Problem F: 汽车、客车、货车
Time Limit: 1 Sec Memory Limit: 128 MB
Submit: 1302 Solved: 686
[Submit][Status][Web Board]
Description
定义Vehicle类，包括：
1. 一个int类型属性num，表示汽车的*数量。
2. 构造函数、析构函数，输出如样例所示的信息。
定义Bus类，是Vehicle类的子类，包括：
1. 一个int类型属性guest，表示客车可乘坐的人数。
2. 构造函数、析构函数，输出如样例所示的信息。
定义Truck类，是Vehicle类的子类，包括：
1. 一个int类型属性weight，表示货车可载荷的货物重量。
2. 构造函数、析构函数，输出如样例所示的信息。
Input
输入有多行，每行一个测试用例，每行包括1个正整数（车的*数量）、1个字符b或者t（b、t分别表示客车、货车）、1个正整数（可乘坐的人数或可承载的货物重量）。
Output
见样例。
Sample Input
4 b 408 t 15
Sample Output
Vehicle has 4 wheels is created.Bus which can carry 40 persons is created.Bus which can carry 40 persons is erased.Vehicle has 4 wheels is erased.Vehicle has 8 wheels is created.Truck which can carry 15 tons goods is created.Truck which can carry 15 tons goods is created.Vehicle has 8 wheels is erased.
HINT
Append Code
#include<bits/stdc++.h>
using namespace std;
class Vehicle
{
private:
int num;
public:
Vehicle(int n):num(n){cout<<"Vehicle has "<<num<<" wheels is created."<<endl;}
~Vehicle(){cout<<"Vehicle has "<<num<<" wheels is erased."<<endl;}
};
class Bus: public Vehicle
{
private:
int guest;
public:
Bus(int n,int g):guest(g),Vehicle(n){cout<<"Bus which can carry "<<guest<<" persons is created."<<endl;cout<<"Bus which can carry "<<guest<<" persons is erased."<<endl;}
~Bus(){}
};
class Truck: public Vehicle
{
private:
int weight;
public:
Truck(int n,int w):weight(w),Vehicle(n){cout<<"Truck which can carry "<<weight<<" tons goods is created."<<endl;cout<<"Truck which can carry "<<weight<<" tons goods is created."<<endl;}
~Truck(){cout<<"Truck which can carry "<<weight<<" tons goods is created."<<endl;}
};
int main()
{
int w, g;
char t;
Vehicle *veh;
while (cin>>w>>t>>g)
{
if (t == 'b')
{
veh = new Bus(w, g);
}
else
{
veh = new Truck(w, g);
}
delete veh;
}
return 0;
}