add cjk character support

beamerthemeSimple.sty

@@ -19,6 +19,9 @@
 \RequirePackage{subcaption}
 \RequirePackage{amsmath}
 \RequirePackage{amsthm}
+\RequirePackage[utf8]{inputenc}
+\usepackage{CJKutf8}
+\def\zh#1{\begin{CJK}{UTF8}{gbsn}#1\end{CJK}}
 
 % copied from one of UIUC courses by Chandra Chekuri. I can't find the exact link now...https://courses.grainger.illinois.edu/cs598cci/sp2020/
 \def\begin@lg{\begin{minipage}{1in}\begin{tabbing}

main.tex

@@ -1,9 +1,8 @@
 \documentclass{beamer}
 
-\author{Yu Cong}
 \title[template example]{Minimizing the Sum of Piecewise Linear Convex Functions}
 \date{\today}
-
+\author{\texorpdfstring{\zh{丛宇}}{Yu Cong}}
 % \AtBeginSection[]{
 %     \frame{\frametitle{Outline}\tableofcontents[currentsection, 
 %     subsectionstyle=show/show/shaded]}
@@ -11,7 +10,6 @@
     
 \usetheme{Simple}
 \usepackage{algo}
-% \useoutertheme{tree}
     
 \begin{document}
 \begin{frame}[plain]