数据结构(c语言)课设4——校园导游咨询(图)

数据结构(c语言)课设4——校园导游咨询(图)

题目描述:

设计一个校园导游程序,为来访的客人提供各种信息查询服务。
(1)设计学校的校园平面图,所含景点不少于10个,以图中顶点表示校内各景点,存放景点名称、代号、简介等信息;以边表示路径,存放路径长度等相关信息;
(2)提供基本信息的修改功能;
(3)为来访客人提供图中任意景点相关信息的查询;
(4)为来访客人提供景点的问路查询,即已知一个景点,查询到某景点之间的一条最短路径及长度。

#include 

using namespace std;
#define MAXInt 32767
#define MAXNUM 100
typedef struct
{
    string Name;
    string Num;
    string Info;
}places;
typedef struct//邻接矩阵存储
{
    places vexs[MAXNUM];
    int arcs[MAXNUM][MAXNUM];
    int vexnum, arcnum;
}TGraph;
void CreateUDN(TGraph &G, int DNum, int BNum)//创建
{
    G.vexnum = DNum;
    G.arcnum = BNum;
    for(int i = 0; i < G.vexnum; ++i)
    {
        cin>>G.vexs[i].Num>>G.vexs[i].Name>>G.vexs[i].Info;//输入顶点信息
    }
    for(int i = 0; i < G.vexnum; ++i)//初始化
    {
        for(int j = 0; j < G.vexnum; ++j)
        {
            G.arcs[i][j] = MAXInt;
        }
    }
    for(int k = 0; k < G.arcnum; ++k)
    {
        int v1, v2, w;
        cin>>v1>>v2>>w;
        int i = v1 - 1, j = v2 - 1;
        G.arcs[i][j] = w;
        G.arcs[j][i] = G.arcs[i][j];
    }
}
void Query(TGraph &G, string name)//查询
{
    for(int i = 0; i < G.vexnum; i++)
    {
        if(G.vexs[i].Name == name)
        {
            cout<<G.vexs[i].Num<<" "<<G.vexs[i].Name<<" "<<G.vexs[i].Info<<endl;
        }
    }
}
int LocateVex(TGraph &G, string v)//返回顶点的下标
{
    for(int i = 0; i < G.vexnum; ++i)
    {
        if(v == G.vexs[i].Name)
        {
            return i;
        }
    }
    return -1;
}
int D[MAXNUM][MAXNUM];
int Path[MAXNUM][MAXNUM];
void print_Floyd(TGraph G, int i, int j) {  //根据Floyd算法利用递归输出最短路线PATH
    if(Path[i][j] == -1)
        cout << G.vexs[j].Name;
    else {
        print_Floyd(G, i, Path[i][j]);//递归
        cout << "->" << G.vexs[j].Name;
        }
}
void ShortestPath_Floyd(TGraph &G, string name1, string name2)//最短路径
{
    int n = LocateVex(G, name1);
    int m = LocateVex(G, name2);
    for(int i = 0; i < G.vexnum; ++i)
    {
        for(int j = 0; j < G.vexnum; ++j)
        {
            D[i][j] = G.arcs[i][j];
            if(D[i][j] != MAXInt && i != j)
            {
                Path[i][j] = i;
            }
            else
            {
                Path[i][j] = -1;
            }
        }
    }
    for(int i = 0; i < G.vexnum; i++)
        D[i][i] = 0;
    for(int k = 0; k < G.vexnum; ++k)
    {
        for(int i = 0; i < G.vexnum; ++i)
        {
            for(int j = 0; j < G.vexnum; ++j)
            {
                if(D[i][k] + D[k][j] < D[i][j])
                {
                    D[i][j] = D[i][k] + D[k][j];
                    Path[i][j] = Path[k][j];
                }
            }
        }
    }
    cout << D[n][m] << endl;
    print_Floyd(G, n, m);
    cout << endl;
}
void Modify(TGraph &G, string name1, string num, string name2, string info)
{
    places p;
    int u = LocateVex(G, name1);
    p.Num = num;
    p.Name = name2;
    p.Info = info;
    G.vexs[u] = p;
}
int main()
{
    TGraph G;
    int a;
    string str1, str2, str3, str4, str5;
    int op, t;
    int m, n;
    cin>>m>>n;
    CreateUDN(G, m, n);
    cin>>op;
    while(op--)
    {
        cin>>str1;
        if(str1 == "Query")
        {
            cin>>t;
            if(t == 1)
            {
                a = 1;
            }
            else if(t == 2)
            {
                a = 2;
            }
        }
        else if(str1 == "Modify")
        {
            a = 3;
        }
        switch(a)
        {
            case 1:
                {
                    cin>>str2;
                    Query(G, str2);
                    break;
                }
            case 2:
                {
                    cin>>str2>>str3;
                    ShortestPath_Floyd(G, str2, str3);
                    break;
                }
            case 3:
                {
                    cin>>str2>>str3>>str4>>str5;
                    Modify(G, str2, str3, str4, str5);
                    break;
                }
            default:break;
        }
    }
    return 0;
}
/*5 6
TS001 Library good
TS002 Gymnasium good
TS003 IndustrialTrainingCentre good
TS004 T-PARK good
TS005 WetlandPark good
1 2 1
1 3 3
2 3 4
3 4 3
4 5 1
3 5 1
4
Query 1 Library
Modify Library TS001 Library nice
Query 1 Library
Query 2 Library T-PARK*/

此博文只用于博主记录学习过程(有问题可以评论)

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