advent-of-code-2024/day9/part2.kts

47 lines
No EOL
1.1 KiB
Kotlin

#!/usr/bin/env kotlin
import java.io.File
import java.util.*
val debug = true
val disk = File(if (args.size >= 1 && args[0] == "example") "./example.txt" else "./input.txt").readLines()[0]
// Parse into labeled sections
var id = 0
val parsed = disk.flatMapIndexed { i, char -> // I love linked lists i love linked lists i love linked lists
val num = char.digitToInt()
if (i % 2 == 0) {
// Every other starting with i = 0 should be real data
List(num) { i / 2 }
} else {
List(num) { null }
}
}.toMutableList()
var iter = parsed.asReversed().listIterator()
println(parsed.asReversed())
while (true) {
var startOfGroup = iter.next()
while (startOfGroup == null) {
startOfGroup = iter.next()
}
println(iter.nextIndex() - 1)
var endOfGroup = iter.next()
while (endOfGroup == startOfGroup) {
endOfGroup = iter.next()
}
iter.previous()
println(iter.nextIndex() - 1)
break
var emptySpaceBuffer = 0
for (i in parsed.indices) {
if (parsed[i] == null) emptySpaceBuffer += 1
else emptySpaceBuffer = 0
// if (emptySpaceBuffer == )
}
}