import java.io.File

//TIP Press <shortcut raw="SHIFT"/> twice to open the Search Everywhere dialog and type <b>show whitespaces</b>,
// then press <shortcut raw="ENTER"/>. You can now see whitespace characters in your code.
fun main() {
    val file = File("b.input").readLines();
    val pairsOfSets = file.map {
        Pair(it.substringBefore(","), it.substringAfter(","))
    };

    val number = pairsOfSets.filter { (a, b) -> cntains(parseRange(a), parseRange(b)) }.count();
    println("The number of contained sets is $number");

    val number2 = pairsOfSets.filter { (a, b) -> overlaps(parseRange(a), parseRange(b)) }.count();
    println("The number of overlapping sets is $number2");
}

fun cntains(a:Pair<Int,Int>, b:Pair<Int,Int>): Boolean {
    return ((a.first <= b.first) and (a.second >= b.second)) or
            ((b.first <= a.first) and (b.second >= a.second));
}
fun overlaps(a:Pair<Int,Int>, b:Pair<Int,Int>): Boolean {
    return (a.first in b.first..b.second) or (a.second in b.first..b.second) or cntains(a,b);
}

fun parseRange(a:String): Pair<Int, Int> {
    return Pair(a.substringBefore("-").toInt(),a.substringAfter("-").toInt());
}