Höheren Programmcode in LaTex-Pseudocode konvertieren

/*
\caption{Function f}
\label{algo:f}
*/


double f(int x, char y){

    x = x + 1;

    if(x < 0){
        return 0.9;
    }else{
        return 0.1;
    }
}

\begin{algorithm}
\caption{Function f}
\label{alg:f}
\begin{algorithmic}[1]
\item[]  ~\\


Input:\\
$x\gets$ \textit{Beschreibung von Input-Variable x}\\
$y\gets$ \textit{Beschreibung von Input-Variable y}\\[1.5ex]


\STATE $x\gets x+1$


\IF {$ x < 0 $}
    \RETURN $0.9$    
\ELSE
    \RETURN $0.9$
\ENDIF


\end{algorithmic}


\end{algorithm}