3.47 链表销毁与长度计算

链表销毁

/**
 * @brief destroyList 销毁链表
 * @param head 链表头指针
 */
void destroyList(Node *head){
    Node *cur = NULL;
    while(head != NULL){
        cur = head->next;
        free(head);
        head = cur;
    }
}

链表长度计算

/**
 * @brief listLength 计算链表长度
 * @param head 链表头指针
 * @return 链表长度
 */
int listLength(Node *head){
    int count = 0;
    head = head->next;
    while(head){
       count++;
       head = head->next;
    }
    return count;
}