LaTex pseudocode example with minipage.

pseudocode

\documentclass{article}
\usepackage{algpseudocode,algorithm}

\begin{document}

\begin{minipage}[t]{0.45\textwidth}
	\begin{algorithmic}
		\Function{Absoluto}{x}
			\If	{$x < 0$}
				\State \Return $-x$
			\Else
				\State \Return $x$
			\EndIf
		\EndFunction
	\end{algorithmic}
\end{minipage}
\begin{minipage}[t]{0.45\textwidth}
	\begin{algorithmic}
		\For{$i \gets 1, n$}
			\State {$A[i] \gets i + 1$}
		\EndFor
		\While {$i < n$}
			\State $i \gets i + 1$
		\EndWhile
	\end{algorithmic}
\end{minipage}

\end{document}