C$++$

Given that $1$ kilometer $=1000$ meters, cast integer numMeters to a double so the statement calculates numKilometers using implicit conversion.

Ex: If the input is $3117,$ then the output is:

$3\mathrm{.}12$ kilometers

int main$()\{$

const int METERS$\_$PER$\_$KILOMETER $=1000$;

int numMeters;

double numKilometers;

cin $>>$ numMeters;

numKilometers $=/*$ Your code goes here $*/$ METERS$\_$PER$\_$KILOMETER;

cout $<<$ fixed $<<$ setprecision$(2)<<$ numKilometers $<<"$ kilometers" $<<$ endl;

return $0$;

$\}$