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template struct Binnode { T data;

Binnode *prior, *next; };

bool Unknown (Binnode *first) { Binnode *p,*q;

p=first->next; q=first->prior;

while(p!=q && p->prior!=q)

if(p->data==q->data) {

p=p->next; q=q->prior; }

else return 0; return 1; }

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template

LinkList:: LinkList( int n) { first=new Node;

Node *s; T x;

first->next=NULL;; for (int i=0; i>x;

s=new Node; s->data=x;

s->next=first->next; first->next=s; } }

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template

void BiTree::Unknown (BiNode *root) { const int MaxSize = 100; int front = 0; int rear = 0;

BiNode* Q[MaxSize]; BiNode* q; if (root==NULL) return; else{ Q[rear++] = root; while (front != rear) { q = Q[front++]; cout<data<<\ if (q->lchild != NULL) Q[rear++] = q->lchild; if (q->rchild != NULL) Q[rear++] = q->rchild; } } }

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void AE(Stack& S)

{

InitStack(S); Push(S,10); Push(S,20); Push(S,30);

int x=Pop(S)+2*Pop(S); Push(S,x);

int i,a[4]={7,9,15,18};

for(i=0;i<4;i++) Push(S,a[i]);

while(!StackEmpty(S)) cout<

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while(p&& p£­>next£­>data!=x){ q=p;p=p£­>next; }

if(p){

q£­>next=p£­>next; free(p); }

}

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void F1(Linklist &L){

p=L¡únext; pre=p;

while(p){ if(p¡údata

pre=p; p=p¡únext; }

printf(pre¡údata);

if(pre¡únext && pre¡údata%2==0) {

p=pre¡únext,

pre¡únext=p¡únext;free(p);

}

}

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