数据结构实验一代码  &n…

最新推荐文章于 2022-03-28 16:14:56 发布

原创最新推荐文章于 2022-03-28 16:14:56 发布 · 398 阅读

CC 4.0 BY-SA版权

这篇博客介绍了如何使用C语言实现顺序表的基本操作，包括初始化、插入元素、删除元素和加载所有元素。代码中定义了一个结构体SqList来存储顺序表，并提供了相应的函数InitList_Sq、ListInsert_Sq、ListDelete_Sq和Load_Sq来实现这些操作。在main函数中，用户可以选择执行不同的操作，如插入、删除元素或显示整个顺序表。

#include
#include
#define OK 1
#define ERROR 0
#define LIST_INIT_SIZE 100
#define LISTINCREMENT 10
#define ElemType int

typedef struct
{
int *elem;
int length;
int listsize;
}SqList;

int InitList_Sq(SqList &L)
{
    L.elem=(ElemType *)malloc(LIST_INIT_SIZE*sizeof(ElemType));
    if(!L.elem) return ERROR;
    L.length=0;
    L.listsize=LIST_INIT_SIZE;
    return OK;
}

int Load_Sq(SqList &L)
{
// 输出顺序表中的所有元素
int i;
if(L.length==0) printf("The List is empty!");
else
{
printf("The List is: ");
for(i=0;i<L.length;i++) printf("%d ",L.elem[i]);
}
printf("\n");
return OK;
}

int ListInsert_Sq(SqList &L,int i,int e)
{
    ElemType *p,*q,*newbase;
    if(i<1||i>L.length+1) return ERROR;
    if(L.length>L.listsize)
    {
        newbase=(ElemType *)realloc(L.elem,(L.length+LISTINCREMENT)*sizeof(ElemType));
        if(!newbase) return ERROR;
        L.elem=newbase;
        L.listsize=L.listsize+LISTINCREMENT;
    }
    q=&(L.elem[i-1]);
    for(p=&(L.elem[L.length-1]);p>=q;--p)
    *(p+1)=*p;
    *q=e;
    ++L.length;
    return OK;
}

int ListDelete_Sq(SqList &L,int i, int &e)
{
    int *p,*q;
    if(i<1||i>L.length) return ERROR;
    p=&(L.elem[i-1]);
    e=*p;
    q=L.elem+L.length-1;
    for(++p;p<=q;++p)
    *(p-1)=*p;
    --L.length;
    return OK;
}

int main()
{
SqList T;
int a, i;
ElemType e, x;
if(InitList_Sq(T)==OK)    // 判断顺序表是否创建成功
{
  printf("A Sequence List Has Created.\n");
}
while(1)
{
  printf("1:Insert element\n2:Delete element\n3:Load all elements\n0:Exit\nPlease choose:\n");
  scanf("%d",&a);
  switch(a)
  {
   case 1: scanf("%d%d",&i,&x);
     if(ListInsert_Sq(T,i,x)==ERROR) printf("Insert Error!\n"); // 判断i值是否合法
     else printf("The Element %d is Successfully Inserted!\n", x);
     break;
   case 2: scanf("%d",&i);
     if(ListDelete_Sq(T,i,e)==ERROR) printf("Delete Error!\n"); // 判断i值是否合法
     else printf("The Element %d is Successfully Deleted!\n", e);
     break;
   case 3: Load_Sq(T);
     break;
   case 0: return 1;
  }
}
}