Explain the effect of the second declaration in each one of the following sets of declarations. Indicate which, if any, are illegal

(a)

    int calc(int, int);
    int calc(const int, const int);  // Same with first line, top-level `const` are ignored

(b)

 int get();
double get();  // Error, differ only on return types

(c)

int *reset(int *);
    double *reset(double *);  // OK, define an overloaded function