Scala中怎么實(shí)現(xiàn)冒泡排序和歸并排序,相信很多沒(méi)有經(jīng)驗(yàn)的人對(duì)此束手無(wú)策,為此本文總結(jié)了問(wèn)題出現(xiàn)的原因和解決方法,通過(guò)這篇文章希望你能解決這個(gè)問(wèn)題。
創(chuàng)新互聯(lián)堅(jiān)持“要么做到,要么別承諾”的工作理念,服務(wù)領(lǐng)域包括:網(wǎng)站建設(shè)、網(wǎng)站設(shè)計(jì)、企業(yè)官網(wǎng)、英文網(wǎng)站、手機(jī)端網(wǎng)站、網(wǎng)站推廣等服務(wù),滿足客戶于互聯(lián)網(wǎng)時(shí)代的西烏珠穆沁網(wǎng)站設(shè)計(jì)、移動(dòng)媒體設(shè)計(jì)的需求,幫助企業(yè)找到有效的互聯(lián)網(wǎng)解決方案。努力成為您成熟可靠的網(wǎng)絡(luò)建設(shè)合作伙伴!1、冒泡排序
def sort(list: List[Int]): List[Int] = list match { case List() => List() case head :: tail => compute(head, sort(tail)) } def compute(data: Int, dataSet: List[Int]): List[Int] = dataSet match { case List() => List(data) case head :: tail => if (data <= head) data :: dataSet else head :: compute(data, tail) }def main(args: Array[String]) { val list = List(3, 12, 43, 23, 7, 1, 2, 0) println(sort(list)) }
2、歸并排序
def mergedSort[T](less: (T, T) => Boolean)(list: List[T]): List[T] = { def merged(xList: List[T], yList: List[T]): List[T] = { (xList, yList) match { case (Nil, _) => yList case (_, Nil) => xList case (x :: xTail, y :: yTail) => { if (less(x, y)) x :: merged(xTail, yList) else y :: merged(xList, yTail) } } } val n = list.length / 2 if (n == 0) list else { val (x, y) = list splitAt n merged(mergedSort(less)(x), mergedSort(less)(y)) } }def main(args: Array[String]) { val list = List(3, 12, 43, 23, 7, 1, 2, 0) println(mergedSort((x: Int, y: Int) => x < y)(list)) }
3、快速排序
def quickSort(list: List[Int]): List[Int] = { list match { case Nil => Nil case List() => List() case head :: tail => val (left, right) = tail.partition(_ < head) quickSort(left) ::: head :: quickSort(right) } }def main(args: Array[String]) { val list = List(3, 12, 43, 23, 7, 1, 2, 0) println(quickSort(list)) }
看完上述內(nèi)容,你們掌握Scala中怎么實(shí)現(xiàn)冒泡排序和歸并排序的方法了嗎?如果還想學(xué)到更多技能或想了解更多相關(guān)內(nèi)容,歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道,感謝各位的閱讀!