C++ 解法, 执行用时: 3ms, 内存消耗: 392KB, 提交时间: 2022-06-16

#include<bits/stdc++.h>
using namespace std;
class phone{
	// write your code here......
	friend class myphone   ;
	private:
		int price;
	public:
		phone(int x){
			price=x;
		}
    
}; 
class myphone{
	private:
		phone a;
	public:
		myphone(int x):a(x){
		}
		int getprice(){
			return a.price;
		}
};
int main(){
	int p;
	cin>>p;
	myphone a(p);
	cout<<a.getprice();
	return 0;
}

C++ 解法, 执行用时: 3ms, 内存消耗: 396KB, 提交时间: 2022-06-22

#include<iostream>
using namespace std;
class phone{
	// write your code here......
	friend class myphone;
	private:
		int price;
	public:
		phone(int x){
			price=x;
		}
}; 
class myphone{
	private:
		phone a;
	public:
		myphone(int x):a(x){
		}
		int getprice(){
			return a.price;
		}
};
int main(){
	int p;
	cin>>p;
	myphone a(p);
	cout<<a.getprice();
	return 0;
}

C++ 解法, 执行用时: 3ms, 内存消耗: 396KB, 提交时间: 2022-06-14

#include<bits/stdc++.h>
using namespace std;
class phone{
	// write your code here......
	 // 友元类
    friend class myphone;
    
	private:
		int price;
	public:
		phone(int x){
			price=x;
		}
}; 
class myphone{
	private:
		phone a;
	public:
   
		myphone(int x):a(x){
		}
		int getprice(){
			return a.price;
		}
};
int main(){
	int p;
	cin>>p;
	myphone a(p);
	cout<<a.getprice();
	return 0;
}

C++ 解法, 执行用时: 3ms, 内存消耗: 396KB, 提交时间: 2022-06-10

#include<bits/stdc++.h>
using namespace std;
class phone{
	
	
	private:
    friend class myphone;
		int price;
	public:
		phone(int x){
			price=x;
		}
}; 
class myphone{
	private:
		phone a;
	public:
		myphone(int x):a(x){
		}
		int getprice(){
			return a.price;
		}
};
int main(){
	int p;
	cin>>p;
	myphone a(p);
	cout<<a.getprice();
	return 0;
}

C++ 解法, 执行用时: 3ms, 内存消耗: 396KB, 提交时间: 2022-06-02

#include<bits/stdc++.h>
using namespace std;
class phone{
private:
    friend class myphone;
    int price;
public:
    phone(int x){
        price=x;
    }
}; 
class myphone{
private:
    phone a;
public:
    myphone(int x):a(x){
    }
    int getprice(){
    return a.price;
}
};
int main(){
	int p;
	cin>>p;
	myphone a(p);
	cout<<a.getprice();
	return 0;
}