第11周 项目2

#include <stdio.h>#include <malloc.h>#include "graph.h"//返回图G中编号为v的顶点的出度int OutDegree(ALGraph *G,int v){ ArcNode *p; int n=0; p=G->adjlist[v].firstarc; while (p!=NULL) { n++; p=p->nextarc; } return n;}//输出图G中每个顶点的出度void OutDs(ALGraph *G){ int i; for (i=0; i<G->n; i++) printf(" 顶点%d:%d\n",i,OutDegree(G,i));}//输出图G中出度最大的一个顶点void OutMaxDs(ALGraph *G){ int maxv=0,maxds=0,i,x; for (i=0; i<G->n; i++) { x=OutDegree(G,i); if (x>maxds) { maxds=x; maxv=i; } } printf("顶点%d，出度=%d\n",maxv,maxds);}//输出图G中出度为0的顶点数void ZeroDs(ALGraph *G){ int i,x; for (i=0; i<G->n; i++) { x=OutDegree(G,i); if (x==0) printf("%2d",i); } printf("\n");}//返回图G中是否存在边<i,j>bool Arc(ALGraph *G, int i,int j){ ArcNode *p; bool found = false; p=G->adjlist[i].firstarc; while (p!=NULL) { if(p->adjvex==j) { found = true; break; } p=p->nextarc; } return found;}int main(){ ALGraph *G; int A[7][7]= { {0,1,1,1,0,0,0}, {0,0,0,0,1,0,0}, {0,0,0,0,1,1,0}, {0,0,0,0,0,0,1}, {0,0,0,0,0,0,0}, {0,0,0,1,1,0,1}, {0,1,0,0,0,0,0} }; ArrayToList(A[0], 7, G); printf("(1)各顶点出度:\n"); OutDs(G); printf("(2)最大出度的顶点信息:"); OutMaxDs(G); printf("(3)出度为0的顶点:"); ZeroDs(G); printf("(4)边<2,6>存在吗？"); if(Arc(G,2,6)) printf("是\n"); else printf("否\n"); printf("\n"); return 0;}