\usepackage[margin=1cm]{geometry}
\pagestyle{empty}

\usepackage[magyar]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}

\usepackage{amssymb,amsmath,datetime,paralist}

\usepackage[]{probsoln}
\renewcommand{\solutionname}{Megoldás}
% \ClearUsedFile{db-previous.prb}
\SetUsedFileName{db-used.prb}
\ExcludePreviousFile{db-previous.prb}
