题解 | #四舍五入#

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double d= scanner.nextDouble();

        //write your code here......
        int i;
        if (d % (int)d < 0.5) 
            i = (int)d;
        else
            i = (int)d + 1;

        System.out.println(i);
    }
}