```cpp
#include<bits/stdc++.h>
using namespace std;
long long n,x,y,z;
long double m;
int main(){
cin>>n;
if(n>150){
m = 150*0.4463;
if(n>400){
m = 250*0.4663+m;
cout<<fixed<<setprecision(1)<<m+(n-400)*0.5663;
}else{
cout<<fixed<<setprecision(1)<<m+(n-150)*0.4663;
}
}else{
cout<<fixed<<setprecision(1)<<n*0.4463;
}
return 0;
}
```
改了的
修了你m*0.0001(why?)
by ToastBread @ 2023-07-09 13:05:25
@[gsc15759915601](/user/978170)
```cpp
#include<bits/stdc++.h>
using namespace std;
long long x,y,z;
double m=0,n;
int main(){
cin>>n;
if(n>150)
{
m = 150*0.4463;
if(n>400)
{
m = 250*0.4663+m;
cout<<fixed<<setprecision(1)<<m+(n-400)*0.5663;
}
else
{
cout<<fixed<<setprecision(1)<<m+(n-150)*0.4663;
}
}
else
{
cout<<fixed<<setprecision(1)<<n*0.4463;
}
return 0;
}
```
你的4663和5663反了
by I_like_LCH @ 2023-07-09 13:07:08
```cpp
#include<bits/stdc++.h>
using namespace std;
long long n,x,y,z;
long double m;
int main(){
cin>>n;
if(n>150){
m = 150*0.4463*0.0001;//为什么*0.0001？
if(n>400){
m = 250*0.4663*0.0001+m;//同上
cout<<fixed<<setprecision(1)<<m+(n-400)*0.4663;
}else{
cout<<fixed<<setprecision(1)<<m+(n-150)*0.5663;
}
}else{
cout<<fixed<<setprecision(1)<<n*0.4463;
}
return 0;
}
```
你的M是底价，应该不*（*了会让结果小很多）
by ToastBread @ 2023-07-09 13:07:56
*0.0001是为了提升精度，不过谢谢二位。
by gsc15759915601 @ 2023-07-09 13:08:44
@[I_like_LCH](/user/724577) 谢谢改正 但不调也能过（
by ToastBread @ 2023-07-09 13:09:04
@[gsc15759915601](/user/978170) 你最后要*回来，注意下
by ToastBread @ 2023-07-09 13:10:50
@[ToastBread](/user/545809) 这数据……
by I_like_LCH @ 2023-07-09 13:11:22
@[I_like_LCH](/user/724577) 数据太水了
by ToastBread @ 2023-07-09 13:12:18
@[ToastBread](/user/545809) 雀食
by I_like_LCH @ 2023-07-09 13:13:38