Ex6_9.cpp
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上传日期:2022-07-12
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- //【例6.9】直接选择排序,作为Orderedlist<T,size>类的成员函数。
- #include<iostream>
- #include<string>
- using namespace std;
- template <typename T,int size>class Orderedlist{
- int maxsize;
- int last;
- T slist[size];
- public:
- Orderedlist(){last=-1;maxsize=size;}
- void SelectSort();
- bool Insert(T & elem,int i);
- void print();
- // 无关成员函数省略
- };//再次指出分号不可少
- template <typename T,int size> bool Orderedlist<T,size>::Insert(T & elem ,int i){
- int j;
- if (i<0||i>last+1||last==maxsize-1) return false;
- else{
- last++;
- for (j=last;j>i;j--) slist[j]=slist[j-1];
- slist[i]=elem;
- return true;
- }
- }
- template <typename T,int size> void Orderedlist<T,size>::print(){
- int i;
- for(i=0;i<=last;i++){
- slist[i].show();
- if(i%5==4) cout<<endl;
- }
- cout<<endl;
- }
- template <typename T,int size> void Orderedlist<T,size>::SelectSort(){
- int i,j,k;
- T temp;
- for(i=0;i<last;i++){
- k=i;
- temp=slist[i];
- for(j=i;j<=last;j++)
- if(slist[j]<temp){
- k=j;
- temp=slist[j];
- }
- if(k!=i){
- temp=slist[i];
- slist[i]=slist[k];
- slist[k]=temp;
- }
- }
- }
- class student{
- int id ; //学号
- string name; // 姓名
- char sex; // 性别
- int age; // 年龄
- string address; //家庭地址
- float eng, phy, math, electron; //英语,物理,数学和电子学成绩
- public:
- student(){}
- student(int,string,char,int,string,float,float,float,float);
- bool operator<(student ele){return id<ele.id;}
- void show(){cout<<id<<'t'<<name<<'t'<<sex<<'t'<<age<<'t'
- <<eng<<'t'<<phy<<'t'<<math<<'t'<<electron<<endl;}
- };
- student::student(int i,string n,char s,int a,string add,float en,float ph,float ma,float ele){
- id=i; //学号
- name=n; // 姓名
- sex=s; // 性别
- age=a; // 年龄
- address=add; //家庭地址
- eng=en; phy=ph; math=ma, electron=ele; //英语,物理,数学和电子学成绩
- }
- int main(){
- const int h=4;
- int i;
- Orderedlist<student,100> ordlist;
- student n[h]={student(6004327,"张菲",'m',19,"北京路58号",80,85,90,78),
- student(6004121,"关雨",'w',19,"天津路64号",88,75,91,68),
- student(6004118,"刘蓓",'w',18,"上海路37号",78,95,81,88),
- student(6004219,"赵昀",'m',18,"重庆路95号",78,95,81,88),
- };
- for(i=0;i<h;i++) ordlist.Insert(n[i],i); //建立顺序表
- cout<<"未排序表:"<<endl;
- ordlist.print();
- ordlist.SelectSort();
- cout<<"已排序表:"<<endl;
- ordlist.print();
- return 0;
- }