浙大ACM-ZOJ 1049

#include<iostream>
#include<math.h>
using namespace std;

double PI = 3.1415;
int N, mRlt; //N是例子个数，mRlt是计算结果
double x_value, y_value, scale;
int i;

void count(){
double r;
r = x_value*x_value + y_value*y_value;
scale = PI*r;
mRlt = (int)ceil(scale/100);
}

int main(){
cin >> N;
for (i = 1; i <= N; i++){
cin >>  x_value >> y_value; //输入x，y坐标
count();	//实际进行计算的函数

cout << "Property " << i <<": This property will begin eroding in year ";
cout << mRlt << "." << endl;
}
cout << "END OF OUTPUT." << endl ;

return 0;
}