How to find greatest element of array using functions without arguments?

CODE

How to find greatest element of array using functions without arguments?

//Write a program to find greatest element of array using functions without arguments…

int main()

{

    void gr();

    gr();

}

void gr()

{

    int n,i,a[10],max;

    printf("\n enter N:");

    scanf("%d",&n);

    for(i=0;i<n;i++)

    {

        printf("\n value at a[%d]:",i);

        scanf("%d",&a[i]);

    }

    max=a[0];

    for(i=0;i<n;i++)

    {

        if(max<a[i])

            max=a[i];

    }

    printf("\n greatest element=%d",max);

}

Output:

enter N:5

 value at a[0]:4

 value at a[1]:8

 value at a[2]:5

 value at a[3]:2

 value at a[4]:5

 greatest element=8