120. Understanding arrays.

 #include<stdio.h>

//int i,a[5]={1,2,3,4,5};

//int a[]={1,2,3,4,5};

int i,d,a[5];

void main()

{

        printf("%d\n",d=sizeof(a)/sizeof(a[0]));

 

        for(i=0;i<d;i++)

                printf("%d ",a[i]);

 

        printf("\n");

 

        for(i=d-1;i>=0;i--)

                printf("%d ",a[i]);

 

        printf("\n");

}