我自己调试的时候输出是对的呀

[codec]#include <stdio.h>
int main()
{
int n,ye=0,a[12],k;
double save;
for(n=1;n<=12;n++)
    {
    scanf("%d",&a[n]);
    k=ye+300-a[n];
    if(k<0) 
        {
        printf("-%d",n);return 0;
        }
    ye=k%100;
    save=save+k-ye;
    }
printf("%.0f",save*1.2+ye);
return 0;
}

[/codec]