数据结构实验

数据结构实验大神何在,求解
2025-03-03 18:12:21
推荐回答(2个)
回答1:

我写的顺序线性表的完整的C++代码。

核心操作函数基本依照《数据结构(C语言版)》教材。仅供参考。

#include 
#include 
#include 
#include 
#define TRUE 1
#define FALSE 0
#define OK 1
#define ERROR 0
#define INFEASIBLE -1
#define OVERFLOW -2
typedef int Status;

typedef int ElemType;


#define LIST_INIT_SIZE 80
//线性表存储空间的初始分配量
#define LISTINCREMENT 10
//线性表存储空间的分配增量
typedef struct{
ElemType *elem; //内存基址,ElemType为数据元素类型
int length; //当前表长
int listsize; //当前分配的存储空间大小,以sizeof(ElemType)为单位
}SqList; //sequential list


//构造一个空的顺序表
Status InitList_Sq( SqList &L ) {
L.elem = (ElemType*) malloc (LIST_INIT_SIZE * sizeof(ElemType));
//L.elem=new ElemType(LIST_INIT_SIZE);
if (!L.elem) exit(OVERFLOW);
L.length = 0;
L.listsize = LIST_INIT_SIZE;
return OK;   //OK是1
} // InitList_Sq

//在顺序表中查询数据元素e是否存在,返回它的位序
int LocateElem_Sq(SqList L, ElemType e) {
int i = 1; //从首元素开始比较
ElemType *p = L.elem; //p 指向首元素
while ((i <= L.length) && (e!=*p))
{  ++i; ++p;  } //继续查找
if (i <= L.length) return  i; //查找成功,返回位序
else return 0; //不成功
}

//在顺序表L的第 i 个元素之前插入新元素e,
// i 的取值范围为 1≤i≤L.length+1
Status ListInsert_Sq(SqList &L,int i,ElemType e) { 
if (i < 1 || i > L.length+1) return ERROR; //不合法
if (L.length == L.listsize) { //存储空间已满,增加分配
    ElemType *newbase = (ElemType *)realloc(L.elem, (L.listsize+LISTINCREMENT) * sizeof (ElemType) );
    if (!newbase) exit(OVERFLOW); //存储分配失败
    L.elem = newbase; //新基址
    L.listsize += LISTINCREMENT; //增加存储容量
}
//合法性检查
ElemType *q = L.elem+ i - 1; // q 指示插入位置
ElemType *p; 
for (p = L.elem + L.length - 1; p >= q;  --p)  
*(p+1) = *p; // 插入位置及之后的元素右移
*q = e; // 插入e。  L.elem[i-1]=e
++ L.length; // 表长增1
return OK;
}

//删除顺序表L的第 i 个元素,并用e返回,
//1 ≤ i ≤ L.length
Status ListDelete_Sq(SqList &L,int i,ElemType &e) {
if ((i < 1) || (i > L.length))  return ERROR; //删除位置不合法
ElemType *p = L.elem + i-1; //p为被删除元素的位置
e = *p; // 被删除元素L.elem[i-1]赋给 e
ElemType *q = L.elem + L.length-1; //表尾元素的位置
for (++p; p <= q; ++p)
*(p-1) = *p; //被删除元素之后的元素左移
--L.length; //表长减1
return OK;




//将顺序表L销毁
void DestroyList_Sq(SqList &L) {
free(L.elem);



//将顺序表L重置为空表 
void ClearList_Sq(SqList &L) {
L.length = 0;


//若顺序表L为空表,则返回TRUE,否则返回FALSE
Status ListEmpty_Sq(SqList L) {
if(L.length)  return FALSE;
else  return TRUE;
}

//返回顺序表L中数据元素的个数
int ListLength_Sq(SqList L) {
return L.length;
}

//用e返回顺序表L中第i个数据元素的值 
Status GetElem_Sq(SqList L, int i, ElemType &e) {
if (i < 1 || i > L.length) return ERROR; //不合法
ElemType *p = L.elem + i-1;
e = *p;
return OK;


//用pre_e返回顺序表L中cur_e的前驱
Status PriorElem_Sq(SqList L, ElemType cur_e, ElemType &pre_e) {
int i = LocateElem_Sq(L,cur_e);
if(i==0 || i==1) return ERROR;
GetElem_Sq(L, i-1, pre_e);
return OK;


//用next_e返回顺序表L中cur_e的后继 
Status NextElem_Sq(SqList L, ElemType cur_e, ElemType &next_e) {
int i = LocateElem_Sq(L,cur_e);
if(i==0 || i==L.length) return ERROR;
GetElem_Sq(L, i+1, next_e);
return OK;


//依次对顺序表L的每个数据元素调用函数visit()
void ListTraverse_Sq(SqList L, Status visit(int i, ElemType e)) {
int i = 1;
ElemType *p = L.elem;
while (i <= L.length) {
visit(i,*p);
++i; ++p;
}



//遍历_输出
Status print(int i, ElemType e){
cout<<"第"<


main()
{
SqList L; 
int choice,reply;
ElemType e,e2;
int i;

while(1){
cout<<"对顺序表L的操作:";
cout<<"1.初始化 2.插入 3.删除 4.遍历 5.取值 6.查找 7.统计个数"< cout<<"                 8.是否空表 9.前驱 10.后继 11.清空 12.销毁   0.退出"< cin>>choice;

switch(choice){
case 1://构造一个空的顺序表
reply = InitList_Sq(L);
if(reply == 0) cout<<"                                        失败!"< break;
case 2://在顺序表L的第 i 个元素之前插入新元素e( i 的取值范围为 1≤i≤L.length+1
cout<<"请输入新数据元素的值:"; cin>>e;
cout<<"请输入插入到表中的位序:"; cin>>i;
reply = ListInsert_Sq(L, i, e);
if(reply == 0) cout<<"                                        失败!"< break;
case 3://删除顺序表L的第 i 个元素,并用e返回(1 ≤ i ≤ L.length
cout<<"请输入欲删除的数据在表中的位序:"; cin>>i;
reply = ListDelete_Sq(L, i, e);
if(reply == 0) cout<<"                                        失败!"< else
cout<<"您删除的数据为:"< break;
case 4://依次对顺序表L的每个数据元素调用函数visit()
ListTraverse_Sq(L, print);
break;
case 5://用e返回顺序表L中第i个数据元素的值
cout<<"请输入位序:"; cin>>i;
reply = GetElem_Sq(L, i, e);
if(reply == 0) cout<<"                                        失败!"< else
cout<<"表中第"< break;
case 6://在顺序表中查询数据元素e是否存在,返回它的位序
cout<<"请输入欲查找的数据元素的值:"; cin>>e;
i = LocateElem_Sq(L, e);
if(i != 0) cout<<"该数据在表中的位序为:"< else cout<<"该数据在表中并不存在。"< break;
case 7://返回顺序表L中数据元素的个数
i = ListLength_Sq(L);
cout<<"表中有"< break;
case 8://若顺序表L为空表,则返回TRUE,否则返回FALSE
reply = ListEmpty_Sq(L);
if(reply == TRUE) cout<<"该表为空表。"< else  cout<<"该表不是空表。"< break;
case 9://用pre_e返回顺序表L中cur_e的前驱
cout<<"请输入欲查找的数据元素的值:"; cin>>e;
reply = PriorElem_Sq(L, e, e2);
if(reply == 0) cout<<"                                        失败!"< else
cout<<"该数据元素的前驱元素的值为:"< break;
case 10://用next_e返回顺序表L中cur_e的后继 
cout<<"请输入欲查找的数据元素的值:"; cin>>e;
reply = NextElem_Sq(L, e, e2);
if(reply == 0) cout<<"                                        失败!"< else
cout<<"该数据元素的后继元素的值为:"< break;
case 11://将顺序表L重置为空表 
ClearList_Sq(L);
break;
case 12://将顺序表L销毁
DestroyList_Sq(L);
break;
case 0:
exit(0); 
default:
break;
}
cout< }
}

回答2:

这个我会,可以帮你写!

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