（0）单链表的创建，结点i处插入X，查找某元素、返回逻辑位置及物理指针并删除

(1)单链表的逆置.(2)清除单链表中多余的重复元素.(3)在有序的循环的带头结点单链表中插入数据X.(4)判断循环双向链表是否按值对称.(5)一元多项式的加法.-(0) The creation of a single linked list, at the junction i insert X, find an element, return to the logic of the position and physical pointer and delete (1) a single linked list inverse set. (2) Clear singly-linked list in excess repeated elements. (3 inserted) in the the orderly circulation lead node single linked list the data X. (4) judgment circular doubly linked list whether symmetry by value. (5) the addition of the polynomial.