\usepackage{xcolor}%%\usepackage{fontspec}\usepackage[sc]{mathpazo}\usepackage{fontspec}\setmainfont[Ligatures=TeX]{Palatino Linotype}\usepackage{amssymb}\usepackage{amsmath}%\usepackage{menukeys}\definecolor{darkblue}{rgb}{0,0,0.6}\usepackage[colorlinks=true,urlcolor=darkblue,linkcolor=darkblue]{hyperref}\usepackage{soul}\usepackage{marginnote}\usepackage{fontawesome5}%%% for regular expressions and values\newcommand{\ZERO}{\mbox{\bf 0}}\newcommand{\ONE}{\mbox{\bf 1}}\newcommand{\Left}{\textit{Left}}\newcommand{\Right}{\textit{Right}}\newcommand{\Der}{\textit{Der}}\newcommand{\der}{\textit{der}}\newcommand{\Ders}{\textit{Ders}}\newcommand{\ders}{\textit{ders}}\newcommand{\inj}{\textit{inj}}\newcommand{\nullable}{\textit{nullable}}%%% url pointers\newcommand{\hv}[1]{\href{#1}{\faFilm}}\newcommand{\hr}[1]{\href{#1}{\faHandPointRight[regular]}}\newcommand{\here}[1]{\marginnote{\href{#1}{\faHandPointRight[regular]}}}\newcommand{\video}[1]{\marginnote{\href{#1}{\faFilm}}}\newcommand{\alert}{\reversemarginpar\marginpar{\mbox{}\hfill\textcolor{red}{\faExclamationTriangle}}}\newcommand{\dn}{\stackrel{\mbox{\scriptsize def}}{=}}\newcommand{\defn}[1]{\textit{\textbf{#1}}}\newcommand{\dq}[1]{\mbox{\tt{"}}#1\mbox{\tt{"}}}\definecolor{codegray}{gray}{0.9}\makeatletter\def\fnote{\gdef\@thefnmark{}\@footnotetext}\makeatother\newcommand{\HEADER}{{\bf Please submit your solutions via email. Please submit only PDFs! Every solution should be preceeded by the corresponding question text, like:\begin{center}\begin{tabular}{ll}Q$n$: & \ldots a difficult question from me\ldots\\A: & \ldots an answer from you \ldots\\Q$n+1$ & \ldots another difficult question\ldots\\A: & \ldots another brilliant answer from you\ldots\end{tabular}\end{center}\noindent Solutions will only be accepted until 20th December! Please send onlyone homework per email.}\bigskip}\newcommand{\POSTSCRIPT}{{\bf (Optional)} This question is for you to provide regular feedback to me: for examplewhat were the most interesting, least interesting, or confusing parts in this lecture? Any problems with my Scala code? Please feel free to share any other questions or concerns. Also, all mymaterial is \st{crap} imperfect. If you have any suggestions forimprovement, I am very grateful to hear.\medskipIf *you* want to share anything (code, videos, links), you areencouraged to do so. Just drop me an email.} % CW deadlines\def\cwONE{18 October}\def\cwTWO{\textcolor{red}{11 November}} % 8 November\def\cwTHREE{\textcolor{red}{3 December}} %29 November\def\cwFOUR{13 December}\def\cwFIVE{24 January}\def\cwISABELLE{11 December}