《完美C++》编程练习1.2苏打水的用量

#include<iostream>
using namespace std;
int main()
{
    double kill_mouse_amount,mouse_weight,diet_weight;
    cout<<"please input kill_mouse_amount: ";
    cin>>kill_mouse_amount;
    cout<<"please input mouse_weight: ";
    cin>>mouse_weight;
    cout<<"please input diet_weight: ";
    cin>>diet_weight;
    const double Concentration=0.001;
    cout<<"You must drink suda at "<<diet_weight*kill_mouse_amount/mouse_weight/0.001<<"kgs"<<endl;
    system("pause");
}