POJ 1005 I Think I Need a Houseboat 水题

//POJ 1005
#include <iostream>
#include <cmath>
using namespace std;

int main()
{
int caseNum;
float x, y;
int n;
cin >> caseNum;
for (int i = 1; i <= caseNum; i++)
{
cin >> x >> y;
n = ceil((x*x+y*y)*3.1415/100);
cout << "Property "<<i<<": This property will begin eroding in year "<<n<<"."<< endl;
}
cout << "END OF OUTPUT." <<endl;
//    system("pause");
return 0;
}