#include<stdio.h>
#include<stdlib.h>

#define n 100.0
#define PI 3.14159265

int main(void)
{
   int i, N, *year;
   double x, y, r2, area;
    
    do{
   	scanf("%d", &N);
   	fflush(stdin);
	} while(N<=0);
   year = (int *)malloc(N*sizeof(int));
   if(!year)
   {
		puts("error");
		return 1;
	}
   for(i=0; i<N; i++)
   {
		do{
			scanf("%lf%lf", &x, &y);
			fflush(stdin);
		} while(x<0. || y<0. || x==0. && y==0.);
		r2 = x*x + y*y;
		area = PI*r2;
		year[i] = (int)(area/n)+1;	
	}
	for(i=0; i<N; i++)
		printf("Property %d: This property will begin eroding in year %d.\n", i+1, year[i]);
	puts("END OF OUTPUT.");
   system("pause");
   return 0;   	
}   

• Re:大家看看为什么这样不行 (830) adba 2007-06-21 23:34:31
  • Re:大家看看为什么这样不行 (121) adba 2007-06-21 23:35:33