// Function that flattens a 2D array, sorts it, removes duplicates,
// and returns a new sorted list with unique values
fun flattenSortUnique(array2d: Array<IntArray>): List<Int> {
// 1. Flatten the 2D array into a 1D list
val flat = array2d.flatMap { it.asList() }
// 2. Sort the flattened list
val sorted = flat.sorted()
// 3. Remove duplicates using distinct
val unique = sorted.distinct()
return unique
}
fun main() {
val array2d = arrayOf(
intArrayOf(4, 3, 3, 2, 4),
intArrayOf(30, 10, 10),
intArrayOf(10, 30),
intArrayOf(1, 1, 6, 7, 7, 7, 8)
)
val arr = flattenSortUnique(array2d)
// Print results
arr.forEach { n ->
print("$n\t")
}
}
/*
run
1 2 3 4 6 7 8 10 30
*/
