图的存储结构
来源：互联网 发布：js 时间比大小 编辑：程序博客网 时间：2024/06/10 03:00
<iframe style="WIDTH: 89.81%; HEIGHT: 64px" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-4577827332549849&dt=1192819750500&lmt=1192819750&prev_fmts=468x60_as&format=468x15_0ads_al_s&output=html&correlator=1192819750437&channel=1741427766&pv_ch=1741427766%2B&url=http%3A%2F%2Fyzkzoo.5d6d.com%2Fthread-68-1-1.html&color_bg=FFFFFF&color_text=000000&color_link=0000FF&color_url=008000&color_border=336699&ref=http%3A%2F%2Fyzkzoo.5d6d.com%2Fforum-16-1.html&cc=100&ga_vid=1025434795.1192631677&ga_sid=1192817968&ga_hid=1871659779&ga_fc=true&flash=8&u_h=768&u_w=1024&u_ah=738&u_aw=1024&u_cd=32&u_tz=480&u_his=2&u_java=true"></iframe>
<iframe style="WIDTH: 44.33%; HEIGHT: 259px" src="http://pagead2.googlesyndication.com/cpa/ads?client=ca-pub-4577827332549849&cpa_choice=CAEaCB94-nvUZWENUB9QugJQtwRQTVAgULcCUB4&oe=gb2312&dt=1192720966468&lmt=1192720966&format=250x250_as&output=html&correlator=1192720966453&channel=2735220158&url=http%3A%2F%2Fyzkzoo.5d6d.com%2Fthread-67-1-1.html&color_bg=FFFFFF&color_text=000000&color_link=0000FF&color_url=008000&color_border=336699&ad_type=text_image&region=_google_cpa_region_&ref=http%3A%2F%2Fyzkzoo.5d6d.com%2Fforum-16-1.html&cc=100&ga_vid=1025434795.1192631677&ga_sid=1192720940&ga_hid=1155529757&ga_fc=true&flash=8&u_h=768&u_w=1024&u_ah=738&u_aw=1024&u_cd=32&u_tz=480&u_his=2&u_java=true"></iframe>一、数组表示法
用两个数组分别存储数据元素（顶点）的信息和数据元素之间的关系（边或弧）的信息。
// 图的数组（邻接矩阵）存储表示
#define INFINITY INT_MAX //最大值无穷大
#define MAX_VERTEX_NUM 20 //最大顶点个数
typedef enum{DG,DN,AG,AN} GraphKind;//有向图，有向网，无向图，无向网
typedef struct ArcCell{
VRType adj; //VRType是顶点关系类型。对无权图，用1或0表示相邻否，对带权图，则为权值类型
InfoType *info; //该弧相关停息的指针
}ArcCell,AdjMatrix[max_vertex_num][max_vertex_num];
tpyedef struct{
VertexType vexs[MAX_VERTEX_NUM]; //顶点向量
AdjMatrix arcs; //邻接矩阵
int vexnum,arcnum; //图的当前顶点数和弧数
GraphKind kind; //图的种类标志
}MGraph;
二、邻接表
邻接表是图的一种链式存储结构。
在邻接表中，对图中每个顶点建立一个单链表，第i个单链表中的结点表示依附于顶点vi的边（对有向图是以顶点vi为尾的弧）。每个结点由三个域组成，其中邻接点域(adjvex)指示与顶点vi邻接的点在图中的位置，链域(nextarc)指示下一条边或弧的结点；数据域(info)存储和边或弧相关的信息，如权值等。每个链表上附设一个表头结点，包含链域(firstarc)指向链表中第一个结点，还设有存储顶点vi的名或其它有关信息的数据域(data)。如：
表结点 adjvex nextarc info
头结点 data firstarc
#define MAX_VERTEX_NUM 20
typedef struct ArcNode{
int adjvex; //该弧所指向的顶点的位置
struct ArcNode *nextarc; //指向下一条弧的指针
InfoType *info; //该弧相关信息的指针
}ArcNode;
typedef struct VNode{
VertexType data; //顶点信息
ArcNode *firstarc; //指向第一条依附该顶点的弧的指针
}VNode,AdjList[MAX_VERTEX_NUM];
typedef struct {
AdjList vertices; //图的当前顶点数和弧数
int vexnum,arcnum; //图的种类标志
int kind;
}ALGraph;
三、总结
图的存储包括哪些要素？
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