#include <iostream>
#include <cmath>
using namespace std;

#define PI 3.1415926

int main(){
	int n;
	double x = 0;
	double y = 0;
	double s = 0;

	cin >> n;
	for(int i = 0;i < n;i++){
		cin >> x >> y;
		s = PI * (x*x + y*y) / 2;
		cout << "Property "<< i+1 <<": This property will begin eroding in year "<< ceil(s/50) <<"."<< endl;
	}
	cout << "END OF OUTPUT."<<endl;
}

• Re:水题~ (2) yingxiang720 2010-08-09 10:52:06