WA了#2和#5

#include<iostream>
#include<cstdio>
#include<cmath>
using namespace std;
#define pi 3.14159
int main(){
	double a,_2,_3;
	cin >> a;
	_2 = 150*0.4463;
	_3 = 150*0.4463+250*0.4663;
	if(a<=150)
		printf("%.1lf",a*0.4463) ;
	else
		if(a<=400)
			printf("%.1lf",_2+(a-150)*0.4663);
		else
			printf("%.ilf",_3+(a-400)*0.5663);
	return 0;
}