输入样例1:
-1 2
输出样例1:
-1/2=-0.50
输入样例2:
1 -3
输出样例2:
1/(-3)=-0.33
输入样例3:
5 0
输出样例3:
5/0=Error
java
import java.util.*;
class Main{public static void main(String[] args){Scanner sc = new Scanner(System.in);int A = sc.nextInt();int B = sc.nextInt();if(B!=0) {if(B<0){System.out.print(A+"/"+"("+B+")"+"=");}else {System.out.print(A+"/"+B+"=");}System.out.printf("%.2f",(double)A/B);}else {System.out.print(A+"/"+B+"=");System.out.println("Error");}}
}