http://poj.org/problem?id=2405 //* @author ������<hongxp11@163.com> import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); while(true) { int D = in.nextInt(); int V = in.nextInt(); if(D==0 && V==0) break; //double v1 = (d * d * d * Math.PI / 4 - v); double d1 = Math.pow(D*D*D-6*V/Math.PI,1.0/3); System.out.printf("%.3f%n", d1); } } }
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