新人求教那儿错了？？

代码复制上来，

/*rain.c--针对若干年的降水量数据，计算年平均降水总量、年降水均量，以及月降水均量*/
#include <stdio.h>
#define MONTHS 12 //一年的月份数
#define YEARS 5 //降水量数据的年数
int main(void)
{
//把数组初始化为2000年到2004年的降水量数据
const float rain[YEARS][MONTHS]={
{4.3,4.3,4.3,3.0,2.0,1.2,0.2,0.2,0.4,2.4,3.5,6.6},
{8.5,8.2,1.2,1.6,2.4,0.0,5.2,0.9,0.3,0.9,1.4,7.3},
{9.1,8.5,6.7,4.3,2.1,0.8,0.2,0.2,1.1,2.3,6,1,8.4},
{7.2,9.9,8.4,3.3,1.2,0.8,0.4,0.0,0.6,1.7,4.3,6.2},
{7.6,5.6,3.8,2.8,3.8,0.2,0.0,0.0,0.0,1.3,2.6,5.2}
};
int year,month;
float subtot,total;
printf(" YEAR RAINFALL (inches) \n");
for (year=0,total=0;year<YEARS;year++)
{
for (month=0,subtot=0;month<MONTHS;month++)
subtot+=rain[year][month];
printf("%5d %15.1f\n",2000+year,subtot);
total+=subtot; //所有年度的总降水量
}
printf("\nThe yearly average is %.1f inches.\n\n",total/YEARS);
printf("MONTHLY AVERAGES: \n\n");
printf(" Jan Feb Mar Apr May Jun Jul Aug Sep Oct ");
printf(" Nov Dec\n");
for (month=0;month<MONTHS;month++)
{ //对于每个月，各年该月份的总降水量
for (year=0,subtot=0;year<YEARS;year++)
subtot+=rain[year][month];
printf("%4.1f ",subtot/YEARS);
}
printf("\n");
return 0;
}