阅读下列函数说明和C代码,将应填入(n)处的字句写在对应栏内。[说明] 设有一个带表头结点的双向循环链表L,每个结点有4个数据成员:指向前驱结点的指针prior、指向后继结点的指针next、存放数据的成员data和访问频度freq。所有结点的freq初始时都为0。每当在链表上进行一次L.Locate(x)操作时,令元素值x的结点的访问...
aThis function, AI, would be invoked by the bottom-up component of the parser after the A and B symbols have been recognized. Prior to this point, a rule ambiguity would have existed. A1 calls the bottom-up component of the parser to match the C, D and E symbols. They must necessari...