Cpp.tex

\documentclass[fontsize=8pt, a4paper, fleqn, landscape, DIV=calc]{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}

\usepackage{hyperref}%links in the pdf
\hypersetup{pdfborder = {0 0 0}}%No borders around Hyperlinks

%Layout
\usepackage{multicol, geometry, tcolorbox, fancyhdr, lastpage, dirtytalk, qrcode, rotating}
% mehrere spalten, page layout, farbboxen der titel, header/footer, linkt to last page, make the use of "" easier, QR code im Titel, Rotate tables
\geometry{margin=1cm}
\parindent 0pt
\pagestyle{fancy}
\newlength{\breite}
\setlength{\breite}{0.5pt}
\setlength{\columnseprule}{\breite}

\usepackage[table,xcdraw]{xcolor}% color

%Math stuff
\usepackage{mathtools}
%\allowdisplaybreaks %allow display breaks in align

%\newcommand{\todo}[1][todo]{% Todo marker
%    \begin{tcolorbox}[colback=orange, beforeafter skip=2pt, boxrule=0pt, arc=2pt, left=0pt, right=0pt, top=0pt, bottom=0pt]%
%        {#1}%
%    \end{tcolorbox}%
%} 
% Todo no longer alowed


%automate Columnbreak
\newcommand{\nextcol}{%
\vfill\null%
\columnbreak%
}

\usepackage{enumitem}%Itemise 

%Display Code
\usepackage{listings}
\definecolor{codeGreen}{RGB}{69, 161, 18}
\definecolor{backgroundcolor}{RGB}{255,255,255}
\lstdefinestyle{mystyle}{
    language = [11]C++,
    backgroundcolor=\color{backgroundcolor},
    commentstyle=\color{blue},
    keywordstyle=\color{codeGreen},
    numberstyle=\tiny\color{black},
    stringstyle=\color{olive},
    basicstyle=\ttfamily\footnotesize,
    breakatwhitespace=false,         
    breaklines=true,                  
    captionpos=b,                    
    keepspaces=true,                 
    numbers=none,                    
    numbersep=5pt,                  
    showspaces=false,                
    showstringspaces=false,
    showtabs=false,                  
    tabsize=2,
    morekeywords  = {[11]final, override}
}
\lstset{style=mystyle}

\usepackage{ifthen} % ifthen to let others use this document, based on their setup
\newboolean{tikzumlWorks}
\setboolean{tikzumlWorks}{true} % false = tikzumlpackage NOT installed

\newboolean{svgWorks}
\setboolean{svgWorks}{true} % false = svg package NOT installed

\ifthenelse{\boolean{tikzumlWorks}}{
    \usepackage{tikz-uml} % for this to work, download tikz-uml.sty from https://perso.ensta-paris.fr/~kielbasi/tikzuml/index.php?lang=en to 'texlive/texmf-local/tex/latex/local' and run 'texhash' in ps terminal (windows)
    \tikzumlset{fill class=subsectionbarcolor!50}
    }{}

\ifthenelse{\boolean{svgWorks}}{
    \usepackage{svg}
    \svgpath{{svg/}}
    }{}


% color for  Titel / sub Titel
\definecolor{sectionbarcolor}{RGB}{148,0,255}
\definecolor{subsectionbarcolor}{RGB}{220,173,255}
\definecolor{sectiontextcolor}{RGB}{255,255,255}
\definecolor{subsectiontextcolor}{RGB}{0,0,0}

%section color box
\setkomafont{section}{\mysection}
\newcommand{\mysection}[1]{%
    \Large%
    \begin{tcolorbox}[colback=sectionbarcolor, coltext=sectiontextcolor, beforeafter skip=1pt, boxrule=0pt, arc=2pt, left=0pt, right=0pt, top=0pt, bottom=0pt]%
        {#1}%
    \end{tcolorbox}%
}

%subsection color box
\setkomafont{subsection}{\mysubsection}
\newcommand{\mysubsection}[1]{%
    \Large%
    \begin{tcolorbox}[colback=subsectionbarcolor, coltext=subsectiontextcolor, beforeafter skip=1pt, boxrule=0pt, arc=2pt, left=0pt, right=0pt, top=0pt, bottom=0pt]%
        {#1}%
    \end{tcolorbox}%
}

%Information for maketitle
\title{\vspace{-1cm}Prog C++}
\subtitle{FS 2024, Prof. Dr. Christian Werner}
\author{Fabian Steiner, \today}
\date{{\small 1.1.7}}

%Header & footer
\fancyhf{}
\setlength{\footskip}{0.5cm}
\fancyfoot[L]{\thepage{} / \pageref{LastPage}}
\fancyfoot[R]{C++}
\renewcommand{\footrulewidth}{0pt}
\renewcommand{\headrulewidth}{0pt}

\begin{document}
	\begin{multicols*}{3}
        \raggedcolumns
        \begin{minipage}{0.75\columnwidth}
		      \maketitle
        \end{minipage}
        \begin{minipage}{0.2\columnwidth}
            \begin{center}
                \quad
                \qrcode[height=1cm]{https://github.com/Iceteavanill}
                \qquad    
            \end{center}
        \end{minipage}
        
        \thispagestyle{fancy}%Pagenumber for first page

        \input{Sections/01_basics}
        \input{Sections/02_Objektorientierung.tex}
        \input{Sections/03_Memorymanagement.tex}
        \input{Sections/04_makefiles.tex}
        
        \section{Emotional support meme}
        
        \begin{center}
            \includegraphics[width=\columnwidth]{pictures/ifcondition.png}  
        \end{center}            

	\end{multicols*}
\end{document}