问题 1658: 蓝桥杯算法训练VIP-薪水计算

import java.util.Scanner;

public class Prog1658 {

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

double n = scan.nextDouble();

double m = scan.nextDouble();

double sum = 0;

if (n <= 40 && n >= 0) {

sum = n * m;

} else if (n >= 40 && n <= 50) {

sum = (n - 40) * m * 1.5 + 40 * m;

} else {

sum = (n - 50) * m * 2 + 10 * m * 1.5 + 40 * m;

}

String s = String.format("%.2f", sum);

System.out.println(s);

}

}