题目描述
blablabla
样例
blablabla
C++ 代码
#include <bits/stdc++.h>
using namespace std;
int main()
{
double num, res;
cin >> num;
if(num <= 2000.0) cout<< "Isento" << endl;
else if(num <= 3000.0 && num >= 2000.01){
res = (num - 2000.0) * 0.08;
printf("R$ %.2lf\n", res);
}
else if(num >= 3000.01 && num <= 4500.00){
res = (3000 - 2000.0) * 0.08 + (num - 3000.0) * 0.18;
printf("R$ %.2lf\n", res);
}
else if(num > 4500.00){
res = (3000 - 2000.0) * 0.08 + (4500 - 3000.0) * 0.18 + (num - 4500.0) * 0.28;
printf("R$ %.2lf\n", res);
}
return 0;
}