C++第五次作业

C++第五次作业3.7.#include<iostream.h>#include<time.h>class Date{public:Date();Date(int,int,int);void print1();void print2();private:int year;int month;int day;int hour;int minute;int second;};Date::Date(){tm *temptm;time_t temptime;temptime=time(0);temptm=localtime(&temptime);year=1992,month=6,day=14;hour=temptm->tm_hour;minute=temptm->tm_min;second=temptm->tm_sec;}Date::Date(int xyear,int xmonth,int xday){year=xyear;month=xmonth;day=xday;tm *temptm;time_t temptime;temptime=time(0);temptm=localtime(&temptime);hour=temptm->tm_hour;minute=temptm->tm_min;second=temptm->tm_sec;}void Date::print1(){cout<<"The Date is:"<<month<<"/"<<day<<' '<<year<<endl;cout<<hour<<':'<<minute<<':'<<second<<endl;}void Date::print2(){cout<<"The date is"<<year<<' '<<month<<' '<<day<<endl;cout<<hour<<':'<<minute<<':'<<second<<endl;}void main(){Date a,b(2009,5,10);a.print1();b.print2();}3.8#include<iostream.h>#include<assert.h>#include<windows.h>typedef struct listnode{char c;struct listnode *next;}listnode;listnode *p,*temp;class List{public:List();void insertlist();void deletelist();int isempty();void printlist();void instructions();private:listnode *head;};List::List(){head=new listnode;assert(head!=NULL);head->next=NULL;}void List::insertlist(){char c;cout<<"input the char you want to insert"<<endl;cin>>c;p=new listnode;assert(p!=NULL);p->c=c;temp=head->next;head->next=p;p->next=temp;}void List::deletelist(){char c;cout<<"input the char you want to delete"<<endl;cin>>c;p=head->next;while(p->next!=NULL&&p->next->c!=c)p=p->next;if(p->next==NULL)cout<<"can't find "<<c<<" in the list"<<endl;else{temp=p->next;p->next=p->next->next;delete temp;}}int List::isempty(){if(head->next==NULL)return 1;elsereturn 0;}void List::printlist(){p=head;cout<<"The list:"<<endl;while(p->next!=NULL){cout<<p->next->c<<' ';p=p->next;}cout<<endl;}void List::instructions(){cout<<"1:insertlist 2:deletelist 3:printlist 4:exit"<<endl; }void main(){List a;int d;do{system("cls");a.instructions();cin>>d;switch(d){case 1:system("cls"),a.insertlist();break;case 2:system("cls"),a.deletelist();break;case 3:system("cls"),a.printlist();system("pause");break;}}while(d!=4);}3.9#include<iostream.h>#include<assert.h>#include<windows.h>typedef struct queuenode{char c;struct queuenode *next;}queuenode;queuenode *p,*temp;class Queue{public:Queue();void enqueue();void dequeue(char *);int isempty();void printqueue();void instructions();private:queuenode *head,*tail;};Queue::Queue(){head=new queuenode;assert(head!=NULL);head->next=NULL;tail=head;}void Queue::enqueue(){char c;cout<<"input the char you want to insert"<<endl;cin>>c;p=new queuenode;assert(p!=NULL);p->c=c;p->next=NULL;tail->next=p;tail=p;}void Queue::dequeue(char *c){if(Queue::isempty())cout<<"The queue has no element"<<endl;else if(head->next==tail){*c=head->next->c;delete head->next;tail=head;}else{temp=head->next;*c=temp->c;head->next=temp->next;delete temp;}}int Queue::isempty(){if(head==tail)return 1;elsereturn 0;}void Queue::printqueue(){p=head;cout<<"The queue:"<<endl;while(p->next!=NULL){cout<<p->next->c<<' ';p=p->next;}cout<<endl;}void Queue::instructions(){cout<<"1:enqueue 2:dequeue 3:printqueue 4:exit"<<endl; }void main(){Queue a;int d;char c;do{system("cls");a.instructions();cin>>d;switch(d){case 1:system("cls"),a.enqueue();break;case 2:system("cls"),a.dequeue(&c);cout<<c<<" is the element which out of the Queue"<<endl;system("pause");break;case 3:system("cls"),a.printqueue();system("pause");break;}}while(d!=4);}信息安全一班张巍20070830126。