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\documentclass[dvipsnames,14pt,t,xelatex]{beamer}
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\usepackage{../slides}
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\usepackage{../graphics}
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\usepackage{../langs}
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%%\usepackage{../data}
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\usepackage[export]{adjustbox}
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\hfuzz=220pt
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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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\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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\huge PEP Scala (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: & N7.07 (North Wing, Bush House)\\
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Slides \& Code: & KEATS\medskip\\
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Office Hours: & \alert{next Monday} 11 -- 12 \& 13 -- 14\\
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\end{tabular}
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\end{center}
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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{Marks for CW6 (Part 1 + 2)}
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Raw marks (234 submissions):
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\begin{itemize}
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\item 6\%: \hspace{4mm}163 students
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\item 5\%: \hspace{4mm}29
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\item 4\%: \hspace{4mm}3
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\item 3\%: \hspace{4mm}13
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\item 2\%: \hspace{4mm}3
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\item 1\%: \hspace{4mm}0
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\item 0\%: \hspace{4mm}23
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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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\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-1mm]
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def collatz(n: Long) : Long =
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{
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val toReturn = collatzHelper(n, 0)
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toReturn
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}
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\end{lstlisting}
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\pause
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\bigskip
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\rule{11cm}{0.3mm}
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\bigskip
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\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-1mm]
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def collatz(n: Long) : Long =
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collatzHelper(n, 0)
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\end{lstlisting}\pause
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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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\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-1mm]
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def collatz_max(bnd: Long) : (Long,Long) = {val lst = for(a<-(1 to bnd.toInt)) yield (collatz(a),a.toLong);val lst2 = lst.sortBy(_._1);lst2(lst2.length-1)}
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\end{lstlisting}\bigskip
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\tiny
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\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-1mm]
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def collatz_max(bnd: Long) : (Long,Long) = {val lst = for(a<-(1 to bnd.toInt)) yield (collatz(a),a.toLong);val lst2 = lst.sortBy(_._1);lst2(lst2.length-1)}
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\end{lstlisting}\pause
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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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\small
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\begin{lstlisting}[language=Scala, xleftmargin=-4mm,numbers=left]
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def process_ratings(lines: List[String]) = {
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val values = List[(String,String)]()
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for(line <- lines){
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val splitList = line.split(",").toList
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if(splitList(2).toInt >= 4){
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val userID = splitList(0)
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val movieID = splitList(1)
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val tuple = (userID, movieID)
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tuple :: values
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}
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}
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values
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}
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\end{lstlisting}
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\normalsize
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What does this function always return?
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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=1.2]
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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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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\begin{frame}[c]
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\frametitle{``Children'' / 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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\end{frame}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\end{document}
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\end{document}
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%%% Local Variables:
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%%% mode: latex
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%%% TeX-master: t
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%%% End:
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