#include<iostream>
#include<cmath>
using namespace std;
const double PI=3.141592654;
int main()
{
	int year,n,i;
	double x[1000],y[1000],s[1000],r[1000];
	cin>>n;
	for(i=0;i<n;i++)
	{
		cin>>x[i]>>y[i];
		r[i]=sqrt(x[i]*x[i]+y[i]*y[i]);
		s[i]=(PI*r[i]*r[i])/2;
	}
	
	for(i=0;i<n;i++)
	{
		year=1;
		if(s[i]<50.0)
		{
			cout<<"Property "<<i+1<<" This property will begin eroding in year "
				<<year<<"."<<endl;
		}
		else
		{
			year=2;
			while(s[i]>50*year)
			{
				year++;
			}
			cout<<"Property "<<i+1<<" This property will begin eroding in year "
				<<year<<"."<<endl;
		}
				
	}
	cout<<"END OF OUTPUT."<<endl;
	return 0;
}

• Re:哪个好心人帮忙看下,哪儿有问题???十分谢谢!!! (160) flando 2008-07-25 20:10:43