[Tex/LaTex] How to split two steps in one algorithm box for LaTeX

Question

How can I split two steps in one algorithm box for LaTeX like below image?

Is it impossible? If possible, please answer me.

Thank you very much.

Answer 1

Perhaps you can use \Statex from algpseudocode to "comment" a step or break:

\documentclass{article}

\usepackage{algorithm,algpseudocode}
\algnewcommand{\And}{\textbf{and}}

\begin{document}

\begin{algorithm}
  \caption{A two-step algorithm}
  \begin{algorithmic}[1]
    \Statex \textit{First step}
    \While{$X\ \And\ Y$}
      \State Statement~1
      \If{$Z$}
        \State Statement~2
      \EndIf
    \EndWhile
    \Statex \textit{Second step}
    \While{$Y\ \And\ X$}
      \State Statement~3
      \If{$Z$}
        \State Statement~4
      \EndIf
    \EndWhile
  \end{algorithmic}
\end{algorithm}

\end{document}