Contents

import java.util.HashMap

class School {

    private val database = mutableMapOf<Int, List<String>>()
    internal fun db() = HashMap(database)

    fun add(student: String, grade: Int) {
        database[grade] = grade(grade) + student
    }

    fun grade(grade: Int) = database[grade] ?: listOf()

    fun sort() = database.toSortedMap().mapValues { it.value.sorted() }

}

Version data entries

396 entries across 396 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.179	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.178	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.177	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.176	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.175	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.174	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.173	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.172	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.171	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.170	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.169	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.167	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.166	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.165	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.164	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.163	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.162	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.161	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt
trackler-2.2.1.160	tracks/kotlin/exercises/grade-school/.meta/src/reference/kotlin/School.kt