数据结构总结 第二章 线性表 抽象数据类型的具体实现

#include<stdio.h>
#include<stdlib.h>
#include<iostream>
#define MAXSIZE 1000
#define ERROR 0
#define OK 1
using namespace std;
typedef int Status;
typedef int ElemType;
/////////////线性表定义(顺序表)////////////////////////
typedef struct
{
    ElemType *elem;
    int length;
}SqList;
/////////////线性表定义(单链表)////////////////////////
typedef struct LNode
{
    ElemType data;
    struct LNode *next;
}LNode,*LinkList;
/////////////线性表初始化////////////////////////
Status InitList(SqList &L)
{
    L.elem = new ElemType[MAXSIZE];
    if(!L.elem) exit(ERROR);
    L.length = 0;
    return OK;
}
Status InitList(LinkList &L)
{
    L = new LNode;
    L->next = NULL;
    return OK;
}
/////////////线性表销毁//////////////////////////
Status DestoryList(SqList &L)
{
    delete L.elem;
    L.elem = NULL;
    L.length = 0;
    return OK;
}
Status DestoryList(LinkList &L)
{
    LinkList p;
    while(L)
    {
        p = L;
        L = L->next;
        delete p;
    }
    return OK;
}
/////////////线性表清空//////////////////////////
Status ClearList(SqList &L)
{
    L.length = 0;
    return OK;
}
Status ClearList(LinkList &L)
{
    LinkList p;
    L = L->next;
    while(L)
    {
        p = L;
        L = L->next;
        delete p;
    }
    L->next = NULL;
    return OK;
}
/////////////线性表是否为空//////////////////////
Status ListEmpty(SqList L)
{
    if(L.length == 0)
        return OK;
    return ERROR;
}
Status ListEmpty(LinkList L)
{
    if(L->next == NULL)
        return OK;
    return ERROR;
}
/////////////线性表长度//////////////////////////
Status ListLength(SqList L)
{
    return L.length;
}
Status ListLength(LinkList L)
{
    LinkList p;
    int sum = 0;
    p = L->next;
    while(p)
    {
        p = p->next;
        sum++;
    }
    return sum;
}
/////////////获取线性表元素值////////////////////
Status GetElem(SqList L,int i,ElemType &e)
{
    if(i<1 || i>L.length)   return ERROR;
    e = L.elem[i-1];
    return OK;
}
Status GetElem(LinkList L,int i,ElemType &e)
{
    LinkList p;
    p = L->next;
    int j = 1;
    while(p&&j<i)
    {
        p=p->next;
        ++j;
    }
    if(!p||j>i) return ERROR;
    e = p->data;
    return OK;
}
/////////////获取线性表元素位置//////////////////
int LocateElem(SqList L,ElemType e)
{
    for(int i=0;i<L.length;i++)
        if(L.elem[i]==e)    return i+1;
    return ERROR;
}
LNode *LocateElem(LinkList L,ElemType e)
{
    LinkList p;
    p = L->next;
    while(p && p->data!=e)
        p = p->next;
    return p;
}
/////////////返回线性表前驱//////////////////////
Status PriorElem(SqList L,ElemType cur_e,ElemType &pre_e)
{
    int i = 0;
    while(L.elem[i]!=cur_e && i<L.length)
        i++;
    if(i == 0 || i == L.length)    return ERROR;
        L.elem[i-1] = pre_e;
    return OK;
}
Status PriorElem(LinkList L,ElemType cur_e,ElemType &pre_e)
{
    LinkList p,q;
    p = L->next;
    q = L;
    while(p->next)
    {
        q = p->next;
        if(q->data = cur_e)
        {
            pre_e = q->data;
            return OK;
        }
        p = q;
    }
    return ERROR;
}
/////////////返回线性表后继//////////////////////
Status NextElem(SqList L,ElemType cur_e,ElemType &pre_e)
{
    int i = 0;
    while(L.elem[i]!=cur_e && i<L.length)
        i++;
    if(i == 0 || i == L.length)    return ERROR;
        pre_e = L.elem[i-1];
    return OK;
}
Status NextElem(LinkList L,ElemType cur_e,ElemType &next_e)
{
    LinkList p;
    p=L->next;
    while(p->next)
    {
        if(p->data == cur_e)
        {
            next_e = p->next->data;
            return OK;
        }
        p = p->next;
    }
    return ERROR;
}
/////////////线性表插入//////////////////////////
Status ListInsert(SqList &L,int i,ElemType &e)
{
    if((i<1)||(i>L.length)) return ERROR;   //如果插入元素不在表的范围之内，插入失败
    if(L.length == MAXSIZE) return ERROR;   //如果顺序表已满，插入失败
    for(int j = L.length;j >= i-1;j--)      //从第i位开始，每个元素依次向后移动一个单位
    {
        L.elem[j+1] = L.elem[j];
    }
    L.elem[i-1] = e;    //将第i位元素数据域设置为e
    ++L.length;         //表长+1
    return OK;
}
Status ListInsert(LinkList &L,int i,ElemType &e)
{
    LinkList p,s;
    int j=0;
    p=L;
    while(p && (j<i-1)) //查找第i-1个结点，使p指向该结点
    {
        p = p->next;
        ++j;
    }
    if(!p || j>i-1) return ERROR;   //i>n+1或者i<1，插入失败
    s = new LNode;  //为新结点分配内存
    s->data = e;    //新结点数据域置为e
    s->next = p->next;  //新结点的后继设置为p的后继
    p->next = s;    //p的后继设置为s
    return OK;
}
/////////////线性表删除//////////////////////////
Status ListDelete(SqList &L,int i)
{
    if((i<1) || (i>L.length))   return ERROR;   //如果删除元素不在表的范围之内，删除失败
    for(int j = i;j <= L.length;j++)
        L.elem[j-1] = L.elem[j];    //被删除元素之后的元素前移
    --L.length;  //表长-1
    return OK;
}
Status ListDelete(LinkList &L,int i)
{
    LinkList p,q;int j = 0;
    p = L;
    while((p->next) && (j<i-1)) //查找第i-1个结点，p指向该结点
    {
        p = p->next;
        ++j;
    }
    if(!(p->next) || (j>i-1))   return ERROR;   //当i>n或i<1时，删除位置不合适
    q = p->next;    //临时保存被删结点的位置以备释放
    p->next = q->next;  //改变删除结点前驱结点的指针域
    delete q;       //释放删除结点的空间
    return OK;
}
/////////////线性表元素遍历//////////////////////
Status TraverseList(SqList L)
{
    for(int i=0;i<L.length;i++)
    {

    }
    return OK;
}
Status TraverseList(LinkList L)
{
    while(L->next)
    {
        L = L->next;
        cout<<L->data<<' ';
    }
    return OK;
}
/////////////创建单链表(头插法)(带头节点)//////////////////////
void CreateList_H(LinkList &L,int n)
{
    LinkList p;
    L = new LNode;
    L->next = NULL;
    for(int i = 0;i < n;i++)
    {
        p = new LNode;
        cin>>p->data;
        p->next = L->next;
        L->next = p;
    }
}
/////////////创建单链表(头插法)(不带头节点)//////////////////////
void CreateList_NH(LinkList &L,int n)
{
    LinkList p;
    L->next = NULL;
    for(int i = 0;i < n;i++)
    {
        p = new LNode;
        cin>>p->data;
        p->next = L->next;
        L->next = p;
    }
}
/////////////创建单链表(尾插法)(带头节点)//////////////////////
void CreateList_R(LinkList &L,int n)
{
    LinkList p,r;
    L = new LNode;
    L->next = NULL;
    r=L;
    for(int i = 0;i < n;i++)
    {
        p = new LNode;
        cin>> p->data;
        p->next = NULL;
        r->next = p;
        r = p;
    }
}
/////////////创建单链表(尾插法)(不带头节点)//////////////////////
void CreateList_NR(LinkList &L,int n)
{
    LinkList p,r;
    L->next = NULL;
    r=L;
    for(int i = 0;i < n;i++)
    {
        p = new LNode;
        cin>> p->data;
        p->next = NULL;
        r->next = p;
        r = p;
    }
}
/////////////双向链表定义//////////////////////
typedef struct DuLNode
{
    ElemType data;          //数据域
    struct DuLNode *prior;  //指向直接前驱
    struct DuLNode *next;   //指向直接后继
}DuLNode,*DuLinkList;
/////////////双向链表插入//////////////////////
Status ListInsert_DuL(DuLinkList &L,int i,ElemType e)
{
    DuLinkList p,s;
    int j=0;
    p=L;
    while(p && (j<i-1)) //查找第i-1个结点，使p指向该结点
    {
        p = p->next;
        ++j;
    }
    if(!p || j>i-1) return ERROR;   //i>n+1或者i<1，插入失败
    s = new DuLNode;
    s->data = e;            //s的数据域设置为e
    s->prior = p->prior;    //s的前驱设置为p的前驱
    p->prior->next = s;     //p的前驱元素的后继设置为s
    s->next = p;            //s的后继设置为p
    p->prior = s;           //p的前驱设置为s
    return OK;
}
/////////////双向链表删除//////////////////////
Status ListDelete_DuL(DuLinkList &L,int i)
{
    DuLinkList p,q;int j = 0;
    p = L;
    while((p->next) && (j<i-1)) //查找第i-1个结点，p指向该结点
    {
        p = p->next;
        ++j;
    }
    if(!(p->next) || (j>i-1))   return ERROR;   //当i>n或i<1时，删除位置不合适
    p->prior->next = p->next;   //p的前驱元素的后继设置为p的后继
    p->next->prior = p->prior;  //p的后继元素的前驱设置为p的前驱
    delete p;      //删除元素p
    return OK;
}
/////////////线性表的合并(顺序表)(无序表)//////////////////////
void MergeList(SqList &LA,SqList LB)
{
    int m = LA.length;
    int n = LB.length;
    ElemType e;
    for(int i = 1;i<=n;i++)
    {
        GetElem(LB,i,e);
        if(!LocateElem(LA,e))
            ListInsert(LA,++m,e);
    }
}
/////////////线性表的合并(顺序表)(有序表)//////////////////////
void MergeList_Sq(SqList LA,SqList LB,SqList &LC)
{   //将AB两表中的有序数据统一有序放到一个C表中
    LC.length = LB.length+LA.length;//新表的长度等于两表的长度和
    LC.elem  = new ElemType[LC.length];//为新表申请空间
    ElemType *pa,*pb,*pc,*pa_last,*pb_last;//定位三个表中各个结点的位置
    pc = LC.elem;
    pa = LA.elem;
    pb = LB.elem;
    pa_last = LA.elem + LA.length-1;
    pb_last = LB.elem + LB.length-1;
    while((pa<pa_last)&&(pb<pb_last))//依次摘取两表中数值较小的结点放到c表的最后
    {
        if(*pa<=*pb)    *pc++ = *pa++;//如果当前A表的数据小于B表的数据，先取A表数据
        else    *pc++ = *pb++;      //否则取B表的数据
    }
    while(pa <= pa_last)  *pc++ = *pa++;//如果A表的数据还没有取完，继续取
    while(pb <= pb_last)  *pc++ = *pb++;//如果B表的数据还没有取完，继续取
}
/////////////线性表的合并(链式表)//////////////////////
void MergeList_L(LinkList &LA,LinkList &LB,LinkList &LC)
{
    LinkList pa,pb,pc;
    pa = LA->next;
    pb = LB->next;
    LC = LA;
    pc = LC;
    while(pa && pb)
    {
        if(pa->next <= pb->next)
        {
            pc->next = pa;
            pc = pa;
            pa = pa->next;
        }
        else
        {
            pc->next = pb;
            pc = pb;
            pb = pb->next;
        }
    }
    pc->next = pa? pa:pb;
    delete LB;
}