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| #include<cstdio> #include<iostream> using namespace std; const int maxSize=100010; typedef struct{ int data[maxSize]; int length; }SqList; typedef struct LNode{ int data; struct LNode *next; }LNode,*LinkList;
typedef struct DLNode{ int data; struct DLNode *prior; struct DLNode *next; }DLNode,*DLinkList;
int insertElem(Sqlist &L,int index,int x){ if(index<0||index>length-1||index==maxSize) return 0; for(int i=L.length-1;i>=index;i--){ L.data[i+1]=L.data[i]; } L.data[index]=x; L.length++; return 1; }
int deleteElem(Sqlist &L,int index){ if(index<0||index>length-1||index==maxSize) return 0; for(int i=index;i<L.length-1;i++){ L.data[i]=L.data[i+1]; } L.length--; return 1; }
int findElem(Sqlist L,int x){ for(int i=0;i<=L.length-1;i++){ if(L.data==x){ return i; } } return -1; }
LinkList List_HeadInsert(Linklist &L){ LNode *s; int x; L=(LinkedList)malloc(sizeof(LNode)); L->next=NULL; cin>>x; while(x!=9999){ s=(LNode)malloc(sizeof(LNode)); s->data=x; s->next=L->next; L->next=s; cin>>x; } return L; }
LinkList List_TailInsert(Linklist &L){ int x; L=(LinkedList)malloc(sizeof(LNode)); L->next=NULL; LNode *s; LNode *r=L; while(x!=9999){ s=(LNode)malloc(sizeof(LNode)); s->data=x; r->next=s; r=s; cin>>x; } r->next=NULL; return L; }
LNode *GetElem(LinkList L,int index){ if(index<0) return NULL; int cnt=0; LNode *p=L; while(p!=NULL&&cnt<index){ p=p->next; cnt++; } return p; }
LNode *LocaledElem(LinkList L,Elemtype e){ LNode *p=L->next; while(p!=NULL&&p->data!=e){ p=p->next; } return p; }
int InsertElem(LinkList &L,LNode s,int index){ if(index<0) return 0; int cnt=0; LNode *p=L->next; while(p!=NULL&&cnt<index-1){ p=p->next; cnt++; } s->next=p->next; p->next=s; return 1; }
int DeleteElem(LinkList &L,int index){ if(index<0) return 0; int cnt=0; LNode *p=L->next; while(p!=NULL&&cnt<index-1){ p=p->next; cnt++; } LNode *q; q=p->next; p->next=q->next; free(p); return 1; }
void Delete_LinkList(LinkList &L,int key){ LNode *p=L,*q=L->next; while(p!=NULL&&q->data!=key){ p=q; q=q->next; } if(q->data==key){ p->next=q->next; free(q); }else{ cout<<"所要删除的结点不存在\n"; } }
void db(DLinkList &L){
s->next=p->next; s->prior=p; p->next->prior=s; p->next=s;
p->next=q->next; q->next->prior=p; free(q); }
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