问题标题: 酷町堂：1744

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
using namespace std;
double a=3.00,b=2.50,c=4.50,d=9.50;
int main()
{
    int n;
    cin>>n;
    if(n==1)
    {
        cout<<"[1] apples\n[2] pears\n[3] oranges\n[4] grapes\n[0] Exit\nprice=";
        printf("%.1f",a);
    }
    else if(n==2)
    {
        cout<<"[1] apples\n[2] pears\n[3] oranges\n[4] grapes\n[0] Exit\nprice=";
        printf("%.1f",b);
    }
    else if(n==3)
    {
        cout<<"[1] apples\n[2] pears\n[3] oranges\n[4] grapes\n[0] Exit\nprice=";
        printf("%.1f",c);
    }
    else if(n==4)
    {
        cout<<"[1] apples\n[2] pears\n[3] oranges\n[4] grapes\n[0] Exit\nprice=";
        printf("%.1f",d);
    }
    else if(n==0)
    {
        cout<<"";
    }
    else
    {
        cout<<"[1] apples\n[2] pears\n[3] oranges\n[4] grapes\n[0] Exit\nprice=";
        cout<<0;
    }
    return 0;
}