> 题号1005
> #define PAI 3.1
> #include "stdio.h"
> int main()
> { int i,N;
>   float a,b;
>   double c[20],d;
>   scanf("%d",&N);
>   for(i=0;i<N;i++)
>   {scanf("%f%f",&a,&b);
>    c[i]=a*a+b*b;
>   }
>   for(i=1;i<=N;i++)
>    {d=c[i-1]*PAI/100+1; 
>     printf("Property %d: This property will begin eroding in year %.0lf.\n",i,d);
>    }
>    printf("END OF OUTPUT.\n");
>   return 0;
> } 
> 
> 返回结果是：Wrong Answer