#include<stdio.h>
#include<math.h>
const PI 3.1415926
main()
{
double x, y,radious,area;
int year;
int n,i = 1;
while(n--) //计算n多次
{
scanf("%lf%lf", &x, &y);
radious = x * x + y * y;
area = PI * radious /2.0;
year = (int)ceil(area / 50.0);
printf("This property will begin eroding in year %d.\n", year);
}
printf("End of output.\n");
}
#include<math.h>
const PI 3.1415926
main()
{
double x, y,radious,area;
int year;
int n,i = 1;
while(n--) //计算n多次
{
scanf("%lf%lf", &x, &y);
radious = x * x + y * y;
area = PI * radious /2.0;
year = (int)ceil(area / 50.0);
printf("This property will begin eroding in year %d.\n", year);
}
printf("End of output.\n");
}