Sorry for my french,
Could somebody help me to find where the error is with "Missing number, treated as zero " in the code below please???
\documentclass[a4paper]{article}
\usepackage[final]{pdfpages}
\usepackage{multido}
% m page's number for each student (ici 7 pages by student)
% n total number of student
% p = n*m total number for all student equal to n*m
\newcounter{m}
\setcounter{m}{7}
\newcounter{n}
\setcounter{n}{5}
\begin{document}
\multido{\i=0+1}{n}{
\includepdf[pages={1-(m-2)},nup=1x2,landscape,signature=36]{DOC-sujet.pdf}
\includepdf[pages={(m-1)- m},nup=1x2,landscape,signature=4]{DOC-sujet.pdf}
\addtocounter{m}{7}
}
\end{document}