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ep7_8_1.h
Package: C_exercice_code.rar [view]
Upload User: wxcui2006
Upload Date: 2022-07-12
Package Size: 1274k
Code Size: 2k
Category:
source in ebook
Development Platform:
Visual C++
- #include<cassert>
- #include<iostream>
- using namespace std;
- template<typename T>class seqlist{
- int last; //顺序表最大下标
- T *elements; //动态建立的数组
- int maxSize; //顺序表最大允纳的元素个数
- public:
- seqlist(int=20); //顺序表如不指定大小,设为20元素
- ~seqlist(){delete[] elements;}
- void Push_back(const T &data); //顺序表添加一个元素
- T Pop_back(); //顺序表弹出一个元素,top--
- T GetElem(int i); //取数据,last不变
- void seqlistFull(); //顺序表加倍
- void MakeEmpty(){last= -1;} //清空顺序表
- bool IsEmpty() const{return last== -1;} //判顺序表空
- bool IsFull() const{return last==maxSize-1;} //判顺序表满
- void Printseqlist(); //输出顺序表内所有数据
- };
- template<typename T> seqlist<T>::seqlist(int maxs){
- maxSize=maxs;
- last=-1;
- elements=new T [maxSize]; //建立栈空间
- assert(elements!=0); //分配不成功结束程序
- }
- template<typename T> void seqlist<T>::Printseqlist(){
- for(int i=0;i<=last;i++) cout<<elements[i]<<'t';
- cout<<endl;
- }
- template<typename T> void seqlist<T>::Push_back(const T &data){
- if(IsFull())
- {
- cout<<"顺序表满"<<endl;
- seqlistFull(); //顺序表满则顺序表加倍
- }
- elements[++last]=data; //顺序表下标先加1,元素再进顺序表
- }
- template<typename T> T seqlist<T>::Pop_back(){
- assert(!IsEmpty()); //顺序表已空则不能弹出,退出程序
- return elements[last--]; //返回顺序表最后一个元素,同时last减1
- }
- template<typename T> T seqlist<T>::GetElem(int i){
- assert(i<=last&&i>=0); //超出顺序表有效范围则出错,退出程序
- return elements[i]; //返回顺序表指定元素
- }
- template<typename T> void seqlist<T>::seqlistFull(){//顺序表加倍
- T * el=elements;
- int i=maxSize,j;
- maxSize*=2;
- elements=new T [maxSize]; //建立顺序表空间
- assert(elements!=0); //分配不成功结束程序
- for(j=0;j<i;j++) elements[j]=el[j];
- delete [] el;
- }