Write test case in c++ for this program.

void reverse(int a[], int len);

then you may write the following code to demonstrate your solution: int main(){

const int len1 = 5; int a1[len1];

// initialize the array using random numbers or array initializationlist show(a1, len1); //print the contents of a1 before the reverse reverse(a1,len1); show(a1, len1); // print the contents of a1 after the reverse

...

}