陈越、何钦铭数据结构作业6:Reversing Linked List链表翻转

GivenaconstantKandasinglylinkedlistL,youaresupposedtoreversethelinksofeveryKelementsonL.Forexample,givenLbeing1→2→3→4→5→6,ifK=3,thenyoumustoutput3→2→1→6→5→4;ifK=4,youmustoutput4→3→2→1→5→6.