严蔚敏数据结构线性表操作

代码来源自网络:https://www.cnblogs.com/kangjianwei101/p/5223723.html，归原作者所有。此处做一个记录。

test.c

#include "SequenceList.h"
//https://www.cnblogs.com/kangjianwei101/p/5223723.html


Status compare(LPElemType elem, LPElemType other);    //元素比较函数，other > elem 返回 TRUE 否则FALSE
void PrintElem(LPElemType elem);

void main(void)
{
    SequenceList list;
    int i,ERR_CODE;
    LPElemType elem;

    printf("函数初始化测试 InitList...\n");
    {
        printf("初始化线性表...\n");
        ERR_CODE = InitList(&list);
        if (ERR_CODE != OK) {
            printf("初始化失败\n");
        }
        else
        {
            printf("线性表容量:%d,现有元素个数:%d\n", list.capacity, list.count);
        }
        printf("\n\n");
    }
    PressEnter();

    printf("函数ListEmpty判空测试...\n");
    {
        if (ListEmpty(list))
        {
            printf("线性表为空!!!\n");
        }
        else
        {
            printf("非空线性表!\n");
        }
        printf("\n\n");
    }
    PressEnter();
    
    printf("函数ListInsert测试...\n");
    {
        for (i = 1; i < 6; i++)
        {
            printf("在线性表位序 %d 插入\"%d\"...\n", i, 2 * i);
            ListInsert(&list, i, 2 * i);
        }
        printf("\n\n");
    }
    PressEnter();

    printf("函数ListTraverse测试...\n");
    {
        printf("list中的元素为: list = ");
        ListTraverse(list,PrintElem);
        printf("\n\n");
    }
    PressEnter();

    printf("函数ListLength测试...\n");
    {

        i = ListLength(list);
        printf("list的长度为 %d\n", i);
        printf("\n\n");
    }
    PressEnter();

    printf("函数ListDelete测试...\n");
    {

        ListDelete(&list,6,&elem);
        printf("删除 list 中第 6 个元素 \"%d\"\n", elem);
        printf("list 中的元素为：list = ");
        ListTraverse(list, PrintElem);
        printf("\n\n");
    }
    PressEnter();

    printf("函数GetElem测试...\n");
    {
        GetElem(list,4 ,&elem);
        printf("list 中第 4个位置的元素为 \"%d\" \n", elem);
        printf("\n\n");
    }
    PressEnter();

    printf("函数LocateElem测试...\n");
    {
        i =  LocateElem(list, 7 , compare);
        printf("list 中第一个元素值大于\"7\"的元素的位置为 %d\n", i);
        printf("\n\n");
    }
    PressEnter();

    printf("函数PriorElem测试...\n");
    {
        PriorElem(list , 6 , &elem);
        printf("元素 \"6\"的前驱为\"%d\"\n", elem);
        printf("\n\n");
    }
    PressEnter();

    printf("函数NextElem测试...\n");
    {
        NextElem(list, 6, &elem);
        printf("元素 \"6\" 的后继为 \"%d\"\n", elem);
        printf("\n\n");        
    }
    PressEnter();

    printf("函数ClearList测试...\n");
    {
        printf("清空list之前:");
        if(ListEmpty(list))
        {
            printf("list为空!\n");
        }else
        {
            printf("list不为空!\n");
        }
        ClearList(&list);
        printf("清空 list 后:");
        if(ListEmpty(list))
        {
            printf("list为空!\n");
        }else{
            printf("list不为空!\n");
        }
        printf("\n\n");
    }
    PressEnter();

    printf("函数DestroyList测试...\n");
    {
        printf("销毁list前:\n");
        if(list.elem)
        {
            printf("list存在!\n");
            DestroyList(&list);
            printf("销毁list后:");
            if(list.elem)
            {
                printf("list存在\n");
            }else
            {
                printf("list不存在\n");
            }
        }else
        {
            printf("list不存在!\n");
        }
    }
    PressEnter();
}


Status compare(LPElemType elem, LPElemType other)
{
    return other > elem ? TRUE : FALSE;
}

void PrintElem(LPElemType elem)
{
    printf("%d ", elem);
}

 SequenceList.h

//Capacity 容器容量
//Count 当前实际个数
#ifndef SEQUENCELIST_H
#define SEQUENCELIST_H

#include "stdio.h"
#include "stdlib.h"            //提供malloc,realloc,free,exit原型 zmalloc
#include "Status.h"

/* 宏定义 */
#define LIST_INIT_SIZE    4    //顺序表存储空间的初始分配量
#define LIST_INCREMENT    2    //顺序表存储空间的分配增量


/* 顺序表类型定义 */
#ifndef LELEMTYPE_SQ
#define LELEMTYPE_SQ
typedef int LPElemType;
#endif

typedef struct
{
    LPElemType *elem;        //存储空间基址(指针首地址)
    int count;                //当前顺序表长度 count 
    int    capacity;            //当前分配的存储容量 capacity
} SequenceList,tag_List;

//初始化空序列表
Status InitList(SequenceList *list);

//清空顺序表
void ClearList(SequenceList *list);

//销毁顺序表
void DestroyList(SequenceList *list);

//判断顺序表是否为空
int ListEmpty(SequenceList list);

//返回顺序表的元素个数
int ListLength(SequenceList list);

//返回顺序表中第i个元素
Status GetElem(SequenceList list, int i, LPElemType *elem);

//返回中首个与e满足Compare关系的元素位序
int LocateElem(SequenceList list, LPElemType elem, Status(Compare)(LPElemType, LPElemType));

//返回cur_elem的前驱
Status PriorElem(SequenceList list, LPElemType cur_elem, LPElemType *pre_elem);

//返回cur_elem的后继

Status NextElem(SequenceList list, LPElemType cur_elem, LPElemType *next_elem);

//在顺序表的第i个位置插入e
Status ListInsert(SequenceList *list, int i, LPElemType elem);

//删除顺序表上第i个位置的元素，并用e返回
Status ListDelete(SequenceList *list, int i, LPElemType *elem);

//用visit函数访问顺序表
Status ListTraverse(SequenceList list, void(Visit)(LPElemType));

//union

//Merge


#endif

SequenceList.c

#ifndef SEQUENCELIST_C
#define SEQUENCELIST_C

#include "SequenceList.h"

Status InitList(SequenceList *list)
{
    list->elem = (LPElemType*)malloc(LIST_INIT_SIZE * sizeof(LPElemType));
    if (!list->elem)
    {
        exit(OVERFLOW);                //分配内存失败
    }

    list->count = 0;                    //初始化顺序表长度为0
    list->capacity = LIST_INIT_SIZE;    //顺序表初始内存分配量
    return OK;                        //初始化成功
}

void ClearList(SequenceList *list)
{
    list->count = 0;
}

void DestroyList(SequenceList *list)
{
    free(list->elem);
    list->elem =        NULL;
    list->count =        0;    //释放内存后置空指针
    list->capacity =    0;
}

Status ListEmpty(SequenceList list)
{
    return list.count == 0 ? TRUE : FALSE;
}

int ListLength(SequenceList list)
{
    return list.count;
}

Status GetElem(SequenceList list, int i, LPElemType *elem)
{
    
    if (i < 1 || i > list.count/*如果检索的索引超过实际元素的索引长度*/)
    {
        return ERROR;            //i值不合法
    }
    else
    {
        *elem = list.elem[i - 1];
    }
    return OK;
}

int LocateElem(SequenceList list, LPElemType elem, Status(Compare)(LPElemType, LPElemType))
{
    int i = 1;                //i的初值为第一个元素的位序

    while ( i < list.count && !Compare(elem, list.elem[i -1]) )
    {
        ++i;
    }

    if (i <= list.count)
    {
        return i;
    }
    else
    {
        return 0;
    }
}

Status PriorElem(SequenceList list, LPElemType cur_elem, LPElemType *pre_elem)
{
    int i = 1;
    
    if (list.elem[0] != cur_elem)            //第一个节点无前驱
    {
        while ( i < list.count && list.elem[i] != cur_elem)
        {
            ++i;
        }

        if (i < list.count)
        {
            *pre_elem = list.elem[i - 1];
            return OK;
        }
    }
    return ERROR;
}

Status NextElem(SequenceList list, LPElemType cur_elem, LPElemType *next_elem)
{
    int i = 0;

    while (i < list.count && list.elem[i] != cur_elem)
    {
        ++i;
    }

    if (i < list.count - 1)
    {
        *next_elem = list.elem[i + 1];
        return OK;
    }

    return ERROR;
}

Status ListInsert(SequenceList *list, int i, LPElemType elem)
{
    LPElemType *newbase;
    LPElemType *p, *q;

    if (i < 1 || i > list->count + 1)
    {
        return ERROR;
    }

    if (list->count > list->capacity)        //存储空间以满，需要扩容
    {
        newbase = (LPElemType*)realloc(list->elem, (list->capacity + LIST_INCREMENT) * sizeof(LPElemType));

        if (!newbase)
        {
            exit(OVERFLOW);
        }

        list->elem = newbase;
        list->capacity += LIST_INCREMENT;
    }

    q = &(list->elem[i - 1]);    //q为插入位置

    for (p = &(list->elem[list->count - 1]); p >= q; --p)
    {
        *(p + 1) = *p;                //插入位置及之后的元素右移
    }

    *q = elem;
    list->count++;
    
    return OK;
}


Status ListDelete(SequenceList *list, int i, LPElemType *elem)
{
    LPElemType *p = NULL, *q = NULL;

    if (i < 1 || i > list->count)
    {
        return ERROR;
    }

    *p = list->elem[i - 1];        //p为被删除元素的位置
    *elem = *p;
    q = (*list).elem + (*list).count - 1;    //表示元素的位置

    for (++p; p <= q; ++p)
    {
        *(p - 1) = *p;            //被删除元之后的元素左移
    }

    list->count--;                //表长减去1

    return OK;
}

Status ListTraverse(SequenceList list, void(Visit)(LPElemType))
{
    int i;

    for (i = 0; i < list.count; i++)
    {
        Visit(list.elem[i]);
    }
    return OK;
}

#endif

Status.h

#ifndef STATUS_H
#define STATUS_H

/*状态码*/
#define TRUE        1        //真
#define FALSE        0        //假
#define YES            1        //是
#define NO            0        //否
#define OK            1        //通过
#define ERROR        0        //错误
#define SUCCESS        1        //成功
#define UNSUCCESS    0        //失败
#define INFEASIBLE    -1        //不可行

#ifndef _MATH_H_            //系统中已有此状态码定义，要避免冲突
#define OVERFLOW    -2        //堆栈上溢
#define UNDERFLOW    -3        //堆栈下溢
#endif

#ifndef NULL
#define NULL ((void*)0)
#endif

/* 状态码失败类型 */
typedef int Status;

/* 宏函数 */
//函数暂停一段时间
#define Wait(x)\
{\
    double _Loop_Num_;\
    for(_Loop_Num_=0.01; _Loop_Num_<=100000.0*x; _Loop_Num_+=0.01)\
        ;\
}//设立一个空循环

#define PressEnter()\
{\
    fflush(stdin);\
    printf("Press Enter...");\
    getchar();\
    fflush(stdin);\
}

#endif

vc++6.0编译运行效果