To avoid this you can use average function from stdlib, so istead of this:
fun calculateAverageScore(students: Array<Student>) = students.sumBy { it.score } / students.size
You can write:
fun calculateAverageScore(students: Array<Student>) = students.map { it.score }.average()
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To avoid this you can use average function from stdlib, so istead of this:
You can write: