DFS Traversal of adjacency tables

Source: Internet
Author: User

Input Sample/* 5 0 AB AD ac cd be de *///output/* Please Input the edge x-->y:ab AD AC cd is de A 1 2 3 B 0 4 C 0 3 D 0  2 4 E 1 3 *///DFS test Data/* 8 0 Please Input the Edge x-->y:ab AC BD be DH EH HF HG FC GC CA A 1 2 2 B 0 3 4 C 0 0 5 6 D 1 7 E 1 7 F 2 7 G 2 7 H 3 4 5 6 ABDHEFCG * * #include <iostream> #include <cstdio>using na    Mespace std; #define MaxVer 10int Visited[maxver];typedef Char elemtype;//next to the node typedef struct node{int num; struct node *next;}        slink;//first knot points Group typedef struct{struct{Elemtype vertex;    Slink *first;    }ve[maxver]; int Vex,edge,tag;}    adjlist;//using a simple structure to build the adjacency table of the diagram void Cregraph (adjlist *g,int n,int m) {g->vex=n;    g->tag=m;    int e=0;    Slink *s,*p,*q;        for (int i=0;i<n;i++) {g->ve[i].vertex= ' A ' +i;    g->ve[i].first=null;    } elemtype x, y;    printf ("Please Input the Edge x-->y:");    scanf ("%c%c", &x,&y);        while (x!= ' &&y!= ') {e++; s=(Slink *) malloc (sizeof (slink));        s->num=y-' A ';            if (g->ve[x-' a '].first==null) {g->ve[x-' a '].first=s;        s->next=null;            } else{p=g->ve[x-' A '].first;                if (p->num>s->num) {s->next=p;            g->ve[x-' A '].first=s;                } else{q=p->next;                    while (Q!=null&&q->num<s->num) {p=q;                q=q->next;                } p->next=s;            s->next=q; }} if (!            G->tag) {s= (slink *) malloc (sizeof (slink));            s->num=x-' A ';            if (g->ve[y-' a '].first==null) {g->ve[y-' a '].first=s;s->next=null;}                else{p=g->ve[y-' A '].first; if (p->num>s->num) {s->next=p;                g->ve[y-' A '].first=s;}                  else{  q=p->next;                    while (Q!=null&&q->num<s->num) {p=q;q=q->next;}                    p->next=s;                s->next=q;        }}} GetChar ();    scanf ("%c%c", &x,&y); } g->edge=e;}    The algorithm for outputting graphs represented by adjacency table void list (Adjlist *g) {slink *p;        for (int i=0;i<g->vex;i++) {p=g->ve[i].first;        printf ("%c", G->ve[i].vertex);            while (p) {printf ("%3d", p->num);        p=p->next;    } printf ("\ n");    }}void Dfs (adjlist *g,int v) {visited[v]=1;    printf ("%c", G->ve[v].vertex);    Slink *p;    p=g->ve[v].first;        while (p) {if (!visited[p->num]) DFS (g,p->num);    p=p->next;    }}void dfsgraph (adjlist *g) {memset (visited,0,sizeof (visited)); for (int i=0;i<g->vex;i++) if (!visited[i]) DFS (g,i);}    int main () {adjlist *g;    g= (Adjlist *) malloc (sizeof (adjlist));    int n,m;scanf ("%d%d", &n,&m);    GetChar ();    Cregraph (G,N,M);    List (G);    Dfsgraph (G);    printf ("\ n"); return 0;}

DFS Traversal of adjacency tables

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