#ifndef MGR#define MGRclass arraymgr{ int total_elements,max_elements; int * thearray;public: arraymgr(int); ~arraymgr(); bool addelement(int); bool getelement(int,int &); bool deleteelement(int); bool findelement(int,int &); void showelements(); int getsize();};#endif#ifndef a#define a#include"mgr.h"#include<iostream>using namespace std;arraymgr::arraymgr(int num){ max_elements=num; total_elements=0; thearray=new int [max_elements];}arraymgr::~arraymgr(){ delete [] thearray;}bool arraymgr::addelement(int num2){ if(total_elements>=max_elements-1) return false; else thearray[total_elements++]=num2; return true;}bool arraymgr::getelement(int position,int& element){if(position>total_elements||position<0)return false;elseelement=thearray[position];return true;}bool arraymgr::deleteelement(int position){ if(position>total_elements||position<0) return false; else { for(int i=position;i<=total_elements-1;i++) thearray[i]=thearray[i+1]; total_elements--; } return true;}bool arraymgr::findelement(int position,int &element){if(position>total_elements||position<0) return false;else element=thearray[position];return true;}void arraymgr::showelements(){ cout<<endl; for(int i=0;i<total_elements;i++) cout<<thearray[i]<<" "; cout<<endl;}int arraymgr::getsize(){ return total_elements;}#endif#ifndef b#define b#include"mgr.h"#include"a.h"#include<iostream>using namespace std;class applause{ arraymgr* arraybase; int menu(); void add(); void remove(); void retrieve(); void find(); void list(); void size();public: applause(); void run();};#endif#ifndef c#define c#include"b.h"#include<iostream>using namespace std;#define max 10applause::applause(){ arraybase=new arraymgr(max);}void applause::run(){ int choice=menu(); while(choice!=7) { switch(choice) { case 1: add(); break; case 2: remove(); break; case 3: retrieve(); break; case 4: find(); break; case 5: list(); break; case 6: size(); break; } choice=menu(); }}int applause::menu(){ int choice; cout<<"1.add a element."<<endl; cout<<"2.remove a element."<<endl; cout<<"3.retrive an item by its' position in the structure."<<endl; cout<<"4.find a element."<<endl; cout<<"5.show the elements of the list."<<endl; cout<<"6.show the size of the list."<<endl; cout<<"7.exit."<<endl; cin>>choice; return choice;}void applause::add(){ int value; cout<<endl<<"Enter a new element:"; cin>>value; bool result=arraybase->addelement(value); if(result) cout<<endl<<"element added successfully."<<endl; else cout<<endl<<"failture to add a new element to the list."<<endl;}void applause::remove(){ int position; cout<<endl<<"please input the element deleted position: "; cin>>position; bool result=arraybase->deleteelement(position); if(result) cout<<endl<<"delete the element successfully."<<endl; else cout<<endl<<"failture to delete the element."<<endl;}void applause::retrieve(){ int position,value; cout<<endl<<"Enter the the element's postion:"; cin>>position; bool result=arraybase->getelement(position,value); if(result) cout<<endl<<"the element is:"<<value<<endl; else cout<<endl<<"cannot get the element due to the position error."<<endl;}void applause::find(){ int value,pos; cout<<endl<<"please input the element:"; cin>>value; bool result=arraybase->findelement(value,pos); if(result) cout<<endl<<"the elem"<<value<<"at "<<pos<<endl; else cout<<endl<<"cannot find the elem in the list."<<endl;}void applause::list(){ arraybase->showelements();}void applause::size(){ cout<<endl<<"there are "<<arraybase->getsize() <<" elements int the list."<<endl;}#endif #include"mgr.h"#include"a.h"#include"b.h"#include"c.h"#include<iostream>using namespace std;int main(){ applause* theapp=new applause(); theapp->run(); return 0;}
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