% TeX root = ../main.tex
\begin{algorithm}
    \SetNoline
    \LinesNotNumbered 
    $x = u$\;
    \lWhile{$2 \leq x \leq 3$}{
        $x = x+1 \oplus_\frac{1}{2} x = x$\;
    }
    \lWhile{$y \geq 0$}{
        $y = y-1 \oplus_\frac{1}{2} y = y$\;
    }
\end{algorithm}

% TeX root = ../main.tex
\begin{algorithm}
    \SetNoline
    \LinesNotNumbered 
    $x = u$\;
    \lIf {$1 \leq x \leq 3$}{$x = x + 1$\;}
    \lWhile{$2 \leq x \leq 3$}{ $x = x + 1$\; }
    \lWhile{$y \geq 0$}{ $y = y + 1$\; }
\end{algorithm}

% TeX root = ../main.tex
\begin{algorithm}
    \SetNoline
    \LinesNotNumbered 
    $x = u$\;
    \lWhile{$1 \leq x \leq 3$}{ $x = x + 1$\; }
    \lWhile{$y \geq 0$}{ $y = y - 1$\; }
\end{algorithm}