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2. 2. t=(bitree *)malloc(sizeof(bitree))£¬bstinsert(t->rchild,k) 3. 3. p->next=s
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void countnode(bitree *bt,int &count) {
if(bt!=0)
{count++; countnode(bt->lchild,count); countnode(bt->rchild,count);} }
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typedef struct {int vertex[m]; int edge[m][m];}gadjmatrix;
typedef struct node1{int info;int adjvertex; struct node1 *nextarc;}glinklistnode; typedef struct node2{int vertexinfo;glinklistnode *firstarc;}glinkheadnode; void adjmatrixtoadjlist(gadjmatrix g1[ ],glinkheadnode g2[ ]) {
int i,j; glinklistnode *p;
for(i=0;i<=n-1;i++) g2[i].firstarc=0; for(i=0;i<=n-1;i++) for(j=0;j<=n-1;j++) if (g1.edge[i][j]==1) {
p=(glinklistnode *)malloc(sizeof(glinklistnode));p->adjvertex=j; p->nextarc=g[i].firstarc; g[i].firstarc=p;
p=(glinklistnode *)malloc(sizeof(glinklistnode));p->adjvertex=i; p->nextarc=g[j].firstarc; g[j].firstarc=p; } }
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