题解 | #牛牛的字符菱形#

import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner scan = new Scanner(System.in);
        float a = scan.nextFloat();
        if(a>0){
            System.out.println((int)(a+0.5));
        }else if(a<0){
            System.out.println((int)(a-0.5));
        }else{
            System.out.println((int)(a));
        }