In C$++$ please,

here's original Weighted$\_$graph.h

#ifndef WEIGHTED$\_$GRAPH$\_$H

#define WEIGHTED$\_$GRAPH$\_$H

#ifndef nullptr

#define nullptr $0$

#endif

#include

#include

$//$ include whatever classes you want

class Weighted$\_$graph $\{$

private:

$//$ your implementation here

$//$ you can add both private member variables and private member functions

static const double INF;

public:

Weighted$\_$graph$($ int $=50)$;

~Weighted$\_$graph$()$;

int degree$($ int $)$ const;

int edge$\_$count$()$ const;

double adjacent$($ int, int $)$ const;

double distance$($ int, int $)$;

void insert$($ int, int, double $)$;

$//$ Friends

friend std::ostream &operator std::ostream &$,$ Weighted$\_$graph const & $)$;

$\}$;

const double Weighted$\_$graph::INF $=$ std::numeric$\_$limits::infinity$()$;

$//$ Your implementation here

$//$ You can modify this function however you want: it will not be tested

std::ostream &operator std::ostream &out, Weighted$\_$graph const &graph $)\{$

return out;

$\}$

$//$ Is an error showing up in CIS$22$B$.$h or elsewhere?

$//$ Did you forget a closing $\text{'}\}\text{'}?$

#endif