class arcnode: def __init__(self, adjvex, weight, link=None): self.adjvex = adjvex self.weight = weight self.link = link class vexnode: def __init__(self, data, first_arc=None): self.data = data self.first_arc = first_arc class Graph: def __init__(self): self.vex_list = [] self.vex_num = 0 self.edge_num = 0 # 请在这里填写答案 def addVertex(self, vex_val): new_vertex = vexnode(vex_val) self.vex_list.append(new_vertex) self.vex_num += 1 def addEdge(self, f, t, cost=0): def print_graph(self): for i in range(self.vex_num): print(self.vex_list[i].data, end="->") cur = self.vex_list[i].first_arc while cur: print("adj:{},weight:{}".format(cur.adjvex, cur.weight), end="->") cur = cur.link print('None') if __name__ == "__main__": g = Graph() s = input() for vertex in s: g.addVertex(vertex) g.addEdge(0, 1, 11) g.addEdge(0, 2, 55) g.addEdge(2, 3, 88) g.addEdge(0, 3, 33) g.addEdge(1, 2, 44) g.print_graph()

拓扑排序实验报告.doc

=0) { p=(ArcNode *)malloc(sizeof(ArcNode)); p->adjvex = j; p->nextarc = G->adjlist[i].firstarc; G->adjlist[i].firstarc = p; } G->n=n; } void TopSort(ALGraph * G) { int i,j,flag=0,a[MAXV]; int St[MAXV]...

图的广度优先遍历.c

ptr=(ARCNODE*)malloc(sizeof(ARCNODE)); /*给结点V1 的相邻接结点V2 分配内存空间*/ ptr->adjvex=v2; /*将顶点v2插入到链表中，使得结点插入后单链表仍然有序*/ ptr->next=adjlist[v1].firstarc; adjlist[v1]....

完善代码：void AddEdge(Graph* G,char v1,char v2,int weight) { ArcNode* p = (ArcNode)malloc(sizeof(ArcNode)); p->adjvex = v2; p->weight = weight; // 添加权值 p->next = G->vertices[v1].firstarc; G->vertices[v1].firstarc = p; ++G->arcnum; p = (ArcNode)malloc(sizeof(ArcNode)); p->adjvex = v1; p->weight = weight; // 添加权值 p->next = G->vertices[v2].firstarc; G->vertices[v2].firstarc = p; ++G->arcnum; }

void AddEdge(Graph* G, char v1, char v2, int weight) { ArcNode* p1 = (ArcNode*)malloc(sizeof(ArcNode)); p1->adjvex = v2; p1->weight = weight; p1->next = G->vertices[v1].firstarc; G->vertices[v1]....

创建名为 ex060901_04.py 的文件，在文件中定义 3 个类，第一个是顶点的结点类，第二个是弧的结点类，第三个是图类，该类包含存储图的邻接表及图的广度优先遍历方法。请按以下步骤完成有向图的存储、广度优先遍历该图并输出对应的序列。（1）创建一个如图所示的有向图，并使用邻接表存储。（2）以顶点 A 为起点，广度优先遍历该图。（3）将广度优先遍历所得的序列输出

def __init__(self, adjvex): self.adjvex = adjvex self.next_arc = None # 定义图类 class Graph: def __init__(self, vertices): self.vertices = [VertexNode(v) for v in vertices] self.visited = ...

ArcNode* pT = G.vertices[nStart].Firstarc;请解释这段代码

因此，G.vertices[nStart].Firstarc表示起点nStart的第一条边，类型为ArcNode结构体指针。将其赋值给pT后，就可以通过pT来访问起点nStart的第一条边的信息，例如pT->adjvex表示该边的终点。这种方式通常用于遍历图的...

在下列添加边的代码中增加边的权值：// 添加边 void AddEdge(Graph* G, int v1, int v2) { ArcNode* p = (ArcNode)malloc(sizeof(ArcNode)); p->adjvex = v2; p->next = G->vertices[v1].firstarc; G->vertices[v1].firstarc = p; ++G->arcnum; p = (ArcNode)malloc(sizeof(ArcNode)); p->adjvex = v1; p->next = G->vertices[v2].firstarc; G->vertices[v2].firstarc = p; ++G->arcnum; }

可以在代码中增加一个变量来表示边的权值，例如我们可以在ArcNode结构体中增加一个weight变量，然后在AddEdge函数中对这个变量进行赋值即可。修改后的代码如下： // 添加边 void AddEdge(Graph* G, int v1, ...

帮我修改一下以下代码int FirstAdjVertex(AdjList G,int v) { ArcNode p=G.vertex[v].firstarc; if(p!=NULL) { return p->adjvex; } return -1; } int NextAdjVertex(AdjList G,int v,int w) { ArcNode p=G.vertex[v].firstarc;; while(p!=NULL&&p->adjvex==w) { p=p->nextarc; } if(p==NULL) { return -1; } return p->nextarc->adjvex; }

ArcNode *p = G.vertex[v].firstarc; if (p != NULL) { return p->adjvex; } return -1; } int NextAdjVertex(AdjList G, int v, int w) { ArcNode *p = G.vertex[v].firstarc; while (p != NULL && p->...

帮我修改一下这段代码int NextAdjVertex(AdjList G,int v,int w) { ArcNode *p; p=G->vertex[v].firstarc; while(p!=NULL&&p.adjvex!=w) { p=p->nextarc; return p->nextarc; } return -1; }

ArcNode *p = G->vertex[v].firstarc; while (p != NULL && p->adjvex != w) { p = p->nextarc; } if (p == NULL) { // 没有找到相邻的节点 w return -1; } return p->nextarc->adjvex; } 主要修改...

ArcNode q = (ArcNode )malloc(sizeof(ArcNode));//申请一个结点 q->adjvex=k; //此节点所指向的下一个顶点序号为K q->nextarc=p.vertices[j].firstarc; //节点所指向的弧变成第j个节点的上一条弧 p.vertices[j].firstarc=q;

这段代码是用来实现有向图的邻接表存储结构中，添加一条从顶点j指向顶点k的弧的操作...而ArcNode则是邻接表中的弧节点结构体，包含了一个指向下一个顶点的指针（adjvex字段）和一个指向下一条弧的指针（nextarc字段）。

帮我修改一下这段代码int FirstAdjVertex(AdjList G,int v) { ArcNode *p; p=G.vertex[v].firstarc; while(p!=NULL) { return p->nextarc->adjvex; } return -1; }

ArcNode* p = G.vertex[v].firstarc; if (p != NULL) { return p->adjvex; // 返回第一个邻接点的编号 } return -1; // 如果没有邻接点，则返回-1 } 修改后的代码会先判断第一个邻接点是否存在，如果存在...

修改下列代码，使每行输出后没有空格#include<iostream> #define OK 1 #define ERROR 0 #define OVERFLOW -2 #define MVNum 100 //最大顶点数 using namespace std; typedef struct ArcNode{ int adjvex; //邻接点域：该边所指向的顶点的位置 int data; //数据域：存储和边相关的信息 struct ArcNode* nextarc; //链域：指向下一条边的指针 }ArcNode; typedef struct VNode{ int data; //顶点结点的数据域 ArcNode firstarc; //链域：指向第一条依附该顶点的边的指针 }VNode,AdjList[MVNum]; //AdjList表示邻接表类型 typedef struct{ AdjList vertices; int vexnum,arcnum; //图的当前顶点数和边数 }ALGragh; int CreateUDG(ALGragh &G,int vexnum,int arcnum){ //采用邻接表表示法，创建无向图G G.vexnum = vexnum; G.arcnum = arcnum; for(int i=1;i<=vexnum;i++){ G.vertices[i].data = i; G.vertices[i].firstarc = NULL; } for(int k=1;k<=arcnum;k++){ int i,j; cin>>i>>j; ArcNode p = new ArcNode; p->adjvex = j; p->nextarc = G.vertices[i].firstarc; G.vertices[i].firstarc = p; ArcNode q = new ArcNode; q->adjvex = i; q->nextarc = G.vertices[j].firstarc; G.vertices[j].firstarc = q; } return OK; } int InsertVex(ALGragh &G){ //在以邻接表形式存储的无向图G上插入顶点v int v; cin>>v; G.vexnum++; G.vertices[G.vexnum].data = v; G.vertices[G.vexnum].firstarc = NULL; return OK; } int PrintGraph(ALGragh G){ //输出图G for(int i=1;i<=G.vexnum;i++){ cout<<G.vertices[i].data<<" "; ArcNode p = G.vertices[i].firstarc; while(p){ cout<adjvex<<" "; p = p->nextarc; } cout<<endl; } return OK; } int main(){ int n,m; while(cin>>n>>m){ if(n==0 && m==0) break; ALGragh G; CreateUDG(G,n,m); InsertVex(G); PrintGraph(G); } return 0; }

ArcNode *p = new ArcNode; p->adjvex = j; p->nextarc = G.vertices[i].firstarc; G.vertices[i].firstarc = p; ArcNode *q = new ArcNode; q->adjvex = i; q->nextarc = G.vertices[j].firstarc; G....

#include<iostrem> using namespace std; #define MVNum 100 typedef struct ArcNode{ //边结点 int adjvex; struct ArcNode next; }ArcNode; typedef struct VNode{ //顶点 char data; ArcNode firstarc; //指向第一条依附于该顶点边的指针 }VNode,AdjList[MVNum]; typedef struct{ AdjList Vertices; int vexnum,arcnum; //图的顶点数与边数 }ALGraph; ArcNode p1,p2; ALGraph G; int i,j; void Create(ALGraph &G){ cin>>vexnum>>arcnum; // for(i=0;i<vexnum;i++){ cin>>G.Vertices[i].data; G.Vertices[i].firstarc=NULL; } for(i=0;i<arcnum;i++){ cin>>v1>>v2; i=Locate(G,v1); j=Locata(G,v2); p1=new ArcNode; p1->adjvex=j; p1->next = ALGraph.Vertices[i].firstarc; // G.Vertices[i].firstarc=p1; p2=new ArcNode; p2->adjvex =i; p2->next=ALGraph.Vertices[j].firstarc; G.Vertices[j].firstarc=p2; } } void Locate(ALGraph &G,char u){ for(i=0;i<G.arcnum;i++){ if(u==G.Vertices[i].data) return i; } } int main(){ Create(G) } 这段代码怎么修改才能运行

这段代码有一些错误，需要进行修改。以下是修改后的代码： ...3. 修改了ArcNode结构体中的变量名，将adj改为adjvex，更加符合语义。 4. 在Locate函数中增加了最后的return语句，防止出现编译错误。

优化这段代码，并写出来typedef struct ArcNode { int adjvex; struct ArcNode nextarc; }ArcNode; typedef struct VNode { VertexType data; ArcNode firstarc; }VNode, AdjList; typedef struct { AdjList vertices[MVNum]; int vexnum, arcnum; }ALGraph; void CreateUDG(ALGraph &G) { cout << "请输入顶点数和边数：\n"; cin>>G.vexnum>>G.arcnum; for(int i=0; i<G.vexnum; ++i) { cout << "请输入顶点信息：\n"; cin>> G.vertices[i].data; G.vertices[i].firstarc=NULL; } for(int k = 0; k<G.arcnum;++k) { int j; ArcNode p1,p2; cout<<"请输入每条边对应的两个顶点的序号：\n"; cin>>i>>j; p1=new ArcNode; p1->adjvex=j; p1->nextarc= G.vertices[i].firstarc; G.vertices[i].firstarc=p1; p2=new ArcNode; p2->adjvex=i; p2->nextarc= G.vertices[j].firstarc; G.vertices[j].firstarc=p2; } } void DFS(ALGraph G, int v) { //图G为邻接表类型 cout<<v; visited[v] = true; //访问第v个顶点 p= G.vertices[v].firstarc; //p指向v的边链表的第一个边结点 while(p!=NULL) //边结点非空 { w=p->adjvex; //表示w是v的邻接点 if(!visited[w]) DFS(G, w); //如果w未访问，则递归调用DFS p=p->nextarc; //p指向下一个边结点 } }

struct ArcNode { int adjvex; struct ArcNode* nextarc; }; struct VNode { VertexType data; ArcNode* firstarc; }; typedef VNode AdjList[MVNum]; struct ALGraph { AdjList vertices; int vexnum, ...

修改#include <iostream> using namespace std; #define MVNum 100 typedef int Status; typedef char VerTexType; typedef int ArcType; typedef int OtherInfo; typedef struct ArcNode{ int adjvex; struct ArcNode nextarc; OtherInfo info; }ArcNode; typedef struct VNode{ VerTexType data; ArcNode firstarc; }VNode,AdjList[MVNum]; typedef struct { AdjList vertices; //vertex的复数为vertices int vexnum,arcnum; }ALGraph; int LocateVex(ALGraph G,char u) { /* 初始条件: 图G存在,u和G中顶点有相同特征/ / 操作结果: 若G中存在顶点u,则返回该顶点在图中位置;否则返回-1 / for(int i=0;i<G.vexnum;++i){ if(u==G.vertices[i].data){ return i; } } return -1; } Status CreateUDG(ALGraph &G){ int i,j,k; char v1,v2; cin>>G.vexnum>>G.arcnum; for(i=0;i<G.vexnum;++i){ cin>>G.vertices[i].data; G.vertices[i].firstarc=NULL; } for (k=0;k<G.arcnum;++k){ cin>>v1>>v2; i=LocateVex(G,v1); j=LocateVex(G,v2); ArcNode p1,*p2; p1=new ArcNode;p1->adjvex=j; p1->nextarc=G.vertices[i].firstarc; G.vertices[i].firstarc=p1; p2=new ArcNode;p2->adjvex=i; p2->nextarc=G.vertices[j].firstarc; G.vertices[j].firstarc=p2; } return 0; } int main{ CreateUDG(ALGraph H) return 0; }

ArcNode* p1 = new ArcNode; p1->adjvex = j; p1->nextarc = G.vertices[i].firstarc; G.vertices[i].firstarc = p1; ArcNode* p2 = new ArcNode; p2->adjvex = i; p2->nextarc = G.vertices[j].firstarc; G...

优化这段代码#include <iostream>#include <cstring>using namespace std;const int MVNum = 100;typedef int VertexType;struct ArcNode { int adjvex; struct ArcNode* nextarc;};struct VNode { VertexType data; ArcNode* firstarc;};typedef VNode AdjList[MVNum];struct ALGraph { AdjList vertices; int vexnum, arcnum;};void InputVertex(ALGraph& G) { for (int i = 0; i < G.vexnum; ++i) { cout << "请输入顶点信息：\n"; cin >> G.vertices[i].data; G.vertices[i].firstarc = nullptr; }}void InputEdge(ALGraph& G) { for (int k = 0; k < G.arcnum; ++k) { int i, j; ArcNode* p1, * p2; cout << "请输入每条边对应的两个顶点的序号：\n"; cin >> i >> j; p1 = new ArcNode; p1->adjvex = j; p1->nextarc = G.vertices[i].firstarc; G.vertices[i].firstarc = p1; p2 = new ArcNode; p2->adjvex = i; p2->nextarc = G.vertices[j].firstarc; G.vertices[j].firstarc = p2; }}void CreateUDG(ALGraph& G) { cout << "请输入顶点数和边数：\n"; cin >> G.vexnum >> G.arcnum; InputVertex(G); InputEdge(G);}bool visited[MVNum];void DFS(ALGraph G, int v) { cout << v; visited[v] = true; ArcNode* p = G.vertices[v].firstarc; while (p != nullptr) { int w = p->adjvex; if (!visited[w]) { DFS(G, w); } p = p->nextarc; }}int main() { memset(visited, false, sizeof(visited)); ALGraph G; CreateUDG(G); DFS(G, 0); return 0;}

ArcNode* p1 = new ArcNode; p1->adjvex = j; p1->next = G.vertices[i].firstarc; G.vertices[i].firstarc = p1; ArcNode* p2 = new ArcNode; p2->adjvex = i; p2->next = G.vertices[j].firstarc; G....

printf("Output the message of VNode:\n"); for(i=0;i<G->vexnum;++i) printf("v%d\n",G->vertices[i].data); for(k=0;k<G->arcnum;++k) { printf("Please input the %d edge beginpoint and endpoint: ",k+1); scanf("%d%d",&v1,&v2); i=LocateVex(G,v1); j=LocateVex(G,v2); if(i>=0&&j>=0) { ++flag; p=(ArcNode )malloc(sizeof(ArcNode)); p->adjvex=_; p->nextarc=NULL; if(!G->vertices[i].firstarc) G->vertices[i].firstarc=p; else { for(p1=G->vertices[i].firstarc;p1->nextarc;p1=p1->nextarc); ________; } q=(ArcNode )malloc(sizeof(ArcNode)); q->adjvex=i; q->nextarc=NULL; if(!G->vertices[j].firstarc) G->vertices[j].firstarc=q; else { for(q1=G->vertices[j].firstarc;q1->nextarc;q1=q1->nextarc); q1->nextarc=q; } } else { printf("Not hava this edge!\n"); k=flag; } }

在这段代码中，第一个空的位置应该填写的是 j，即： p->adjvex = j; 而第二个空的位置应该填写的是： p1->nextarc = p;

相关推荐

拓扑排序实验报告.doc

c_数据结构_图的相关操作

图的广度优先遍历.c

ArcNode* pT = G.vertices[nStart].Firstarc;请解释这段代码

帮我修改一下这段代码int NextAdjVertex(AdjList G,int v,int w) { ArcNode *p; p=G->vertex[v].firstarc; while(p!=NULL&&p.adjvex!=w) { p=p->nextarc; return p->nextarc; } return -1; }

ArcNode *q = (ArcNode *)malloc(sizeof(ArcNode));//申请一个结点 q->adjvex=k; //此节点所指向的下一个顶点序号为K q->nextarc=p.vertices[j].firstarc; //节点所指向的弧变成第j个节点的上一条弧 p.vertices[j].firstarc=q;

帮我修改一下这段代码int FirstAdjVertex(AdjList G,int v) { ArcNode *p; p=G.vertex[v].firstarc; while(p!=NULL) { return p->nextarc->adjvex; } return -1; }

最新推荐

中文翻译Introduction to Linear Algebra, 5th Edition 2.1节

管理建模和仿真的文件

识别MATLAB微分方程求解中的混沌行为：分析非线性方程混沌行为的实用技巧

physon如何做ERP系统

zigbee-cluster-library-specification

"互动学习：行动中的多样性与论文攻读经历"

探索MATLAB微分方程求解中的分岔分析：揭示方程动态行为的秘密

ic验证工作中如何在平台中加入发数的总数？

JSBSim Reference Manual

关系数据表示学习

ArcNode q = (ArcNode )malloc(sizeof(ArcNode));//申请一个结点 q->adjvex=k; //此节点所指向的下一个顶点序号为K q->nextarc=p.vertices[j].firstarc; //节点所指向的弧变成第j个节点的上一条弧 p.vertices[j].firstarc=q;