ZOJ 1049 判断坐标点

http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=49

水题

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

bool judge(double x,double y,double r)
{
          return x*x+y*y < r*r;
}

int main()
{
          int t;
          cin>>t;
          for(int i = 1;i<=t;i++)
          {
                    double m,n;
                    cin>>m>>n;
                    int y;
                    cout<<"Property "<<i<<": ";
                    for(int y = 1;;y++)
                    {
                              int S = 100*y;
                              double r = sqrt((double)S/3.1415926);
                              if(judge(m,n,r))
                              {
                                        cout<<"This property will begin eroding in year "<<y<<"."<<endl;
                                        break;
                              }
                    }
          }
          cout<<"END OF OUTPUT."<<endl;
}