documentclass{article}

usepackage{listings}
usepackage[listings]{examplep}% this doesn't work
%usepackage{examplep}% this does


begin{document}
pagestyle{empty}

% This lstlisting has its own caption
begin{lstlisting}[language=C++,caption={Caption of lstlisting},label=cod:c]
#include<iostream>

int main{
  std::cout << "Hello LaTeXn";
}
end{lstlisting}

% The lstlisting caption is not shown here
begin{WBoth}
begin{lstlisting}[language=C++,caption={Caption of lstlisting}]
#include<iostream>

int main{
  std::cout << "Hello LaTeXn";
}
end{lstlisting}
end{WBoth}
PexaShowSource{}
PexaShowSample{}

end{document}