把最后的一个算式改成`b=150*0,4463+250*0.4663+(a-400)*0.5663`
by Hyacinths @ 2023-10-18 17:59:23
```cpp
#include<iostream>
#include<cstdio>
using namespace std;
int main(){
double a;
double b,c;
cin>>a;
if(a<=150) b=a*0.4463;
if(a>150&&a<=400) b=150*0.4463+(a-150)*0.4663;
if(a>=401) b=150*0,4463+250*0.4663+(a-400)*0.5663;
printf("%.1lf",b);
return 0;
}
```
by Hyacinths @ 2023-10-18 18:01:04
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by Hyacinths @ 2023-10-18 18:03:05