0143895吴彬第一次c++作业

7. #include <iostream>using namespace std;int main(){ int max(int a,int b,int c=0); int a,b,c; cin>>a>>b>>c; cout<<"max(a,b,c)="<<a<<endl; cout<<"max=(a,b)="<<a<<endl; return 0;}int max(int a,int b,int c){  if(a<b) a=b;  if(a<c) a=c;  return a;} 8.#include <iostream>using namespace std;int main(){ void swap(int &,int &); int a,b; cin>>a>>b; if(a<b) swap(a,b); cout<<a<<” ”<<b<<endl; return 0;}void swap(int &a1,int &b1){ int c; c=a1; a1=b1; } 9.#include <iostream>using namespace std;int main(){ void sort(int &,int &,int &); int a,b,c; cin>>a>>b>>c; sort(a,b,c); cout<<a<<” ”<<b<<” ”<<c; return 0;}void sort(int &c,int &d,int &e){  void swap(int &,int &);  if(c>d) swap(c,d);  if(c>e) swap(c,e);  if(d>e) swap(d,e);}void swap(int &x,int &y){ int t; t=x; x=y; y=t;} 10. #include <iostream>#include <string>using namespace std;int main(){ string s1="Thank",s2="you"; s1=s1+s2; cout<<"The new string is:"<<s1<<endl; return 0;} 11. #include <iostream>#include <string>using namespace std;int main(){string s;int i,n;char t;cin>>s;n=s.size();for(i=0;i<n/2;i++){ t=s[i]; s[i]=s[n-i-1]; s[n-i-1]=t;}cout<<s<<endl;return 0;}  12.#include <string>using namespace std;int main(){ int i; string str[5]={"China","American","Japan","Korea","Y"}; void sort(string[]); sort(str); for(i=0;i<5;i++) cout<<str[i]<<""<<endl; return 0;}void sort(string s[]){ int i,j; string t; for(j=0;j<5;j++) for(i=0;i<5-j;i++) if(s[i]>s[i+1]) {t=s[i];s[i]=s[i+1];s[i+1]=t;}} 13. #include <iostream>using namespace std;int main(){long a[5]={10100,-123567.1198783,-165654,3456};int b[5]={1,9,8,3,4};float c[5]={2.4,1.5,3.6,2.8,4.8};void sort(long[]);sort(a);void sort(int[]);sort(b);void sort(float[]);sort(c);return 0;}void sort(long a[]){  int i,j;  long t;  for(j=0;j<5;j++)  for(i=0;i<5-j;i++)  if(a[i]>a[i+1])  {   t=a[i];   a[i]=a[i+1];   a[i+1]=t;  }  cout<<"The sorted numbers:"<<endl;  for(i=0;i<5;i++)  cout<<a[i]<<" "<<endl;}void sort(int b[]){  int i,j;  int t;  for(j=0;j<5;j++)  for(i=0;i<5-j;i++)  if(b[i]>b[i+1])  {   t=b[i];   b[i]=b[i+1];   b[i+1]=t;  }  cout<<"The sorted numbers:"<<endl;  for(i=0;i<5;i++)  cout<<b[i]<<" "<<endl;}void sort(float c[]){  int i,j;  float t;  for(j=0;j<5;j++)  for(i=0;i<5-j;i++)  if(c[i]>c[i+1])  {   t=c[i];   c[i]=c[i+1];   c[i+1]=t;  }  cout<<"The sorted numbers:"<<endl;  for(i=0;i<5;i++)  cout<<c[i]<<" "<<endl;} 14.#include <iostream>using namespace std;template <typename T>void sort(T []){ int a[5]; int i,j,min; T t; for(i=0;i<5;i++) {       min=i;   for(j=i+1;j<5;j++)   if(a[min]>a[j])   min=j;   t=a[i];   a[i]=a[min];   a[min]=t;    }}int main(){int i;    long a[5]={10100,-123567.1198783,-165654,3456};int b[5]={1,9,8,3,4};float c[5]={2.4,1.5,3.6,2.8,4.8};sort(a);    for(i=0;i<5;i++)cout<<a[i]<<" "<<endl;sort(b);    for(i=0;i<5;i++)cout<<b[i]<<" "<<endl;    sort(c);    for(i=0;i<5;i++)    cout<<c[i]<<" "<<endl;    return 0;}  2. #include <iostream>using namespace std;class Time{public:void set_time(void){  cin>>hour>>minute>>sec;}void show_time(void){ cout<<hour<<":"<<minute<<":"<<sec;}private:int hour,minute,sec;};Time t;int main(){ t.set_time(); t.show_time(); return 0; } 3. #include <iostream>using namespace std;class Time{public:void set_time(void);void show_time(void);private:int hour,minute,sec;};void Time :: set_time(void){  cin>>hour>>minute>>sec;}void Time :: show_time(void){ cout<<hour<<":"<<minute<<":"<<sec;}Time t;int main(){ t.set_time(); t.show_time(); return 0; } 4. #include <iostream>#include <string>using namespace std;class Student{public:void display();void set_value();private:int num;    string name;char sex;};int main(){ Student stud; stud.set_value(); stud.display(); return 0;}void Student :: display(){ cout<<"nunm:"<<num<<endl; cout<<"name:"<<name<<endl; cout<<"sex:"<<sex<<endl;}void Student :: set_value(){ cin>>num>>name>>sex;}   6. #include <iostream>using namespace std;class  Cuboid{public:         void get_value();         void volume();         void display();private:     float length,width,height,vol;};void Cuboid ::get_value(){ cin>>length>>width>>height;};void Cuboid ::volume(){ vol=length*width*height;}void Cuboid ::display(){ cout<<vol<<endl;}int main(){ Cuboid c1,c2,c3; c1.get_value(); c1.volume(); cout<<"The volume of c1 is:"; c1.display(); c2.get_value(); c2.volume(); cout<<"The volume of c2 is:"; c2.display(); c3.get_value(); c3.volume(); cout<<"The volume of c3 is:"; c3.display(); return 0;}