please give a good explanation for your codes

* Return 1 if ptr points to an element within the specified intArray, o otherwise. * Pointing anywhere in the array is fair game, ptr does not have to * point to the beginning of an element. Check the spec for examples if you are * confused about what this method is determining. * size is the size of intArray in number of ints. Can assume size != 0. * Operators / and % and loops are NOT allowed. * * ALLOWED : * Pointer operators: *, & * Binary integer operators: -, +, *, >, ==, Unary integer operators: !, - Shorthand operators based on the above: ex. , !, 1, % Unary integer operators: */ int withinArray(int * intArray, int size, int *ptr) { // Your code here return }