# include "iostream"
using namespace std;
void main()
{
const int pi = 3.1415926;
double r, h, v;
int n;
cout << "输入半径,深度" << endl;
cin >> r >> h;
v = pi*r*r*h;
n = 20000 / v;
cout << n << endl;
}
慕田峪3750655
wwpbjing
KXFT
相关分类