use C$++$ to create cpp file for following hpp file and read the instructions very carefully.

int releaseCreaturesBelowLevel$($ int levlo $=0)$;

int releaseCreaturesOfCategory$($const std::string& cater$=$ "ALL"$)$;

$/**$

@param : An integer representing the level threshold of the creatures to be removed from the Cavern, with default value $0$

@post : Removes all creatures from the Cavern whose level is less than the given level. If no level is given, removes all creatures from the Cavern. Ignore negative input.

@return : The number of creatures removed from the Cavern

$*/$

releaseCreaturesBelowLevel

$/**$

@param : A reference to a string representing a creature Category with a value in $["$UNKNOWN$",$ "UNDEAD", "MYSTICAL", "ALIEN"$],$ or default value "ALL" if no category is given

@post : Removes all creatures from the Cavern whose category matches the given category. If no category is given, removes all creatures from the Cavern.

@return : The number of creatures removed from the Cavern

NOTE: no pre$-$processing of the input string necessary, only uppercase input will match. If the input string does not match one of the expected category values, do not remove any creatures.

$*/$

releaseCreaturesOfCategory