第十二周项目1 图基本算法库

头文件:

#define MAXV 100                
#define INF 32767       
typedef int InfoType;

//以下定义邻接矩阵类型
typedef struct
{
    int no;                     
    InfoType info;             
} VertexType;                   

typedef struct                 
{
    int edges[MAXV][MAXV];      
    int n,e;                    
    VertexType vexs[MAXV];      
} MGraph;                       

//以下定义邻接表类型
typedef struct ANode            
{
    int adjvex;                 
    struct ANode *nextarc;      
    InfoType info;              
} ArcNode;

typedef int Vertex;

typedef struct Vnode           
{
    Vertex data;               
    int count;                  
    ArcNode *firstarc;          
} VNode;

typedef VNode AdjList[MAXV];   

typedef struct
{
    AdjList adjlist;           
    int n,e;                    
} ALGraph;                     





void ArrayToMat(int *Arr, int n, MGraph &g); 
void ArrayToList(int *Arr, int n, ALGraph *&); 
void MatToList(MGraph g,ALGraph *&G);
void ListToMat(ALGraph *G,MGraph &g);
void DispMat(MGraph g);
void DispAdj(ALGraph *G);
#include <stdio.h>
#include <malloc.h>
源文件:

#include"head.h"

void ArrayToMat(int *Arr, int n, MGraph &g)
{
    int i,j,count=0;  
    g.n=n;
    for (i=0; i<g.n; i++)
        for (j=0; j<g.n; j++)
        {
            g.edges[i][j]=Arr[i*n+j];
            if(g.edges[i][j]!=0)
                count++;
        }
    g.e=count;
}

void ArrayToList(int *Arr, int n, ALGraph *&G)
{
    int i,j,count=0;  
    ArcNode *p;
    G=(ALGraph *)malloc(sizeof(ALGraph));
    G->n=n;
    for (i=0; i<n; i++)                 
        G->adjlist[i].firstarc=NULL;
    for (i=0; i<n; i++)                 
        for (j=n-1; j>=0; j--)
            if (Arr[i*n+j]!=0)      
            {
                p=(ArcNode *)malloc(sizeof(ArcNode));  
                p->adjvex=j;
                p->info=Arr[i*n+j];
                p->nextarc=G->adjlist[i].firstarc;    
                G->adjlist[i].firstarc=p;
            }

    G->e=count;
}

void MatToList(MGraph g, ALGraph *&G)

{
    int i,j;
    ArcNode *p;
    G=(ALGraph *)malloc(sizeof(ALGraph));
    for (i=0; i<g.n; i++)                  
        G->adjlist[i].firstarc=NULL;
    for (i=0; i<g.n; i++)                   
        for (j=g.n-1; j>=0; j--)
            if (g.edges[i][j]!=0)       
            {
                p=(ArcNode *)malloc(sizeof(ArcNode));  
                p->adjvex=j;
                p->info=g.edges[i][j];
                p->nextarc=G->adjlist[i].firstarc;     
                G->adjlist[i].firstarc=p;
            }
    G->n=g.n;
    G->e=g.e;
}

void ListToMat(ALGraph *G,MGraph &g)

{
    int i,j;
    ArcNode *p;
    g.n=G->n;  
    g.e=G->e;
    for (i=0; i<g.n; i++)   
        for (j=0; j<g.n; j++)
            g.edges[i][j]=0;
    for (i=0; i<G->n; i++)  
    {
        p=G->adjlist[i].firstarc;
        while (p!=NULL)
        {
            g.edges[i][p->adjvex]=p->info;
            p=p->nextarc;
        }
    }
}

void DispMat(MGraph g)

{
    int i,j;
    for (i=0; i<g.n; i++)
    {
        for (j=0; j<g.n; j++)
            if (g.edges[i][j]==INF)
                printf("%3s","∞");
            else
                printf("%3d",g.edges[i][j]);
        printf("\n");
    }
}

void DispAdj(ALGraph *G)

{
    int i;
    ArcNode *p;
    for (i=0; i<G->n; i++)
    {
        p=G->adjlist[i].firstarc;
        printf("%3d: ",i);
        while (p!=NULL)
        {
            printf("-->%d/%d ",p->adjvex,p->info);
            p=p->nextarc;
        }
        printf("\n");
    }
}
main函数:

#include"head.h"
int main()
{
    MGraph g1,g2;
    ALGraph *G1,*G2;
    int A[6][6]=
    {
        {0,5,0,7,0,0},
        {0,0,4,0,0,0},
        {8,0,0,0,0,9},
        {0,0,5,0,0,6},
        {0,0,0,5,0,0},
        {3,0,0,0,1,0}
    };

    ArrayToMat(A[0], 6, g1);  
    printf(" 有向图g1的邻接矩阵:\n");
    DispMat(g1);

    ArrayToList(A[0], 6, G1);
    printf(" 有向图G1的邻接表:\n");
    DispAdj(G1);

    MatToList(g1,G2);
    printf(" 图g1的邻接矩阵转换成邻接表G2:\n");
    DispAdj(G2);

    ListToMat(G1,g2);
    printf(" 图G1的邻接表转换成邻接邻阵g2:\n");
    DispMat(g2);
    printf("\n");
    return 0;
}
第十二周项目1 图基本算法库_第1张图片



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