POJ 1005 I Think I Need a Houseboat GCC编译

#include <stdio.h>#include <string.h>int main(){float IM=3.1415;int NUM;scanf("%d",&NUM);float ax[NUM];float ay[NUM];memset(ax,0,sizeof(ax));memset(ay,0,sizeof(ay));int i;for(i=0;i<NUM;i++){scanf("%f %f",&ax[i],&ay[i]);}float sq[NUM];memset(sq,0,sizeof(sq));for(i=0;i<NUM;i++){sq[i]=IM*(ax[i]*ax[i]+ay[i]*ay[i])/2;}for(i=0;i<NUM;i++){printf("Property %d: This property will begin eroding in year %d.\n",i+1,(int)(sq[i]/50)+1);}printf("END OF OUTPUT.");return 0;}