数据结构编程实例

1、数据结构编程实例1 顺序表的基本操作#define LEN 100typedef struct sqlistint aLEN;int length;void init(struct sqlist *sq) /*初始化*/int i; for (i=0;i<LEN;i+) sq->ai=0; sq->length=0;void creat(struct sqlist *sq) /*建顺序表*/int i; printf("please input length"); scanf("%d",&sq->length); prin

2、tf("please input %d numsn",sq->length); for (i=1; i<=sq->length;i+) scanf("%d",&sq->ai); void print(struct sqlist *sq) /*输出顺序表*/ int i; for (i=1; i<=sq->length;i+) printf(" %d",sq->ai); printf("n");void insert(struct sqlist *sq,int pos

3、, int x) /*顺序表插入元素*/int i; for (i=sq->length;i>=pos;i-) sq->ai+1=sq->ai; sq->apos=x; sq->length=sq->length+1; int delete(struct sqlist *sq,int pos) /*顺序表删除元素*/int i,x; x=sq->apos; for (i=pos+1;i<=sq->length;i+) sq->ai-1=sq->ai; sq->length=sq->length-1; retur

4、n(x); main()int position,x; struct sqlist *list; struct sqlist slist; int xz=0; list =&slist; while (1) printf("1.initn"); printf("2.creatn"); printf("3.insertn"); printf("4.deleten"); printf("5.locate_valuen"); printf("6.locate_posn");

5、 printf("7.printn"); printf("0.exitn"); printf("please input your choice"); scanf("%d",&xz); switch(xz) case 1:init(list);break; case 2:creat(list);break; case 3:printf("pleast input inset position(pos) and value(x)"); scanf("%d%d",&

6、;position,&x); if (position<1|position>list->length+1|list->length>=LEN)printf("position errorn"); else insert(list,position,x); break; case 4:printf("pleast input delete position(pos)"); scanf("%d",&position); if (position<1|position>list-&

7、gt;length|list->length=0)printf("position errorn"); elseprintf("delete position=%d,delete data=%dn",position,delete(list,position); break; case 5:; case 6:; case 7:print(list);break; case 0:exit(0); 2 三种方法建立链表#include <stdio.h>typedef struct nodeint data; struct node *li

8、nk;NODE;NODE *creat1() /*按输入数据的顺序建立链表，输入数据通过个数控制*/int i,data,n;NODE *h=NULL,*p,*last=NULL;printf("please input the num:");scanf("%d",&n);printf("please input %d datas:",n);for (i=1;i<=n;i+) p=(NODE*) malloc (sizeof (NODE); scanf("%d",&p->data); i

9、f (i=1) h=p; else last->link=p; last=p; last->link=NULL; return(h);NODE *creat2()/*按输入数据的逆序建立链表，输入数据以0结束*/int data;NODE *h=NULL,*p;printf("please input datas(0 end)n");scanf("%d",&data);while (data) p=(NODE*) malloc (sizeof (NODE); p->data=data; if (h=NULL) h=p; h-&g

10、t;link=NULL; else p->link=h; h=p; scanf("%d",&data); return(h);NODE *creat3()/*按输入数据的大小顺序建立带头结点的链表，输入数据以0结束*/int data;NODE *h,*p,*q,*r;h=(NODE*) malloc (sizeof (NODE); h->link=NULL;printf("please input datas(0 end)n");scanf("%d",&data);while (data) p=(NODE

11、*) malloc (sizeof (NODE); p->data=data; p->link=NULL; if (h->link=NULL) h->link=p; else r=h; q=r->link; while (p->data>q->data && q) r=q; q=q->link; if (q) p->link=q; r->link=p; scanf("%d",&data); return(h->link); main()NODE *h,*p; int x; do

12、printf("=n"); printf("1.zhengxujianlianbiaon"); printf("2.nixujianlianbiaon"); printf("3.jianliyouxulianbiaon"); printf("0.tuichun"); printf("=n"); printf("please input your chosice"); scanf("%d",&x); switch(x) case

13、1: h=creat1();break; case 2: h=creat2();break; case 3: h=creat3();break; case 0: return; p=h; while (p) printf("%5d",p->data); p=p->link; printf("nn"); while (x);3 试写出逆转线性单链表的算法要逆转一个线性单链表，只需从头指针指向的结点开始扫描该链表，在扫描过程中改变各结点的指针（由指向后件改为指向原来的前件）即可。Struct node/*ET位数据元素类型*/ET d;struc

14、t node *next;invlst(head)struct node *head ;struct node *p, *q, *r ;if (*head=NULL) return;p=*head; q=p->next;p->next=NULL;while (q!=NULL)r=q->next; q->next=p;p=q; q=r;*head=p;return; 4 设有两个有序线性单链表，头指针分别为AH和BH。试写出将两个有序线性单链表合并为一个头指针为CH的有序线性单链表的算法，要求去掉重复元素。Struct node/*ET位数据元素类型*/ET d;stru

15、ct node *next;#include “stdio.h”mglst1(ah,bh,ch)struct node ah,bh,*ch;struct node *i, *j, *k, *p;et x;i=ah; j=bh; *ch=NULL; k=NULL;while (i!=NULL)&&(j!=NULL)if (j->d>=i->d) x=i->d; i=i->next;else x=j->d; j=j->next;if (*ch=NULL)p=(struct node *) malloc (sizeof(struct node

16、);p->d=x; *ch=p; k=p;else if (d!=k->d)p=(struct node *) malloc (sizeof(struct node);p->d=x; k->next=p; k=p;if (j=NULL)while (i!=NULtructL)x=i->d; i=i->next;if (*ch=NULL)p=(struct node *) malloc (sizeof(struct node);p->d=x; *ch=p; k=p;else if (d!=k->d)p=(struct node *) malloc

17、(sizeof(struct node);p->d=x; k->next=p; k=p;elsewhile (j!=NULL)x=j->d; j=j->next;if (*ch=NULL)p=(struct node *) malloc (sizeof(struct node);p->d=x; *ch=p; k=p;else if (d!=k->d)p=(struct node *) malloc (sizeof(struct node);p->d=x; k->next=p; k=p;if (k!=NULL) k->next=NULL;re

18、turn;5 试编写在二叉排序树中插入一个元素的算法。include “stdlib.h”struct btnodeET d;struct btnode *lchild;struct btnode *rchild;struct btnode *insort(bt,b)struct btnode *bt;ET b;struct btnode *p, *q;p=(struct btnode *)malloc (sizeof(struct btnode);p->d=b; p->lchild=NULL; p->rchild=NULL;q=bt;if (q=NULL) bt=p;else while (q->lchild!=p) && (q->rchild!=p)if (b<q->d)if (q->lchild!=NULL) q=q->lchild;el