```
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int a;
double n;
cin>>a;
if(a<=150) n=0.4463*a;
if(a>150&&a<=400) n=0.4463*150+(a-150.0)*0.4663;
if(a>=400) n=0.4463*150+250*0.4663+(a-400.0)*0.5663;
cout<<fixed<<setprecision(1)<<n;
return 0;
}···
by masiyudr @ 2023-09-04 20:06:58
a<=400應該是
by IMPOSTORrrrrrr @ 2023-09-04 20:45:53