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begin{figure}[H]
begin{center}
lstset{language=C}          % Set your language (you can change the language
 for each code-block optionally)
begin{lstlisting}[frame=single]  % Start your code-block

 for(int i=0;i++;i<10)

end{lstlisting}
caption{The for loop in c++}
label{code_for}
end{center}
end{figure}

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This is the text before the figures.

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