题解 | 疫情死亡率

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a = in.nextInt();
        int b = in.nextInt();
        float c = (float)b / a  *100;
        System.out.printf("%.3f%%",c);
    }
}