結果
| 問題 |
No.1 道のショートカット
|
| コンテスト | |
| ユーザー |
バカらっく
|
| 提出日時 | 2019-08-29 04:45:53 |
| 言語 | Kotlin (2.1.0) |
| 結果 |
AC
|
| 実行時間 | 1,142 ms / 5,000 ms |
| コード長 | 2,326 bytes |
| コンパイル時間 | 17,374 ms |
| コンパイル使用メモリ | 453,960 KB |
| 実行使用メモリ | 94,408 KB |
| 最終ジャッジ日時 | 2024-07-20 16:43:00 |
| 合計ジャッジ時間 | 39,692 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 40 |
コンパイルメッセージ
Main.kt:3:10: warning: parameter 'args' is never used
fun main(args: Array<String>){
^
Main.kt:6:9: warning: variable 'roadCount' is never used
val roadCount = readLine()!!.toInt()
^
Main.kt:62:38: warning: unnecessary non-null assertion (!!) on a non-null receiver of type Map.Entry<Int, Int>
println(it.minBy { it.value }!!.value)
^
ソースコード
import java.util.*
fun main(args: Array<String>){
val cityCount = readLine()!!.toInt()
val maxMoney = readLine()!!.toInt()
val roadCount = readLine()!!.toInt()
val roadStartList = readLine()!!.split(" ").map { it.toInt() }
val roadToList = readLine()!!.split(" ").map { it.toInt() }
val roadChargeList = readLine()!!.split(" ").map { it.toInt() }
val roadTimeList = readLine()!!.split(" ").map { it.toInt() }
// start, to, Road
val road = mutableMapOf<Int, MutableMap<Int, MutableList<Road>>>()
for(i in roadStartList.indices) {
val startCity = roadStartList[i]
val toCity = roadToList[i]
val charge = roadChargeList[i]
val time = roadTimeList[i]
if(!road.containsKey(startCity)) {
road[startCity] = mutableMapOf()
}
if(!road[startCity]!!.containsKey(toCity)) {
road[startCity]!![toCity] = mutableListOf()
}
road[startCity]!![toCity]!!.add(Road(charge, time))
}
val queue = LinkedList<Task>()
// city, charge, time
val map = mutableMapOf<Int, MutableMap<Int, Int>>()
queue.push(Task(1, 0, 0))
while (queue.isNotEmpty()) {
val task = queue.pop()
if(!map.containsKey(task.location)) {
map[task.location] = mutableMapOf()
}
if(!map[task.location]!!.containsKey(task.subTotalCharge)) {
map[task.location]!![task.subTotalCharge] = task.time
} else if(map[task.location]!![task.subTotalCharge]!! > task.time) {
map[task.location]!![task.subTotalCharge] = task.time
} else {
continue
}
road[task.location]?.let {
it.forEach {
val toCity = it.key
it.value.forEach{
val subCharge = task.subTotalCharge + it.charge
val subTotalTime = task.time + it.time
if(subCharge <= maxMoney) {
queue.push(Task(toCity, subCharge, subTotalTime))
}
}
}
}
}
map[cityCount]?.let {
println(it.minBy { it.value }!!.value)
} ?: run {
println("-1")
}
}
class Road(val charge:Int, val time:Int)
class Task(val location:Int, val subTotalCharge:Int, val time:Int)
バカらっく