将上述过程用c语言代码实现

首先，我们分别提供顺序存储结构和链式存储结构的C语言代码实现：

### 顺序存储结构（数组）

#include <stdio.h>
#include <stdlib.h>

#define MAX_SEQ_LENGTH 1000

void merge_sorted_arrays(int arr1[], int m1, int arr2[], int m2, int output[]) {
    int i = 0, j = 0, k = 0;
    
    while (i < m1 && j < m2) {
        if (arr1[i] <= arr2[j]) {
            output[k++] = arr1[i++];
        } else {
            output[k++] = arr2[j++];
        }
    }

    // 将未遍历完的部分复制到输出数组
    while (i < m1) {
        output[k++] = arr1[i++];
    }
    while (j < m2) {
        output[k++] = arr2[j++];
    }
}

int main() {
    int n, m1, m2;
    scanf("%d", &n);
    for (int case_num = 1; case_num <= n; ++case_num) {
        scanf("%d %d", &m1, arr1); // 假设arr1[]已预先声明并读取
        scanf("%d %d", &m2, arr2); // 假设arr2[]已预先声明并读取
        
        int merged[length]; // length = m1 + m2
        merge_sorted_arrays(arr1, m1, arr2, m2, merged);

        printf("Case #%d: %d\n", case_num, m1 + m2);
        for (int i = 0; i < m1 + m2; ++i) {
            printf("%d ", merged[i]);
        }
        printf("\n");
    }
    return 0;
}

### 链式存储结构（双向链表）

由于链表的特性，我们需要定义`Node`结构和一些辅助函数。这里简化演示关键部分：

#include <stdio.h>
#include <stdlib.h>

typedef struct Node {
    int data;
    struct Node* next;
    struct Node* prev;
} Node;

// 插入节点到链表的适当位置保持排序
void insert_sorted(Node** head, int value) {
    Node* newNode = (Node*)malloc(sizeof(Node));
    newNode->data = value;
    newNode->next = *head;
    newNode->prev = NULL;

    if (*head != NULL && value < (*head)->data) {
        newNode->next->prev = newNode;
        *head = newNode;
    } else {
        Node* temp = *head;
        while (temp->next != NULL && temp->next->data < value) {
            temp = temp->next;
        }
        newNode->prev = temp;
        newNode->next = temp->next;
        if (temp->next != NULL)
            temp->next->prev = newNode;
        else
            *head = newNode;
    }
}

void merge_sorted_lists(Node** head1, Node** head2, Node** outputHead) {
    Node* current1 = *head1;
    Node* current2 = *head2;

    while (current1 != NULL && current2 != NULL) {
        if (current1->data <= current2->data) {
            insert_sorted(outputHead, current1->data);
            current1 = current1->next;
        } else {
            insert_sorted(outputHead, current2->data);
            current2 = current2->next;
        }
    }

    // 将剩余的链表添加到输出链表
    while (current1 != NULL) {
        insert_sorted(outputHead, current1->data);
        current1 = current1->next;
    }
    while (current2 != NULL) {
        insert_sorted(outputHead, current2->data);
        current2 = current2->next;
    }
}

int main() {
    // ... (类似顺序存储结构的主函数实现)
    Node* list1_head = ...; // 初始化第一个链表
    Node* list2_head = ...; // 初始化第二个链表
    Node* outputHead = NULL;

    merge_sorted_lists(&list1_head, &list2_head, &outputHead);

    // ... (类似顺序存储结构的输出部分实现)
}

请记住，这里的代码片段是简化版，实际项目中需要处理边界条件、错误检查以及用户输入文件的读取等细节。