题解 | #取近似值#

import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.nextLine();
        double val = Double.valueOf("0." + str.split("\\.")[1]);
        int sign;
        if (val >= 0.5) {
            sign = 1;
        } else {
            sign = 0;
        }
        System.out.println(Integer.valueOf(str.split("\\.")[0]) + sign);
    }
}