java 代码

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

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String input = br.readLine();
        double a = Double.parseDouble(input);
        double result = Math.cbrt(a);
        // 创建一个DecimalFormat对象，格式化为保留6位小数
        DecimalFormat df = new DecimalFormat("0.000000");
        System.out.println(df.format(result));

    }
}