i dont undrstand this array

i am trying to self teach, but i dont understand this and i hope someone that is kind enought to explain this to me.

Code:

#include <stdio.h>
#include <stdio.h>
#include <conio.h>
int main()

{
int a[3]= {11,22}, b[]={44,55,66}, i;
double x[2],y[10];

printf("a[0]=&#37;2d,  a[1]=%2d,   a[2]=%2d  \n"
       "b[0]=%2d,  b[1]=%2d,   b[2]=%2d  \n\n",
        a[0],a[1], a[2] ,b[0], b[1],b[2]);

printf("please enter two real numbers\n");
scanf("%lf %lf",&x[0], &x[1]);
printf("x[0] = %.1lf    x[1] = %.1lf\n\n", x[0], x[1]);

for (i=0;i<10;i++)
      {
      y[i]= i*100.0;
      printf("y[%1d]=%.2lf\n", i, y[i]);
      }
      
      getch();
}

Well it's not going to compile. You've got an n\n", x[0] hanging out loose, and your first printf isn't finished. Your scanf on the x's is wrong (they need to both be %lf, not %1f and not %f). Once you get it running, the program explains itself (that's what all the printf's are for).