解题思路:
注意事项:
参考代码:
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner=new Scanner(System.in);
double t=scanner.nextDouble();
double m=scanner.nextDouble();
if(t<=40)
System.out.printf("%.2f",t*m);
else if(t>40&&t<=50)
System.out.printf("%.2f",40*m+(t-40)*m*1.5);
else
System.out.printf("%.2f",40*m+10*m*1.5+(t-50)*m*2);
}
}
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