数据结构实验题

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#include<iostream>
using namespace std;
int main()
{
  int n,count;
  cin>>n;
  if(n>=2){
    printf("%d ",2);
    count++;
  }
  for(int i=0;i<n;i++){
    for(int j=2;j*j<i;j++){
      if(i%j==0){
        continue;
      }
      else{
        printf("%d ",i);
        count++;
        if(count%10==0){
          printf("\n");
        }
      }
    }
  }
}

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#include<iostream>
#include <stdio.h>
#include<string.h>
using namespace std;
int main()
{

  string s;
  cin>>s;
  string g=s;

  for(int i=0;i<s.size();i++){
    g[s.size()-i-1]=s[i];
  }
  if(s==g){
    printf("回文");
  }
  else{
    printf("非回文");
  }
}

顺序表

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#include<iostream>
typedef int ElemType;
void CreateList(SqList *&L,ElemType a[],int n)//由a中的a个元素建立顺序表
{
   int i;
   L=(SqList *)malloc(sizeof(SqList));
   for(i=0;i<n;i++)
	   L->data[i]=a[i];
   L->length=n;
}
void InitList(SqList *&L）//初始化线性表
{
  L=(SqList *)malloc(sizeof(SqList));
  L->length=0;
}
void LocatElem(SqList *L,ElemType e)//查找元素
{
  int i=0;
  while(i<L->length&&L->data[i]!=e)
	  i++;
  if(i>=L->length)
	  return 0;
  else
	  return i+1;

}
bool ListInsert(SqList *&L,int i,ElemType e)//插入元素
{
  int j;
  if(i<1||i>L->length+1)
	  return false;
  i--;
  for(j=L->length;j>i;j--)
	  L->data[j]=L->data[j-1];
  L->data[i]=e;
  L->length++;
  return trun;
}
using namespace std;
int main()
{
	CreateList la,lb;
    int j,i;
	i=initlist(&la);
	if(i==1)

 }

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#include<stdio.h>

#include<stdlib.h>

#define MAXSIZE 100

typedef int DataType;

#define OK 1

#define ERROR -1

#define FALSE 0

#define True 2

typedef struct

{

DataType data[MAXSIZE];

int length;

} SqList;

int InitList(SqList *L )//初始化

{

L->length=0; //空表，长度为0

return OK;

}

int ListEmpty(SqList *L)//判断是否为空表

{

if (L->length==0)

return True;

if (L->length!=0)

return FALSE;

}

int ListLength(SqList L)//求表长

{

return (L.length);

}

void ListTraverse(SqList L)//输出表

{

int i;

for(i=0;i<L.length;i++)

printf("%d ",L.data[i]);

printf("\n");

}

int ListInsert(SqList *L,int i,DataType e)//插入元素

{

int k;

if (L->length==MAXSIZE)

return ERROR;

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

return ERROR;

if (i<=L->length)

{

for(k=L->length-1;k>=i-1;k--)

L->data[k+1]=L->data[k];

}

L->data[i-1]=e;

L->length++;

return OK;

}

int ListDelete(SqList *L,int i,DataType *e)//删除元素

{

int k;

if (L->length==0) return ERROR;

if (i<1 || i>L->length) return ERROR;

*e=L->data[i-1];

if (i<L->length)

{

for(k=i;k<L->length;k++)

L->data[k-1]=L->data[k];

}

L->length--;

return OK;

}

int ListFindEle(SqList *L,DataType e)// 查找元素

{

int i;

for (i=1; i<=L->length; i++)

{

if (e == L->data[i-1])

return i;

}

return FALSE ;

}

int ListAlter(SqList *L,int i,DataType *e)//修改元素

{

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

return ERROR;

L->data[i-1]=*e;

return OK;

}

void ClearList(SqList *L)//清空表

{

L->length=0; //将线性表的长度置为0

}

//释放表空间

void DestroyList(SqList *L) //释放线性表占据的所有存储空间

{

if (L->data)

free(L->data);

}

int main()

{

int tmp=0,locat=0,res=0,n,i;

SqList *list;

list=(SqList*)malloc(sizeof(*list));

printf(" ***********************************\n");

printf("* 1---------初始化 *\n");

printf("* 2---------判断是否为空表 *\n");

printf("* 3---------求表长 *\n");

printf("* 4---------输出表*\n");

printf("* 5---------插入元素 *\n");

printf("* 6---------删除元素 *\n");

printf("* 7---------查找元素 *\n");

printf("* 8---------修改元素 *\n");

printf("* 9---------清空表 *\n");

printf("* 10--------释放表空间 *\n");

printf("* 11--------输入线性表初始值 *\n");

printf("* 12--------退出 *\n");

printf(" ************************************\n");

while(1)

{

printf("请选择菜单号（1-12）:");

scanf("%d",&n);

if(n==0||n>11)

break;

switch(n)

{

case 1:

InitList(list);

printf("已完成初始化!\n");

break;

case 2:

if(ListEmpty(list)==True)

printf("是空表!\n");

else

printf("不是空表!\n");

break;

case 3:

printf("线性表长度为:%d\n",ListLength(*list));

break;

case 4:

printf("线性表元素的值为:");

ListTraverse(*list);

break;

case 5:

printf("要插入的位置和数值为:");

scanf("%d %d",&locat,&res);

ListInsert(list,locat,res);

printf("插入完成!\n");

break;

case 6:

printf("要删除的位置为:");

scanf("%d",&locat);

ListDelete(list,locat,&res);

printf("删除完成!\n");

break;

case 7:

printf("要查找的位置为:");

scanf("%d",&locat);

printf("该位置的值为:%d\n",ListFindEle(list,locat));

break;

case 8:

printf("要修改的位置和数值为:");

scanf("%d %d",&locat,&res);

ListAlter(list,locat,&res);

printf("修改完成!\n");

break;

case 9:

ClearList(list);

printf("表中内容已清空!\n");

break;

case 10: DestroyList(list);

printf("释放成功!\n");

break;

case 11:

InitList(list);

printf("请输入顺序表长度:");

scanf("%d",&list->length);

printf("请输入顺序表的值:");

for(i=0;i< list->length;i++)

scanf("%d",&list->data[i]);

printf("线性元素的值为:\n");

ListTraverse(*list);

break;

case 12:

exit(1);

default:break;

}

}

return 0;

}

04

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#include <stdio.h>  
#include <stdlib.h>  
#include <string.h>  

struct lnode  
{  
    int ID;  
    struct lnode *next;  
};  

void BubbleSort(struct lnode * head);  
int main()  
{  
    int n, i, d;  

    while(scanf("%d", &n) != EOF)  
    {  
        //初始化带头节点的链表  
        struct lnode *head, *s, *r, *p;  

        r = head;  
        for(i = 0; i < n; i ++)  
        {  
            scanf("%d", &d);  

            s -> ID = d;  
            r -> next = s;  
            r = s;  
        }  
        r -> next = NULL;  

        //冒泡排序  
        BubbleSort(head);  

        //打印输出  
        for(p = head -> next; p != NULL; p = p -> next)  
        {  
            if(p -> next == NULL)  
            {  
                printf("%d\n", p -> ID);  
            }else  
            {  
                printf("%d ", p -> ID);  
            }  
        }  
    }  

    return 0;  
}  


void BubbleSort(struct lnode *head)  
{  
    struct lnode *f, *p, *x, *y;  
    f = NULL;  

    if(head -> next == NULL || head -> next -> next == NULL)  
    {  
        return;  
    }  
    while(f != head->next->next)  
    {  
        for(p = head; p -> next -> next != f; p = p -> next)  
        {  
            if(p -> next -> ID > p -> next -> next ->ID)  
            {  
                x = p -> next;  
                y = p -> next -> next;  
                p -> next = y;  
                x -> next = y -> next;  
                y -> next = x;  
            }  
        }  
        f = p -> next;  
    }  
}

04

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#include<iostream>
#include<cstdlib>
#include<cstdio>
using namespace std;

struct Node{
  char Element;
  int length;
  Node *last,*next;
  };
typedef char ElementType;
typedef Node *List;
List L;

  List CreateList(List &L)
{
  List I=(List)malloc(sizeof(Node));
  int length=0;L->next=L->last=nullptr;
  return I;

}
void insect(List &L,ElementType a)
{
  L->length++;
  Node*n=(Node *)malloc(sizeof(Node));
  n->Element=a;
  if(L->next==nullptr){
    L->last=n;L->next=n;
    n->last=n;n->next=n;
  }
 else{
   L->last->next;//L原来的最后一个节点的next指向新最后一个节点
   n->last=L->last;//新最后一个节点的last指向旧最后一个节点
   n->next=L->next;//新最后一个节点指向第一个节点（循环链表）
   L->next->last=n;//第一个节点指向最后一个节点
   L->last=n;//指定最后一个节点
 }

}

void print(List &L)
{
  int n=L->length;
  Node *Node=L->next;
  for(int i=0;i<n;i++){
    cout<<Node->Element;
    Node=Node->next;
  }

}

void output3th(List &L)
{
  Node *Node=L->next;
  for(int i=0;i<3;i++){
    Node=Node->next;
  }
  cout<<Node->Element<<endl;
}

void location(List &L)
{
	char a;
  Node *Node=L->next;
  for(int i=1;i<=L->length;i++){
    if(Node->Element==a){
      cout<<"a location"<<i;
    }
    else
    Node=Node->next;
  }
}

void insect4f(List &L)
{
  Node *m=(Node *)malloc(sizeof(Node));
  Node *Node=L->next;
  for(int i=1;i<=3;i++){
    Node->next=m;
    L->last->last->last=m;
    m->last=Node->next;
    m->next=L->last->last;
    }

}

void delete3th(List &l)
{
  Node *tmp,*Node=L->next;
  for(int i=1;i<=3;i++){
    Node=Node->next;
  }
  tmp=Node;free(tmp);//删掉啦第三个节点
  L->next->next->next=L->last->last;//第二个节点的next指向第四个节点
  L->last->last->last=L->next->next;//第四个节点的last指向第二个节点

}
void DestroyList(List &L)
{
  Node *tmp,*Node=L->next;
  for(int i=0;i<L->length;i++){
    tmp=Node;
    Node=Node->next;
    free(tmp);
  }
  free(L);
}
int printlength(List &L)
{
	return L->length;
}
int main()
{
  char a,b,c,d,e,f;
   List L=CreateList(L);
  insect(L,a);insect(L,b);insect(L,c);insect(L,d);insect(L,e);
  print(L);
  cout<<L->length<<endl;
  cout<<printlength(L)<<endl;
  output3th(L);
  location(L);
  insect4f(L);
  print(L);
  delete3th(L);
  print(L);
  DestroyList(L);
}

05

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#include<iostream>
#include<stdlib.h>
#include<stdio.h>
typedef Node2 *HList;
//1.数据储存
//创建存储结构
#define MaxCol 10
typedef int ElemType;
typedef struct Node1
{
	ElemType data[MaxCol];
	struct Node1 *next;
}DList;

//指定每个表的行列数
typedef struct Node2
{
	int Row, Col;
	DList *next;
}HList;

//2.运算方法
//建表
void CreateTable(HList)
{
	int i, j;
	DList *r, *s;
	h = (HList *)malloc(sizeof(HList));
	printf("表的行列数：\n");
	scanf("%d%d", &h->Row, &h->Col);
	for (int i = 0; i < h->Row; i++) {
		printf("第%d行：", i + 1);
		s = (DList *)malloc(sizeof(DList);
		for (int j = 0; j->h->Col; j++) {
			scanf("%d", &s->data[j]);
			if (h->next == NULL)
				h->next = s;
			else
				r->next = s;
			r = s;


		}
		r->next=NULL;
	}
}

//销毁单链表
void DestroyTable(HList *h)
{
	DList *pre = h->next, *p = pre->next;
	while (p!=NULL)
	{
		free(pre);
		pre = p;
		p = p->next;
	}
	free(pre);
	free(h);
}
//输出单链表
void DispTable(HList *h)
{
	int j;
	DList *p = h->next;
	while (p!=NULL)
	{
		for (j = 0; j < h->Col; j++) {
			printf("%4d", p->data[j]);
			printf("\n");
			p = p->next;
		}
	}
}
//表连接运算法
void LinkTable(HList *h1,HList *h2,HList *h)
{
	int i, j;
	DList *p = h->next, *q, *s, *r;
	printf("连接字段是：第一个表序号，第二个表序号：");
		scanf("%d%d", &i, &j);
	h = (HList)malloc(sizeof(HList));
	h->Row = 0;
	h->Col = h1->Col + h2->Col;
	h->next = NULL;
	while (p!=NULL)
	{
		q = h2->next;
		while (q != NULL)
		{
			if (p->data[i - 1] == q->data[j - 1]) {
				s = (DList)malloc(sizeof(HList));
				for (int k= 0; k < h1->Col; k++)
					s->data[k] = p->data[k];
				for (int k = 0; k < h2->Col; k++)
					s->data[h1->Col + k] = q->data[k];
				if (h->next == NULL)
					h->next = s;
				else
					r->next = s;
				r = s;
				h->Row++;

			}
			p = p->next;
		}
		r->next = NULL;
	}
}



void main()
{
	HList *h1, *h2, *h;
	printf("表1：、n");
	CreateTable(h1);
	printf("表2：\n");
	CreateTable(h2);
	LinkTable(h1, h2, h);
	printf("链接结果表：\n");
	DispTable(h);
	DestroyTable(h1);
	DestroyTable(h2);
	DestroyTable(h);
}

06

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#include<iostream>
using namespace std;


typedef struct
{
	int i, j;
	int pre;
}Box;
typedef struct
{
	Box data[10];
	int front, rear;
}QuType;

bool mgpath1(int xi, int yi, int xe, int ye)
{

	int i, j, find = 0, di;
	QuType qu;
	qu.front = qu.rear = -1;
	qu.rear++;
	qu.data[qu.rear].i = xi; qu.data[qu.rear].j = yi; //(xi, yi)进队
	qu.data[qu.rear].pre = -1;
	mg[xi][yi] = -1;
	while (qu.front != qu.rear && !find)
	{
		qu.front++;
		i = qu.data[qu.front].i; j = qu.data[qu.front].j;
		if (i == xe&&j == ye)
		{
			find = 1;
			print(qu, qu.front);
			return true;

		}

		for (di = 0; di < 4; di++) {
			switch (di)
			{
			case 0:i = qu.data[qu.front].i - 1; j = qu.data[qu.front].j; break;
			case 1:i = qu.data[qu.front].i; j = qu.data[qu.front].j + 1; break;
			case 2:i = qu.data[qu.front].i + 1; j = qu.data[qu.front].j; break;
			case 3:i = qu.data[qu.front].i; j = qu.data[qu.front].j - 1; break;
			}
			if (mg[i][j] == 0) {
				qu.rear++;
				qu.data[qu.rear].i = i; qu.data[qu.rear].j = j;
				qu.data[qu.rear].pre = qu.front;
				mg[i][j] = -1;
			}
		}
	}
	return false;
}
//从队列qu中输出路径
void print(QuType qu, int front)
{
	int k = front, j, ns = 0;
	printf("\n");
	do {
		j = k;
		k = qu.data[k].pre;
		qu.data[j].pre = -1;

	} while (k != 0);
	printf("迷宫路径如下：、n");
	k = 0;
	while (k<10)
	{
		if (qu.data[k].pre == -1) {
			ns++;
			printf("\t(%d,%d)", qu.data[k].i, qu.data[k].j);
			if (ns % 5 == 0) printf("\n");

		}
		k++;
	}
	printf("\n");
}

void main()
{
	int M, N;
	cin >> M >> N;
	if (!mgpath1(1, 1, M, N))
	printf("迷宫误解");

}

07

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#include<iostream>
#include<stdio.h>
using namespace std;
typedef string SqString;
int index(SqString s, SqString t)
{   
	unsigned int i = 0, j = 0;
	while ( i<s.length()&&j<t.length())
	{    
		if (s[i] == t[j]) {
			i++; j++;

	}
		else
		{
			i = i - j + 1;
			j = 0;
		}
		if(j<=t.length())
		break;
	}
	if (j <= t.length()){
		return(i - t.length());}

	else{

		return(-1);}
}

int main()
{
	string s = "aaaaab";
	string t = "aaab";
	index(s, t);
	return 0;

}

08
`
//创建二叉树

#include<btree.h>
void CreatBTNode(BTnode &b,char str)
{
BTNode St[MaxSize],p;
int top=-1,k,j=0;
char ch;
b=NULL;
ch=str[j];
while(ch!=’\0’)
{switch(ch)
{
case ‘(‘:top++,St[top]=p;k=1;break;
case ‘)’:top–;break;
case ‘,’:k=z;break;
default:p=(BTNode *)malloc(sizeof(BTNode));
p->data=ch;p->lchild=p->rchild=NULL;
if(b==NULL)
b=p;
else
{
switch(k)
{
case1:St[top]->lchild=p;break;
case2:St[top]->rchild=p;break;
}
}
}
j++;ch=str[j];
}
}

//查找节点
/递归模型
f(b,x)=NULL
f(b,x)=b
f(b,x)=p
f(b,x)=f(b->rchild,x) /
//对应的递归算法
BTNode FindNode(BTNode b,ElemType x)
{ BTNode *p;
if(b==NULL)
return NULL;
else if(b->data==x)
return b;
else
{ p=FindNode(b->lchild,x);
if(p!=NULL)
return p;
else
return FindNode(b->rchild,x);
}

}

//找孩子节点
BTNode lchildNode(BTNode p)
{
return p->lchild;
}

BTNode rchildNode(BTNode p)
{
return p->rchild;
}

//求高度
/递归模型
f(b)=0
f(b)=MAX{f(b->lchild),f(b->rchild)} /
//递归算法
int BTNodeHeight(BTNode *b)
{ int lchild,rchild;
if(b==NULL) return 0;
else
{ lchild= BTNodeHeight(b->lchild);//求左子树的高度
rchild=BTNodeHeight(b->rchild);
return (lchild>rchild?(lchild+1:rchild+1));
}

}

//输出二叉树
void DispBTNode(BTNode *b)
{ if(b!=NULL)
{ printf(“%c”,b->data);
if(b->lchild!=NULL||b->rchild!=NULL)
{ printf(“(\n” );
DispBTNode(b->lchild);
if(b->rchild!=NULL) printf(“,\n” );
DispBTNode(b->rchild);
printf(“)\n” );
}
}
}

//二叉树的遍历
//先序遍历
void PreOrder(BTNode b)
{ if(b!=NULL)
{ printf(“%c\n”,b->data );
PreOrder(b->lchild);
PreOrder(b->rchild);
}
}
//中根遍历
void InOrder(BTNode b)
{ if(b!=NULL)
{
InOrder(b->lchild);
printf(“%c\n”,b->data );
InOrder(b->rchild);
}
}
//后根遍历

void PostOrder(BTNode b)
{ if(b!=NULL)
{
PostOrder(b->lchild);
PostOrder(b->rchild);
printf(“%c\n”,b->data );
}
}
void main()
{
BTNode b,p,lp,*rp;
CreatBTNode(b,”A(B(D,E(H(J,K(L,M(,N))))),C(F,G(,I)))”);
printf(“二叉树的基本运算”)；
printf(“(1)输出二叉树：”); DispBTNode(b);printf(“\n” );

}