2592117_ac_171ms_328k.cc

北大大牛代码 1240道题的原代码 超级权威

#include<iostream>
using namespace std;
double pi = 3.14159265358;
int main()
{
	double n, m;
	while(cin >> m >> n)
	{
		if(n == 0 && m == 0)
			break;
		double tmp, x;
		if(n < m)
		{
			tmp = n;
			n = m;
			m = tmp;
		}
		double R = m / pi;
		double v1 = (n - R) * m * m / (4 * pi);
		double v2;
		x = n / (1 + pi);
		if(x  < m) 
			v2 = m * x * x * pi / 4; 
		else
			v2 = m * m * m * pi / 4;
		if(v1 > v2)
			printf("%.3lf\n", v1);
		else 
			printf("%.3lf\n", v2);
	}
	return 0;
}