poj: 1005

简单题

  #include <iostream>
  #include <stdio.h>
  #include <string.h>
  #include <stack>
  using namespace std;

  #define PI 3.1415926

  int N;

  int main()
  {
      cin >> N;
      double x, y;
      ; t <= N; ++t) {
         cin >> x >> y;
         ;
         ) {
             /PI;
             if (x*x + y*y < r) break;
             n++;
         }
         cout << "Property " << t << ": This property will begin eroding in year " << n << "." << endl;
      }
      cout << "END OF OUTPUT." << endl;
      ;
  }