#include #include usingnamespacestd; classNodepublic: intdata; Node *next; public: Node() next=NULL; Node(inta) data=a; next=NULL; ;classListpublic: Node *head;public: List() head=newNode(); List() Node *p=head-next; while(p) Node *s=p; p=s-next; free(s); free(head); voidinitial() Node *zhen; zhen=head; inti; cini; for(intj=0;js-data; zhen-next=s; zhen=s; s-next=NULL; intgetList_Length() Node *ss; inti=0; ss=head-next; while(ss) i+; ss=ss-next; returni; intsearch(inta) Node *find; find=head-next; if(athis-getList_Length()|a=0) return0; else for(inti=1;inext; returnfind-data; intInsert_List(inta,intb) Node *Insert; Insert=head-next; if(a=1) Node *ss=newNode(b); head-next=ss; ss-next=Insert; return1; if(athis-getList_Length()+1|a1) Insert=head-next; for(inti=0;inext; Node *ss=newNode(b); ss-next=Insert-next; Insert-next=ss; return1; intDelete_List(inta) Node *find; inti; find=head-next; if(a=1) Node *ss; ss=head-next; head-next=ss-next; free(ss); return1; if(athis-getList_Length() return0; elseif(a1) for(i=0;inext; Node *ss; ss=find-next; ss-next=find-next; free(ss); return1; voidDisplay() Node *ss; ss=head-next; while(ss!=NULL) coutdatanext; coutendl; ; intmain() inta,c,i; List list; list.initial(); list.Display(); for(i=0;iac; if(list.Insert_List(a,c)=0) couterrorendl; else list.Display(); for(i=0;ia; if(list.Delete_List(a)=0) couterrorendl; else list.Display(); for(i=0;ia;