[UVa] 10297 - Beavergnaw

題目網址: https://goo.gl/3O23Y7

題意:
(from luckycat)


解法:
簡單的體積計算。

TAG: Math,

注意:

程式碼:

	/**
	* Tittle: 10297 - Beavergnaw
	* Author: Cheng-Shih, Wong
	* Date: 2015/06/11
	*/
	// include files
	#include <bits/stdc++.h>
	using namespace std;
	// definitions
	#define FOR(i,a,b) for( int i=(a),_n=(b); i<=_n; ++i )
	#define clr(x,v) memset( x, v, sizeof(x) )
	#define PI acos(-1.0)
	// declarations
	double D, V;
	// functions
	// main function
	int main( void )
	{
	// input
	while( scanf( "%lf%lf", &D, &V )==2 && (D||V) ) {
	printf( "%.3lf\n", pow( D*D*D-(6*V)/PI, 1.0/3.0 ) );
	}
	return 0;
	}

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