1 #include<iostream>
2 using namespace std;
3 int main()
4 {
5 int N,a,b,c,i,n,sum=0;
6 cin>>N;cout<<endl;
7
8 for(i=0;i<N;i++)
9 {
10 cin>>a>>b;cout<<endl;
11
12 sum+=b;
13 }
14
15 c=sum/N;
16 cout<<c<<endl;
17
18
19 }
1 #include<iostream>
2 using namespace std;
3 class Mammal
4 {
5 private:
6 int itsAge;
7 int itsWeight;
8 public:
9 Mammal(int a,int b)
10 {
11 itsAge=a;
12 itsWeight=b;
13 }
14 void setweight(int weight)
15 {
16 itsWeight=weight;
17 }
18 void getweight()
19 {
20 cout<<itsWeight<<endl;
21 }
22 void getage()
23 {
24 cout<<itsAge<<endl;
25 }
26 };
27 class Dog:public Mammal
28 {
29 private:
30 int pinzhong;
31 public:
32 Dog(int a,int b,int c):Mammal(a,b)
33 {
34 pinzhong=c;
35 }
36 void getpinzhong()
37 {
38 cout<<pinzhong<<endl;
39 }
40 void yuyan()
41 {
42 cout<<"wangwangwang"<<endl;
43 Mammal::getweight();
44 Mammal::getage();
45 }
46 };
47 int main()
48 {
49 Dog d(1,10,2);
50 cout<<"年龄：";
51 d.getage();
52 cout<<"体重：";
53 d.getweight();
54 cout<<"品种：";
55 d.getpinzhong();
56 d.yuyan();
57 }
1 #include<iostream>
2 using namespace std;
3 class Base0{
4 public:
5 int var0;
6 void fun0(){cout<<"Member of Base0"<<endl;
7 }
8 };
9 class Base1:public Base0{
10 public:
11 int var1;
12 };
13 class Base2:public Base0{
14 public:int var2;
15 };
16 class Derived:public Base1,public Base2{
17 public:
18 int var;
19 void fun(){
20 cout<<"Member of Derived"<<endl;}
21 };
22 int main()
23 {
24 Derived d;
25 d.Base1::var0=2;
26 d.Base1::fun0();
27 d.Base2::var0=3;
28 d.Base2::fun0();
29 return 0;
30 }
31
32
33 #include<iostream>
34 using namespace std;
35 class Base1{
36 public:
37 int var;
38 void fun(){cout<<"Member of Base1"<<endl;}
39 };
40 class Base2{
41 public:
42 int var;
43 void fun(){cout<<"Member of Base2"<<endl;}
44 };
45 class Derived:public Base1,public Base2{
46 public:
47 int var;
48 void fun(){cout<<"Member of Derived"<<endl;}
49 };
50 int main()
51 {
52 Derived d;
53 Derived*p=&d;
54 d.var=1;
