Help me. Some thing is wrong with my quick sort. Help is appreciated

#include
#include

int* quicksort(int a[],int start,int end)
{
int i = start;
int j = end;
int pivot = rand()%(end-start+1);
if(a[start]
start++;
if(a[end]>a[pivot])
end--;
printf("num to swap %d and %d\n",a[start],a[end]);
if(start
{
int temp = a[start];
a[end]=a[start];
a[start] = temp;
quicksort(a,i,(i+j)/2);
quicksort(a,((i+j)/2)+1,j);
printf("array is %d\n",a[0]);
}
else
return a;
}

int main()
{
int A[5] = {34,564,78,9,2};
int *B = quicksort(A,0,4);
printf("%d\n",*(B+1));
return 0;
}