用C或C++编程不使用函数方法实现顺序表，要求顺序表的定义至少包含（1）创建顺序表（2）顺序表的按位查找（3）顺序表的按位插入和按位删除（4）按位获取某个元素等功能；然后实现两个顺序表的并操作（不允许重复元素）和两个有序顺序表的合并操作（允许重复元素）。

在C或C++中，不直接使用函数来实现顺序表，我们可以手动定义结构体或类来表示列表，并提供相应的成员函数来操作。以下是一个简单的顺序表定义示例：

#include <stdbool.h>

// 定义顺序表节点
struct ListNode {
    int data;
    struct ListNode* next;
};

// 创建空顺序表
ListNode* createList() {
    return (ListNode*)malloc(sizeof(ListNode));
}

// 按位查找
bool search(int target, ListNode* head) {
    ListNode* current = head;
    while (current != NULL) {
        if (current->data == target)
            return true;
        current = current->next;
    }
    return false;
}

// 按位插入
void insert(int value, ListNode** head) {
    ListNode* newNode = createList();
    newNode->data = value;
    newNode->next = *head;
    *head = newNode;
}

// 按位删除
void remove(int value, ListNode** head) {
    ListNode* prev = NULL;
    ListNode* current = *head;
    while (current != NULL && current->data != value) {
        prev = current;
        current = current->next;
    }
    if (current != NULL) {
        if (prev == NULL)
            *head = current->next;
        else
            prev->next = current->next;
        free(current);
    }
}

// 获取元素
int get(int index, ListNode* head) {
    ListNode* current = head;
    for (int i = 0; i < index && current != NULL; i++, current = current->next)
        ;
    return current ? current->data : -1; // 如果超过范围，返回-1
}

// 并操作(不允许重复元素)
ListNode* mergeDisjointLists(ListNode* list1, ListNode* list2) {
    if (!list1 || !list2) return list1 ? list1 : list2;
    ListNode* merged = createList();
    ListNode* temp1 = list1;
    ListNode* temp2 = list2;

    while (temp1 && temp2) {
        if (temp1->data < temp2->data) {
            merged->next = temp1;
            temp1 = temp1->next;
        } else if (temp1->data > temp2->data) {
            merged->next = temp2;
            temp2 = temp2->next;
        } else { // 避免重复元素
            temp1 = temp1->next;
            temp2 = temp2->next;
        }
        merged = merged->next;
    }

    merged->next = temp1 ? temp1 : temp2;
    return merged;
}

// 合并有序列表(允许重复元素)
ListNode* mergeOrderedLists(ListNode* list1, ListNode* list2) {
    if (!list1) return list2;
    if (!list2) return list1;

    ListNode* merged = createList();
    merged->next = list1;
    ListNode* current = list1;

    while (list2 != NULL) {
        if (current->data >= list2->data) {
            merged->next = list2;
            list2 = list2->next;
        } else {
            merged->next = current;
            current = current->next;
        }
        merged = merged->next;
    }

    if (current != NULL)
        merged->next = current;

    return merged;
}