----We __________ an English exam. I’m not good at English. What should I do?----You can ask your teacher for help
阅读下面算法。说明该算法的功能。Typedef char DataType;typedef struct node{DataType data;struct node *next;}ListNode;typedef ListNode *Linklist;Linklist what(Linklist h){/*h是无头结点的单链表的头指针*/{if(h&&h->next){q=h;h=h->next;p=h;while(p->next)p=p->next;p->next=q;q->next=NULL;h=q;}return(h);}