题解 | #取近似值#
取近似值
https://www.nowcoder.com/practice/3ab09737afb645cc82c35d56a5ce802a
纯字符串处理
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
String input = bf.readLine();
String[] splArr = input.split("\\.");
if (Integer.valueOf(splArr[1]) >= Math.pow(10,splArr[1].length()-1) * 5) {
System.out.println(Integer.valueOf(splArr[0]) + 1);
} else {
System.out.println(Integer.valueOf(splArr[0]));
}
}
}
