题目描述

blablabla

样例

#include <bits/stdc++.h>
using namespace std;
int main() 
{
    int x, y;
    double price[6]={0,4,4.5,5,2,1.5};
    scanf("%d %d",&x,&y);
    printf("Total: R$ %.2f",price[x]*y);
    return 0;
}