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% !TEX program = xelatex
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\documentclass[dvipsnames,14pt,t,xelatex,aspectratio=169,xcolor={table}]{beamer}
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\usepackage{../styles/slides}
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\usepackage{../styles/mygraphs}
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\usepackage{../styles/langs}
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%%\usepackage{../data}
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\usetikzlibrary{shapes}
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\usepackage[export]{adjustbox}
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\usepackage{tcolorbox}
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\newtcolorbox{mybox}{colback=red!5!white,colframe=red!75!black}
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\newtcolorbox{mybox2}[1]{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,title=#1}
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\newtcolorbox{mybox3}[1]{colback=Cyan!5!white,colframe=Cyan!75!black,fonttitle=\bfseries,title=#1}
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%\setmonofont[Scale=.88]{Consolas}
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%\newfontfamily{\consolas}{Consolas}
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\lstset{language=Scala,
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style=mystyle,
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numbersep=0pt,
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numbers=none,
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xleftmargin=0mm}
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\newcommand{\bl}[1]{\textcolor{blue}{#1}}
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% beamer stuff
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\renewcommand{\slidecaption}{PEP (Scala) 03, King's College London}
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\newcommand{\DOWNarrow}[3]{%
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\onslide<#1>{%
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\end{tikzpicture}}%
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\end{textblock}}
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\begin{document}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[t]
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\frametitle{%
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\begin{tabular}{@ {}c@ {}}
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\\[5mm]
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\hspace{7mm}\huge PEP Scala (\liningnums{3})
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\end{tabular}}
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\normalsize
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\begin{center}
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\begin{tabular}{ll}
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Email: & christian.urban at kcl.ac.uk\\
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%Office: & N\liningnums{7.07} (North Wing, Bush House)\bigskip\\
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Slides \& Code: & KEATS\bigskip\\
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Office Hour: & Fridays 13:00 -- 14:00\\
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Location: & N7.07 (North Wing, Bush House)\bigskip\\
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Pollev: & \texttt{\alert{https://pollev.com/cfltutoratki576}}\\ \\
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%Additionally: & (for Scala) Tuesdays 10:45 -- 11:45\\
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\end{tabular}
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\end{center}
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%\tiny
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%developed since 2004 bv Martin Odersky
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%picture about assignments
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\begin{textblock}{6}(0.5,0.5)
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\includegraphics[scale=0.035]{../pics/assign.jpg}\\[-1mm]
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\end{textblock}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% \begin{frame}[c]
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% \frametitle{Preliminary 6}
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% Raw marks (261 submissions):\bigskip
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% \begin{itemize}
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% \item 3\%: \hspace{4mm}219
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% \item 2\%: \hspace{4mm}19
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% \item 1\%: \hspace{4mm}0
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% \item 0\%: \hspace{4mm}23 \;(4 no submission)
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% \end{itemize}
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% \end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c,fragile]
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\frametitle{Default Arguments}
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\small
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\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-3mm]
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def collatzHelper(n: Int, a: Int = 0) : Int = ...
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collatzHelper(n, 3)
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collatzHelper(n, 0)
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collatzHelper(n) // a = 0
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\end{lstlisting}
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\DOWNarrow{1}{8.3}{3.4}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c,fragile]
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\frametitle{Last Week: Options \& HO Funs.}
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\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-1mm]
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List(7,2,3,4,5,6).find(_ < 4)
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res: Option[Int] = Some(2)
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List(5,6,7,8,9).find(_ < 4)
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res: Option[Int] = None
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List(1,2,3,4,5).map(x => x * x)
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res: List[Int] = List(1, 4, 9, 16, 25)
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\end{lstlisting}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c,fragile]
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\frametitle{Web-Crawler (1)}
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\small
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\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-7mm]
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def get_page(url: String) : String = {
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Try(fromURL(url)("ISO-8859-1").take(10000).mkString)
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.getOrElse { println(s" Problem with: $url"); ""}
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}
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\end{lstlisting}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c,fragile]
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\frametitle{Web-Crawler (2)}
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\small
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\begin{lstlisting}[language=Scala, numbers=none,
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xleftmargin=-7mm, escapeinside={(*@}{@*)}]
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val http_pattern = """(*@\textcolor{codegreen}{"}@*)https?://[\^(*@\textcolor{codegreen}{"}@*)]*(*@\textcolor{codegreen}{"}@*)""".r
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val email_pattern =
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"""([a-z\d\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})""".r
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def unquote(s: String) = s.drop(1).dropRight(1)
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def get_all_URLs(page: String): Set[String] =
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http_pattern.findAllIn(page).map(unquote).toSet
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// returns all URLs in a page
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\end{lstlisting}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c,fragile]
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\frametitle{Web-Crawler (3)}
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\small
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\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-1mm]
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def crawl(url: String, n: Int) : Unit = {
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if (n == 0) ()
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else {
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println(s" Visiting: $n $url")
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val page = get_page(url)
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for (u <- get_all_URLs(page))
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crawl(u, n - 1)
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}
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}
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\end{lstlisting}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c,fragile]
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\frametitle{Email Harvester}
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\small
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\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-3mm]
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def emails(url: String, n: Int) : Set[String] = {
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if (n == 0) Set()
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else {
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println(s" Visiting: $n $url")
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val page = get_page(url)
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val new_emails =
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email_pattern.findAllIn(page).toSet
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new_emails ++
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(for (u <- get_all_URLs(page))
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yield emails(u, n - 1)).flatten
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}
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}
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\end{lstlisting}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c]
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\frametitle{Jumping Towers}
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\begin{center}
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\begin{tikzpicture}[scale=1.3]
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\draw[line width=1mm,cap=round] (0,0) -- (5,0);
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\draw[line width=1mm,cap=round] (0,1) -- (5,1);
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\draw[line width=1mm,cap=round] (0,0) -- (0,1);
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\node at (0.5,0.5) {\textbf{\Large 3}};
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\draw[line width=1mm,cap=round] (1,0) -- (1,1);
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\node at (1.5,0.5) {\textbf{\Large 4}};
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\draw[line width=1mm,cap=round] (2,0) -- (2,1);
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\node at (2.5,0.5) {\textbf{\Large 2}};
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\draw[line width=1mm,cap=round] (3,0) -- (3,1);
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\node at (3.5,0.5) {\textbf{\Large 0}};
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\draw[line width=1mm,cap=round] (4,0) -- (4,1);
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\node at (4.5,0.5) {\textbf{\Large 1}};
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\draw[line width=1mm,cap=round] (5,0) -- (5,1);
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\draw[->,line width=0.5mm,cap=round,out=90,in=90,relative] (0.5,1) to (1.5,1);
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\draw[->,line width=0.5mm,cap=round,out=90,in=90,relative] (0.5,1) to (2.5,1);
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\draw[->,line width=0.5mm,cap=round,out=90,in=90,relative] (0.5,1) to (3.5,1);
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\draw[->,line width=0.5mm,cap=round,out=-90,in=-90,relative] (2.5,0) to (3.5,0);
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\draw[->,line width=0.5mm,cap=round,out=-90,in=-90,relative] (2.5,0) to (4.5,0);
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\draw[->,line width=0.5mm,cap=round,out=90,in=90,relative] (4.5,1) to (5.7,1);
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\node at (5.7, 0.8) {End};
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\end{tikzpicture}
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\end{center}\bigskip
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shortest: 3 $\rightarrow$ 4 $\rightarrow$ End
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c]
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\frametitle{next moves}
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\begin{center}
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\begin{tikzpicture}
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[grow=right,level distance=30mm,child anchor=north,line width=0.5mm]
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\node {$[3,4,2,0,1]$}
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child {node {$[0,1]$}}
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child {node {$[2,0,1]$}
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child {node {$[1]$} child [level distance=13mm] {node {End}}}
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child {node {$[0,1]$}}
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}
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child {node {$[4,2,0,1]$\ldots}};
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\end{tikzpicture}
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\end{center}
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\begin{textblock}{4}(13,12)
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\includegraphics[scale=0.06]{../pics/chess.jpg}
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\end{textblock}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c,fragile]
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\frametitle{Reverse Polish Notation}
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{\Large\bl{$(3 + 1) * (2 + 9)$}}\bigskip
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{\Large$\Rightarrow$}\bigskip
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{\;\;\Large\bl{$3\;\;1\;+\;2\;\;9\;+\;*$}}
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\begin{textblock}{3}(11,4)
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\begin{onlyenv}<2>
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\begin{lstlisting}[language=JVMIS]
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ldc 3
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ldc 1
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iadd
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ldc 2
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ldc 9
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iadd
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imul
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\end{lstlisting}
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\end{onlyenv}
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\end{textblock}
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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% \begin{frame}[c,fragile]
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% \frametitle{Sudoku}
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% A very simple-minded version on 110 problems:\bigskip
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% \begin{itemize}
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% \item 1 core: 800 secs
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% \item 2 cores: 400 secs
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% \item 8 cores: 290 secs
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% \item 18 cores: 142 secs
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% \end{itemize}
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% \end{frame}
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% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% \begin{frame}[t]
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% \begin{center}
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\frametitle{\mbox{}\hspace{40mm}\textbf{Feedback in
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\begin{mybox3}{End-of-year feedback for 6CCS3CFL in 2019}\it\small
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Unequivocally the worst module I've taken on this course. The subject
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matter is fascinating, however the insistence on the use of this
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abomination of a language "Scala" completely ruins it. If you're going
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to teach something as complex as this, use a proper language, not some
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"object oriented functional" abomination. Use C, you know, the
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language that real compilers are written in. I will go to the end of
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the earth to dissuade others from taking this module so long as Scala
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is still being used.\\
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\mbox{}\hfill-- Lone voice in the end-of-year feedback in 2019
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(2023,183)
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(2022,112)
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(2021,98)
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(2020,59)
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(2019,38)
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(2018,20)
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(2016,8)};
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\node[anchor=north, yshift=-10mm] at (mygraph.south) {\small{}Student numbers since the start of the compiler module.};
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\hspace{5mm}2021
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\hspace{5mm}2022
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\begin{minipage}{1.3\textwidth}
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\begin{mybox3}{One comment from this year}\it\small
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I feel like the module's point is to help us experience what it is
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like to program very challenging problems, it's not very realistic
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as in a realistic scenario we would have access to the internet, and
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other people's code and may collaborate. I feel like the point of
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the module is taken away due to how the plagiarism and collusion
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rules are put into place.
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\end{mybox3}
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\begin{minipage}{1.3\textwidth}
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\begin{mybox3}{Another comment from this year}\it\small
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To prepare students for the C++ coursework better, for example introducing recursion and/or backtracking, because that is a big part of the coursework but wasn't even touched upon in the videos
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\end{mybox3}
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\begin{mybox3}{Even another comment from this year}\it\small
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The coursework is too difficult.
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{
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\begin{frame}[c]
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\begin{itemize}
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\item we reduced the amount of work this year and gave more time for C++ CW
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\item we recruited TA's for\bigskip
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installation problems:
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\begin{itemize}
|
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\item Oscar Sjostedt (\texttt{\small{}oscar.sjostedt@kcl.ac.uk})
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\item Nicole Lehchevska (\texttt{\small{}nicole.lehchevska@kcl.ac.uk})\bigskip
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\end{itemize}
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github problems:
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\begin{itemize}
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\item Quan Tran (\texttt{\small{}anh.tran@kcl.ac.uk})\bigskip
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\end{itemize}
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discussion forum / general problems:
|
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\begin{itemize}
|
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\item Ruben Ticehurst-James (\texttt{\small{}ruben.ticehurst-james@kcl.ac.uk})
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\end{itemize}
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\end{itemize}
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\only<2->{
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\begin{textblock}{7}(9, 8)
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\textcolor{red}{\Large\bf Could you
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please spend the next 10 mins to fill
|
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out the end-of-year feedback.}
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\includegraphics[scale=0.035]{thanks.png}
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\end{textblock}}
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}
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\end{document}
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