用c语言实现线性表的链式存储实现 单链表的插入、删除、查找、求表长、置逆以及有序单链表的合并算法的实现。

在C语言中，我们可以使用结构体（struct）来表示链表节点，并通过指针（pointer）链接节点，实现线性表的链式存储。这里简单地概述一些基本操作的实现：

1. **节点结构体定义**:

typedef struct Node {
    int data;       // 数据域
    struct Node* next; // 指向下一个节点的指针
} Node;

2. **创建链表头结点**:

Node* createList() {
    return (Node*)malloc(sizeof(Node));  // 分配内存并初始化为头结点
}

3. **插入操作**(例如在头部插入):

void insertAtStart(Node** head, int value) {
    Node* newNode = (Node*)malloc(sizeof(Node));
    newNode->data = value;
    newNode->next = *head;
    *head = newNode;
}

4. **删除操作**(例如删除头部元素):

void deleteFromStart(Node** head) {
    if (*head == NULL) return;
    Node* temp = *head;
    *head = (*head)->next;
    free(temp);
}

5. **查找操作**:

Node* search(Node* head, int key) {
    Node* current = head;
    while (current != NULL && current->data != key) {
        current = current->next;
    }
    return current;
}

6. **求表长**:

int getLength(Node* head) {
    int count = 0;
    Node* temp = head;
    while (temp != NULL) {
        count++;
        temp = temp->next;
    }
    return count;
}

7. **置逆链表**(翻转链表):

void reverseList(Node** head) {
    Node* prev = NULL;
    Node* current = *head;
    Node* next暂存;
    while (current != NULL) {
        next暂存 = current->next;
        current->next = prev;
        prev = current;
        current = next暂存;
    }
    *head = prev;
}

8. **合并两个有序链表**:

Node* mergeSortedLists(Node* list1, Node* list2) {
    if (list1 == NULL) return list2;
    if (list2 == NULL) return list1;

    if (list1->data <= list2->data) {
        list1->next = mergeSortedLists(list1->next, list2);
        return list1;
    } else {
        list2->next = mergeSortedLists(list1, list2->next);
        return list2;
    }
}