题解 | #取近似值#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        
        float num = in.nextFloat();
        num *= 10;
        int n = (int)num;
        if(n % 10 >= 5){
            n = n/10 + 1;
        }else{ n /= 10;}

        System.out.print(n);
    }
}