000 and 1000. Text supplied for parsing can include invalid or out-of-range representations as described.

Return a value of type List<String>. Keep the supplied input/output code. It reads scalar arguments one per line; a list starts with its count followed by its elements, and a map starts with its entry count followed by each key and value. Nested lists repeat the count-and-elements format for each row. The supplied main prints the return value followed by one newline. Lists use Kotlin's standard bracketed format; print no additional labels.

Try it yourself

fun frequencyReport(words: List<String>): List<String> {
    // Write your solution here.
    return emptyList()
}
fun main() {
    val wordsCount = readln().toInt()
    val words = mutableListOf<String>()
    for (i0 in 0 until wordsCount) {
        val wordsItem = readLine().orEmpty()
        words.add(wordsItem)
    }
    println(frequencyReport(words))
}