题解 | #取近似值#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNext()) { // 注意 while 处理多个 case
            String a = in.next();
            String ad = a.substring(a.indexOf("."),a.length());
            ad = "0"+ ad;
            double b = Double.valueOf(ad);
            if(b>=0.5){
                String aa = a.substring(0,a.indexOf("."));
                int c = Integer.valueOf(aa)+1;
                System.out.println(c);
            }else{
                String ac = a.substring(0,a.indexOf("."));
                int cc = Integer.valueOf(ac);
                System.out.println(cc);
            }
        }
    }
}