题解 | 计算商品打折结算金额
#include <iostream>
#include <iomanip>
using namespace std;
int main() {
double price;
cin >> price;
double cost = 0.0;
// write your code here.......
if(price>=5000)
{
cost=price*0.6;
}
else if(price>=2000)
{
cost=price*0.7;
}
else if(price>=500)
{
cost=price*0.8;
}
else if (price>=100) {
cost=price*0.9;
}
cout << setiosflags(ios::fixed) << setprecision(1) << cost << endl;
return 0;
}
