校园导航 终结版

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#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<iostream>
using namespace std;
#define Max 20000
#define NUM 100
typedef struct
{
    int adj;//相邻接的景点之间的路程
} ArcCell; //定义边的类型
typedef struct
{
    int number;//景点编号
    char *view;//景点名称
    char *desc;//景点描述
    //  struct jingdian *nextrac;
} VertexType; //定义顶点的类型
typedef struct
{
    VertexType vex[NUM];//图中的顶点,即为景点
    ArcCell arcs[NUM][NUM];//图中的边,即为景点间的距离
    int vexnum,arcnum;//顶点数,边数
} MGraph; //定义图的类型
MGraph G;//把图定义为全局变量
int P[NUM][NUM];
long int D[NUM];//辅助变量存储最短路径长度
int x[48]= {0};
void CreateUDN(int v,int a);//造图函数
void shuoming();//说明函数
void ShortestPath(int num);//最短路径函数
char SearchMenu();
void output(int sight1,int sight2);//输出函数
char Menu();//主菜单
void search();//查询景点信息
void searchMenu();//查询子菜单
//void HaMiTonian(int);//哈密顿图
//void NextValue(int );
//void display();//显示遍历结果
void add();//增加
void delete1();//删除
void change();//修改
void add()
{
    system("cls");
    printf("请输入你要添加的景点个数:");
    int n;
    scanf("%d",&n);
    printf("\n");
    int ji_shu=n;
    char name[40];
    char describe[1000];
    int i=G.vexnum;
    while(ji_shu!=0)
    {

        G.vex[i].number=i;
        printf("请输入景点名称:");
       /* scanf("%s",name);

        G.vex[i].view=name;*/
        G.vex[i].view=new char[40];
        scanf("%s",G.vex[i].view);
        printf("\n");
        printf("请输入景点描述:");
        //scanf("%s",describe);
        //G.vex[i].desc=describe;
        G.vex[i].desc=new char[1000];
        scanf("%s",G.vex[i].desc);
        printf("\n");
        printf("请输入该景点到各个景点之间的路径长度(如果没有路径则定义为Max:20000):");
        int ju_li;
        printf("\n");
        for(int a=0;a<G.vexnum;a++)
        {
            printf("请输入该景点到%s的距离:",G.vex[a].view);
            scanf("%d",&ju_li);
            G.arcs[a][i].adj=ju_li;
            G.arcs[i][a].adj=ju_li;
        }
        ji_shu--;
        i++;
        G.vexnum++;
    }
    printf("\n\t\t\t景点信息添加完成\n");
    printf("\t\t\t按任意键返回...");
    getchar();
    getchar();
}
void delete1()
{
    char ch;
    int num,i;
    char *name=new char[30];
    ch=SearchMenu();
    switch(ch)
    {
    case '1':
        shuoming();
        printf("\n\t\t请输入您要删除的景点编号:");
        scanf("%d",&num);
        for(i=0; i<G.vexnum; i++)
        {
            if(num==G.vex[i].number)
            {
                for(int j=0; j<G.vex[i].number; j++)
                {
                    G.arcs[num][j].adj=G.arcs[j][num].adj=Max;
                    G.vex[i].view=NULL;
                    G.vex[i].desc=NULL;
                }
                printf("\n\t\t\t景点信息删除完成\n");
                break;

            }
        }
        if(i==G.vexnum)
        {
            printf("\n\n\t\t\t没有找到!");
            printf("\n\n\t\t\t按任意键返回...");
            getchar();
            getchar();

        }
        break;
    case '2':
        //     system("cls");
        shuoming();
        printf("\n\n\t\t请输入您要删除的景点名称:");
        scanf("%s",name);
        for(i=0; i<G.vexnum; i++)
        {
            if(!strcmp(name,G.vex[i].view))
            {
                for(int j=0; j<G.vexnum; j++)
                {
                    G.arcs[i][j].adj=G.arcs[j][i].adj=Max;
                    G.vex[i].view=NULL;
                    G.vex[i].desc=NULL;
                }
                printf("\n\n\t\t\t景点信息删除完成\n");
                break;
            }

        }
        if(i==G.vexnum)
        {
            printf("\n\n\t\t\t没有找到!");
            printf("\n\n\t\t\t按任意键返回...");
            getchar();
            getchar();

        }
        break;
    default:
        break;
    }

    printf("\t\t\t按任意键返回...");
    getchar();
    getchar();
}
void change()
{
    int num,i;
    char *name=new char[30];
    system("cls");
    char ch=SearchMenu();
    switch(ch)

    {
    case '1':
        shuoming();
        int shuzhi;
        printf("\n\n\t\t请输入您要修改的景点编号:");
        scanf("%d",&num);
        for(i=0; i<G.vexnum; i++)
        {
            if(num==G.vex[i].number)
            {
                while(1)
                {
                    printf("\n\t\t1.修改景点名称:");
                    printf("\n\t\t2.修改景点的描述:");
                    printf("\n\t\t3.修改该景点与各景点之间的距离:");
                    printf("\n\t\t4.继续修改:");
                    printf("\n\t\t5.退出修改:");
                    int xuan_ze;
                    printf("\n\t\t请输入你的选择:");
                    scanf("%d",&xuan_ze);
                    system("cls");
                    switch(xuan_ze)
                    {
                    case 1:
                        printf("请输入你要修该的景点名称:");
                        G.vex[num].view=new char[30];
                        scanf("%s",G.vex[num].view);
                        break;
                    case 2:
                        printf("请输入你要修该的景点描述:");
                        G.vex[num].desc=new char[100];
                        scanf("%s",G.vex[num].desc);
                        break;
                    case 3:
                            for(int j=0; j<G.vexnum; j++)
                            {
                                printf("请输入该景点到%s的距离:",G.vex[j].view);
                                scanf("%d",&G.arcs[num][j].adj);
                                G.arcs[j][num].adj=G.arcs[num][j].adj;

                            }
                        break;
                    case 4:
                        shuzhi=1;
                        break;
                    case 5:
                        shuzhi=0;
                        break;

                    }
                    if(shuzhi==1)
                    {
                        continue;

                    }
                    else
                        break;

                }
                printf("\n\t\t\t景点信息修改完成\n");
                break;
            }

        }
        if(i==G.vexnum)
        {
            printf("\n\n\t\t\t没有找到!");
            printf("\n\n\t\t\t按任意键返回...");
            getchar();
            getchar();

        }
        break;
    case '2':
        shuoming();
        printf("\n\n\t\t请输入您要修改的景点名称:");
        scanf("%s",name);
        for(i=0; i<G.vexnum; i++)
        {
            if(!strcmp(name,G.vex[i].view))
            {
                while(1)
                {
                    printf("\n\t\t1.修改景点名称:");
                    printf("\n\t\t2.修改景点的描述:");
                    printf("\n\t\t3.修改该景点与各景点之间的距离:");
                    printf("\n\t\t4.继续修改:");
                    printf("\n\t\t5.退出修改:");
                    int xuan_ze;
                    printf("\n\t\t请输入你的选择:");
                    scanf("%d",&xuan_ze);
                    system("cls");
                    switch(xuan_ze)
                    {
                    case 1:
                        printf("请输入你要修该的景点名称:");
                        G.vex[i].view=new char[30];
                        scanf("%s",G.vex[i].view);
                        break;
                    case 2:
                        printf("请输入你要修该的景点描述:");
                        G.vex[i].desc=new char[30];
                        scanf("%s",G.vex[i].desc);
                        break;
                    case 3:
                            for(int j=0; j<G.vexnum; j++)
                            {
                                printf("请输入该景点到%s的距离:",G.vex[j].view);
                                scanf("%d",&G.arcs[i][j].adj);
                                G.arcs[j][i].adj=G.arcs[i][j].adj;

                            }
                        break;
                    case 4:
                        shuzhi=1;
                        break;
                    case 5:
                        shuzhi=0;
                        break;

                    }
                    if(shuzhi==1)
                    {
                        continue;

                    }
                    else
                        break;

                }
                printf("\n\t\t\t景点信息修改完成\n");
                break;
            }

        }
        if(i==G.vexnum)
        {
            printf("\n\n\t\t\t没有找到!");
            printf("\n\n\t\t\t按任意键返回...");
            getchar();
            getchar();

        }
        break;
    case 't':
        break;
    }
    printf("\t\t\t按任意键返回...");
    getchar();
    getchar();
}
int main()
{
    int v1,v2;
    char ch;
    CreateUDN(16,198);
    do

    {
        ch=Menu();
        switch(ch)

        {
        case '1':
            system("cls");
            shuoming();//输出景点列表
            printf("\n\n\t\t\t请选择起点景点:");
            scanf("%d",&v1);
            printf("\n\n\t\t\t请选择终点景点:");
            scanf("%d",&v2);
            ShortestPath(v1);//计算两个景点之间的最短路径
            output(v1,v2);//输出结果
            printf("\n\n\t\t\t\t请按任意键继续....\n");
            getchar();
            getchar();
            break;
        case '2':
            search();
            break;
        case '3':
            add();
            break;
        case '4':
            delete1();
            break;
        case '5':
            change();
            break;

        }

    }
    while(ch!='t');
    return 0;
}
char Menu()//主菜单
{
    char ch;
    int flag=1;
    while(flag)

    {
        system("cls");
        shuoming();
        printf("\n");
        printf("\t\t\t┏━━━━━━━━━━━━━━━┑\n");
        printf("\t\t\t┃ ┃\n");
        printf("\t\t\t┃ 1、查询景点路径 ┃\n");
        printf("\t\t\t┃ 2、查询景点信息 ┃\n");
        printf("\t\t\t┃ 3、增加景点信息 ┃\n");
        printf("\t\t\t┃ 4、删除景点信息 ┃\n");
        printf("\t\t\t┃ 5、修改景点信息 ┃\n");
        printf("\t\t\t┃ t、退出 ┃\n");
        printf("\t\t\t┃ ┃\n");
        printf("\t\t\t┗━━━━━━━━━━━━━━━┛\n");
        printf("\t\t\t\t请输入您的选择:");
        scanf("%ch",&ch);
        if(ch=='1'||ch=='2'||ch=='3'||ch=='4'||ch=='5'||ch=='t')
            flag=0;

    }
    return ch;
}
char SearchMenu()//查询子菜单
{
    char ch;
    int flag=1;
    while(flag!=0)

    {
        system("cls");
        shuoming();
        printf("\n");
        printf("\t\t\t┏━━━━━━━━━━━━━━━┑\n");
        printf("\t\t\t┃ ┃\n");
        printf("\t\t\t┃ 1、按照景点编号 ┃\n");
        printf("\t\t\t┃ 2、按照景点名称 ┃\n");
        printf("\t\t\t┃ t、退出 ┃\n");
        printf("\t\t\t┃ ┃\n");
        printf("\t\t\t┗━━━━━━━━━━━━━━━┛\n");
        printf("\t\t\t\t请输入您的选择:");
        scanf("%ch",&ch);
        if(ch=='1'||ch=='2'||ch=='t')
            flag=0;

    }
    return ch;
}
void search()//查询景点信息
{
    int num;
    int i;
    char ch;
    char name[40];
    do
    {
        system("cls");
        ch=SearchMenu();
        switch(ch)
        {
        case '1':
            system("cls");
            shuoming();
            printf("\n\n\t\t请输入您要查找的景点编号:");
            scanf("%d",&num);
            for(i=0; i<G.vexnum; i++)
            {
                if(num==G.vex[i].number)
                {
                    printf("\n\n\t\t\t您要查找景点信息如下:");
                    printf("\n\n\t\t\t%-25s\n\n",G.vex[i].desc);
                    printf("\n\t\t\t按任意键返回...");
                    getchar();
                    getchar();
                    break;

                }

            }
            if(i==G.vexnum)
            {
                printf("\n\n\t\t\t没有找到!");
                printf("\n\n\t\t\t按任意键返回...");
                getchar();
                getchar();

            }
            break;
        case '2':
            system("cls");
            shuoming();
            printf("\n\n\t\t请输入您要查找的景点名称:");
            scanf("%s",name);
            for(i=0; i<G.vexnum; i++)
            {
                if(!strcmp(name,G.vex[i].view))
                {
                    printf("\n\n\t\t\t您要查找景点信息如下:");
                    printf("\n\n\t\t\t%-30s\n\n",G.vex[i].desc);
                    printf("\n\t\t\t按任意键返回...");
                    getchar();
                    getchar();
                    break;

                }

            }
            if(i==G.vexnum)
            {
                printf("\n\n\t\t\t没有找到!");
                printf("\n\n\t\t\t按任意键返回...");
                getchar();
                getchar();

            }
            break;

        }

    }
    while(ch!='t');
}
void CreateUDN(int v,int a)//构图函数
{
    int i,j;
    G.vexnum=v;//初始化顶点数,即为景点数
    G.arcnum=a;//初始化边数
    for(i=0; i<G.vexnum; i++)
        G.vex[i].number=i;//初始化每一个景点的编号
    G.vex[0].view ="南门";
    G.vex[0].desc="北校的南大门";
    G.vex[1].view ="西门";
    G.vex[1].desc="北校的西大门";
    G.vex[2].view ="北门";
    G.vex[2].desc="北校的北大门,对面是新世界百货";
    G.vex[3].view ="东门";
    G.vex[3].desc="北校的东大门,对面是烟大浴场";
    G.vex[4].view ="综合楼";
    G.vex[4].desc="学习上课";
    G.vex[5].view ="逸夫图书馆";
    G.vex[5].desc="读书";
    G.vex[6].view ="七餐";
    G.vex[6].desc="没事的天堂";
    G.vex[7].view ="国防生训练场";
    G.vex[7].desc="操场";
    G.vex[8].view ="五教";
    G.vex[8].desc="上课学习";
    G.vex[9].view ="四教";
    G.vex[9].desc="上课学习";
    G.vex[10].view ="六教";
    G.vex[10].desc="上课学习";
    G.vex[11].view ="七教";
    G.vex[11].desc="上课学习";
    G.vex[12].view ="钟楼";
    G.vex[12].desc="学校最古老的建筑";
    G.vex[13].view ="图书馆";
    G.vex[13].desc="老的图书馆";
    G.vex[14].view ="一教";
    G.vex[14].desc="考研教室";
    G.vex[15].view ="二教";
    G.vex[15].desc="考研教室";
    G.vex[16].view ="三教";
    G.vex[16].desc="考研教室";
    //这里把所有的边假定为20000,含义是这两个景点之间是不可到达的
    for(i=0; i<G.vexnum; i++)
        for(j=0; j<G.vexnum; j++)
            G.arcs[i][j].adj=Max;
    G.arcs[0][1].adj =G.arcs[1][0].adj =100;
    G.arcs[0][3].adj =G.arcs[3][0].adj =150 ;
    G.arcs[0][4].adj =G.arcs[4][0].adj =50;
    G.arcs[0][6].adj =G.arcs[6][0].adj =700;
    G.arcs[0][7].adj =G.arcs[7][0].adj =800;
    G.arcs[0][8].adj =G.arcs[8][0].adj =500;
    G.arcs[0][11].adj =G.arcs[11][0].adj =1000;
    G.arcs[0][13].adj =G.arcs[13][0].adj =1500;
    G.arcs[1][2].adj =G.arcs[2][1].adj =20;
    G.arcs[1][4].adj =G.arcs[4][1].adj =100;
    G.arcs[2][3].adj =G.arcs[3][2].adj =70;
    G.arcs[2][4].adj =G.arcs[4][2].adj =150;
    G.arcs[3][5].adj =G.arcs[5][3].adj =70;
    G.arcs[3][7].adj =G.arcs[7][3].adj =550;
    G.arcs[4][5].adj =G.arcs[5][4].adj =200;
    G.arcs[4][7].adj =G.arcs[7][4].adj =100;
    G.arcs[5][6].adj =G.arcs[6][5].adj =250;
    G.arcs[6][7].adj =G.arcs[7][6].adj =150;
    G.arcs[7][8].adj =G.arcs[8][7].adj =200;
    G.arcs[8][9].adj =G.arcs[9][8].adj =150;
    G.arcs[8][10].adj =G.arcs[10][8].adj =50;
    G.arcs[8][12].adj =G.arcs[12][8].adj =300;
    G.arcs[8][14].adj =G.arcs[14][8].adj =160;
    G.arcs[10][11].adj =G.arcs[11][10].adj =350;
    G.arcs[11][12].adj =G.arcs[12][11].adj =200;
    G.arcs[12][13].adj =G.arcs[13][12].adj =250;
    G.arcs[14][15].adj =G.arcs[15][14].adj =120;
    G.arcs[15][16].adj =G.arcs[16][15].adj =20;
}
void shuoming()
{
    int i,k=0;
    printf("\n\t\t******************欢迎烟台大学校园导航旅游程序****************\n");
    printf("\t__________________________________________________________________\n");
    printf("\t\t景点名称\t\t↓\t景点描述\n");
    printf("\t________________________________↓_________________________________\n");
    for(i=0;i<G.vexnum;i++)
    {
        printf("\t%c (%2d)%-10s\t\t↓\t%-30s%c\n",25,i,G.vex[i].view,G.vex[i].desc,24);
        k++;
    }
    printf("\t________________________________↓_________________________________\n");
}
void ShortestPath(int num) // 迪杰斯特拉算法最短路径函数 num为入口点的编号
{
    int v,w,i,t; //i、w和v为计数变量
    int final[G.vexnum];
    int min;
    for(v=0;v<G.vexnum;v++)
    {
        final[v]=0; // 假设从顶点num到顶点v没有最短路径
        D[v]=G.arcs[num][v].adj;// 将与之相关的权值放入D中存放
        for(w=0;w<G.vexnum;w++) // 设置为空路径 /
            P[v][w]=0;
        if(D[v]<20000) //存在路径
        {
            P[v][num]=1; // 存在标志置为一
            P[v][v]=1; // 自身到自身
        }
    }
    D[num]=0;
    final[num]=1; //初始化num顶点属于S集合
    //开始主循环,每一次求得num到某个顶点的最短路径,并将其加入到S集合
    for(i=0;i<G.vexnum;++i) // 其余G.vexnum-1个顶点
    {
        min=Max; // 当前所知离顶点num的最近距离
        for(w=0;w<G.vexnum;++w)
        if(!final[w]) // w顶点在v-s中
        if(D[w]<min) // w顶点离num顶点更近
        {
            v=w;
            min=D[w];
        }
        final[v]=1; // 离num顶点更近的v加入到s集合
        for(w=0;w<G.vexnum;++w) //更新当前最短路径极其距离
            if(!final[w]&&((min+G.arcs[v][w].adj)<D[w])) //不在s集合,并且比以前所找到的路径都短就更新当前路径
            {
                D[w]=min+G.arcs[v][w].adj;
                for(t=0;t<G.vexnum;t++)
                P[w][t]=P[v][t];
                P[w][w]=1;
            }
    }
}

void output(int sight1,int sight2) // 输出函数
{
    int a,b,c,d,q=0;
    a=sight2; // 将景点二赋值给a
    if(a!=sight1) // 如果景点二不和景点一输入重合,则进行...

    {
        printf("\n\t从%s到%s的最短路径是",G.vex[sight1].view,G.vex[sight2].view);// 输出提示信息
        printf("\t(最短距离为 %dm.)\n\n\t",D[a]); // 输出sight1到sight2的最短路径长度,存放在D[]数组中
        printf("\t%s",G.vex[sight1].view); // 输出景点一的名称
        d=sight1; // 将景点一的编号赋值给d
        for(c=0; c<G.vexnum; ++c)
        {
            gate: // 标号,可以作为goto语句跳转的位置
            P[a][sight1]=0;
            for(b=0; b<G.vexnum; b++)
            {
                if(G.arcs[d][b].adj<20000&&P[a][b]) // 如果景点一和它的一个临界点之间存在路径且最短路径
                {
                    printf("-->%s",G.vex[b].view); // 输出此节点的名称
                    q=q+1; // 计数变量加一,满8控制输出时的换行
                    P[a][b]=0;
                    d=b; // 将b作为出发点进行下一次循环输出,如此反复
                    if(q%8==0)
                        printf("\n");
                    goto gate;

                }

            }

        }

    }
}

 

 

 

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