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銆€銆€typedef struct glistnode
銆€銆€{int tag;
銆€銆€struct glistnode *next;
銆€銆€union{char data;
銆€銆€struct{struct glistnode *hp,*tp;}ptr;
銆€銆€}val;
銆€銆€}*glist,gnode;
銆€銆€glist reverse(p)
銆€銆€glist p;
銆€銆€{glist q,h,t,s;
銆€銆€if(p==NULL) q=NULL;
銆€銆€else
銆€銆€{if(1) { q=(glist)malloc(sizeof(gnode)); q->tag=0;
銆€銆€q->val.data=p->val.data; }
銆€銆€else {(2)
銆€銆€if (3)
銆€銆€{t=reverse(p->val.ptr.tp); s=t;
銆€銆€while(s->val.ptr.tp!=NULL) s=s->val.ptr.tp;
銆€銆€s->val.ptr.tp=(glist)malloc(sizeof(gnode));
銆€銆€s=s->val.ptr.tp;s->tag=1;s->val.ptr.tp=NULL;
銆€銆€s->val.ptr.hp=h; (4) __ }
銆€銆€else {q=(glist)malloc(sizeof(gnode));q->tag=1;
銆€銆€q->val.ptr.tp=NULL; (5) ; }
銆€銆€}
銆€銆€}
銆€銆€return(q);
銆€銆€}
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銆€銆€f(LS)=