Memos\documentclass{article}\usepackage{listings}\usepackage{xcolor}\definecolor{codegray}{rgb}{0.5,0.5,0.5}\definecolor{codepurple}{rgb}{0.58,0,0.82}\definecolor{backcolour}{rgb}{0.95,0.95,0.92}\lstdefinestyle{mystyle}{ backgroundcolor=\color{backcolour}, commentstyle=\color{codegray}, keywordstyle=\color{blue}, numberstyle=\tiny\color{codegray}, stringstyle=\color{codepurple}, basicstyle=\ttfamily\footnotesize, breakatwhitespace=false, breaklines=true, captionpos=b, keepspaces=true, numbers=left, numbersep=5pt, showspaces=false, showstringspaces=false, showtabs=false, tabsize=2}\lstset{style=mystyle}\usepackage{needspace}\usepackage{arxiv}\usepackage{amsmath}\usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage{hyperref} \usepackage{url} \usepackage