题解 | #取近似值#

将浮点数的小数部分和整数部分分离，然后根据小数部分来判断四舍五入的结果

import java.util.*;
public class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()){
            double target = sc.nextFloat();
            int res = (int)target;
            target = target - res;
            System.out.println(res += target >= 0.5?1:0);
        }
    }
}