fun rowToString(row: List<Int>): String {
return row.joinToString(",")
}
fun findRepeatedRows(matrix: List<List<Int>>) {
val rowCount = mutableMapOf<String, Int>()
for (row in matrix) {
val pattern = rowToString(row)
rowCount[pattern] = rowCount.getOrDefault(pattern, 0) + 1
}
println("Repeated Rows:")
rowCount.filter { it.value > 1 }.forEach { (pattern, count) ->
println("Row: [$pattern] - Repeated $count times")
}
}
fun main() {
val matrix = listOf(
listOf(1, 2, 3),
listOf(4, 5, 6),
listOf(1, 2, 3),
listOf(7, 8, 9),
listOf(4, 5, 6),
listOf(0, 1, 2),
listOf(4, 5, 6)
)
findRepeatedRows(matrix)
}
/*
run:
Repeated Rows:
Row: [1,2,3] - Repeated 2 times
Row: [4,5,6] - Repeated 3 times
*/
