#include <stdio.h>
#include <stdlib.h>
/*
Q1: return the invers, mid, average, sum of array using pointers
Q2: print the adress of elements of array using function
Q3: return the adress of elements of array using function
Q4: print the adress of elements of array using function
Q5: return the adress of elements of array using function
*/


int* array_invers(int *a,int size)
{
    for(int i=0;i<size;i++)
    {
        int temp;
        temp = (*(a+i));
        (*(a+i)) = (*(a+size-1-i));
        (*(a+size-1-i)) = temp;
    }
    return a;
}

int array_average(int *a,int size)
{
    int sum=0;
    float average=0;

    for(int i=0;i<size;i++)
    {
        sum = sum + (*(a+i));
    }

    average = (float)sum / (float)size;


    return average;
}

int array_mid(int *a,int size)
{
    int mid=(*(a+0))+(*(a+size-1));
    return mid;
}

int array_sum(int *a,int size)
{
    int sum=0;

    for(int i=0;i<size;i++)
    {
        sum = sum + (*(a+i));
    }


    return sum;
}

void array_printer(int a[],int size)
{
    for(int i=0;i<size;i++)
    {
        printf("%d ",a[i]);
    }
}

int main()
{
    int myarray1[]={1,2,3,4,5,6,7,8,9};
    int *ptr1;
    ptr1=&myarray1;
    int size=sizeof(myarray1)/sizeof(myarray1[0]);

    array_invers(myarray1,size);
    array_printer(myarray1,size);
   // printf("%f ",array_average(myarray1,size));
   // printf("%d ",array_mid(myarray1,size));
   // printf("%d ",array_sum(myarray1,size));



    return 0;
}