题解 | #取近似值#

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main{
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String str;
        while((str = reader.readLine()) != null) {
            double item = Double.parseDouble(str);
            int itemInt =  (int)item;
            double result = item - itemInt;
            if(result >= 0.5d) {
                System.out.println(itemInt + 1);
            }else{
                System.out.println(itemInt);
            }
        }
        reader.close();
    }
}