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();

        // int i = (int)Math.round(d) ;
        int i = d-(int)d >0.5?(int)d+1:(int)d;

        System.out.println(i);
    }
}