Examine the values of length and area once this program executes.

#include

using namespace std;

int main$()\{$

double length $=5\mathrm{.}0$;

double area $=25\mathrm{.}0$;

double $*$ptr;

ptr $=$ &length;

$*$ptr $=10\mathrm{.}0$;

area $=*$ptr $**$ptr;

cout $<<$ "Area $="<<$ area $<<$ endl;

cout $<<$ "Length $="<<$ length $<<$ endl;

return $0$;

$\}$

What are those two final values for Area and Length? Now "length $="$ is not part of that program so explain how the result was actually obtained since the value of length has changed. c$++$