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consider the following example:

\documentclass[a4paper,final]{report}

\usepackage{cleveref}
\usepackage{algorithmic}

\Crefname{ALC@unique}{Line}{Lines}

\begin{document}

Tests: 

\begin{algorithmic}[1]
\REQUIRE $x$ and $y$
\ENSURE $|x + y|$
\STATE $z = x + y$
\IF{$z<0$}
\RETURN $-z$\label{l1}
\ELSE
\RETURN $z$
\ENDIF
\end{algorithmic}

cref\{l1\}: \cref{l1}, ref\{l1\}: \ref{l1}

\begin{algorithmic}[1]
\REQUIRE $x$ and $y$
\ENSURE $|x - y|$
\STATE $z = x - y$
\IF{$z<0$}
\RETURN $-z$\label{l2}
\ELSE
\RETURN $z$
\ENDIF
\end{algorithmic}

cref\{l2\}: \cref{l2}, ref\{l2\}: \ref{l2}

\end{document}

This will output (apart from the pseudocode):

cref{l1}: line 3, ref{l1} 3

cref{l2}: line 9, ref{l2} 3

As you will notice, \cref{l2} returns an incorrect line number. Any suggestions on how to fix this?

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1 Answer 1

up vote 4 down vote accepted

cleveref only claims to support a limited number of packages and algorithmic is not on that list. However, adding \setcounter{ALC@unique}{0} after the beginning of your algorithmic enviroments fixes the problem, i.e., writing

\begin{algorithmic}[1]
\setcounter{ALC@unique}{0}
\REQUIRE $x$ and $y$

etc.

I suggest you wrap this up in a new environment, so that you do not have to write it each time.

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1  
Actually, cleveref 0.18.5 claims to support the algorithms package, which ships the algorithmic package. But you are correct - it is currently not supported, but will be fixed with 0.18.6 (in development). For now only algorithmicx is supported. –  Karalga Aug 6 '12 at 13:52

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