c语言做一个线性表la,数据结构算法C语言实现（一）---2.3线性表的顺序表示和实现...

//2_2.cpp/**

author:zhaoyu

email:[email protected]

date:2016-6-4

note:realize my textbook <>*/#include"head.h"

//----线性表的动态分配顺序存储结构----

#define LIST_INIT_SIZE 100//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

/**

My Code

to make the paragram run correctlly*/

#define ElemType inttypedefstruct{

ElemType*elem;//存储空间基址

int length;//当前长度

int listsize;//当前分配的存容量(以sizeof(ElemType)位单位)

}SqList;intcompare(ElemType a, ElemType b)

{return a==b?1:0;

}/**

algorithm 2.3

page 23*/Status InitList_Sq(SqList&L)

{//构造一个空的线性表

L.elem = (ElemType *)malloc(LIST_INIT_SIZE * sizeof(ElemType));if (!L.elem)

{

exit(OVERFLOW);

}

L.length= 0;

L.listsize=LIST_INIT_SIZE;returnOK;

}//InitList_Sq

/**

algorithm 2.4*/Status ListInsert_Sq(SqList&L, inti, ElemType e)

{//在顺序线性表L中第i个位置之前插入新的元素e//i的合法为[1, ListLength_Sq(L)+1]

if (i < 1 || i > L.length + 1)

{return ERROR;//i值不合法

}if (L.length >=L.listsize)

{//当前存储空间已满，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

}

ElemType*q = &(L.elem[i-1]);//q为插入位置

for (ElemType *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;++L.length;returnOK;

}//ListInsert_Sq/**

algorithm 2.5*/Status ListDelete_Sq(SqList&L, int i, ElemType &e)

{//在顺序线性表中删除第i个元素，并用e返回其值//i的合法值为[1, ListLength_Sq(L)]

if ((i < 1) || (i >L.length))

{return ERROR;//i为不合法值

}

ElemType*p = &(L.elem[i-1]);//p为被删除元素的位置

e = *p;//被删除的元素赋值给e

ElemType *q = L.elem + L.length - 1;//表位元素的位置

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

returnOK;

}//ListDelete_Sq/**

algorithm 2.6*/

int LocateElem_Sq(SqList L, ElemType e, Status(*compare)(ElemType, ElemType))

{//在顺序线性表L中查找第1个值与e满足compare()的元素位序//若找到返回其在L中的位序，否则返回0

int i = 1;//i的初值为第一个元素的位序

ElemType *p = L.elem;//p为第一个元素的存储位置

while (i <= L.length && !(*compare)(*p++, e))

{++i;

}if (i <=L.length)

{returni;

}else{return 0;

}

}//LocateElem_Sq/**

algorithm 2.7*/

void MergeList_Sq(SqList La, SqList Lb, SqList &Lc)

{//已知顺序线性表La和Lb的元素按值非递减排列//归并La和Lb得到新的顺序线性表Lc,Lc的元素也按值非递减排列

ElemType *pa =La.elem;

ElemType*pb =Lb.elem;

Lc.listsize= Lc.length = La.length +Lb.length;

ElemType*pc = Lc.elem = (ElemType *)malloc(Lc.listsize*sizeof(ElemType));if (!Lc.elem)

{

exit(OVERFLOW);

}

ElemType*pa_last = La.elem + La.length - 1;

ElemType*pb_last = Lb.elem + Lb.length - 1;while (pa <= pa_last && pb <=pb_last)

{if (*pa <= *pb)

{*pc++ = *pa++;

}else{*pc++ = *pb++;

}

}while (pa <=pa_last)

{*pc++ = *pa++;

}while (pb <=pb_last)

{*pc++ = *pb++;

}

}//MergeList_Sq/**

My code*/

voidPrintList(SqList L)

{for (int i = 1; i <= L.length; i++)

{

printf("%dt", L.elem[i-1]);

}

printf("n");

}/**

My Test*/

int main(int argc, char const *argv[])

{

SqList La, Lb, Lc;

InitList_Sq(La);

InitList_Sq(Lb);

InitList_Sq(Lc);//创建一个1 2 3 4的线性表

ListInsert_Sq(La, 1, 10);

ListInsert_Sq(La,2, 20);

ListInsert_Sq(La,3, 30);

ListInsert_Sq(La,4, 50);

PrintList(La);//在位序4(即值为5的位置)插 4

ListInsert_Sq(La, 4, 40);

PrintList(La);//创建线性表Lb;10, 20, 5, 30

ListInsert_Sq(Lb, 1, 15);

ListInsert_Sq(Lb,2, 25);

ListInsert_Sq(Lb,3, 5);

ListInsert_Sq(Lb,4, 35);

PrintList(Lb);inttemp;//删除位置3的元素，并返回给 temp

ListDelete_Sq(Lb, 3, temp);

PrintList(Lb);

printf("%dn", temp);//查找 30 在 Lb 的位置

printf("%dn", LocateElem_Sq(Lb, 30, compare));

printf("%dn", LocateElem_Sq(Lb, 35, compare));//合并La， Lb 到 Lc，注意前提是有序的

MergeList_Sq(La, Lb, Lc);

PrintList(Lc);return 0;

}