\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
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\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
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\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{tottale}
\pdfinfo{
  /Title (swift-algorithm.pdf)
  /Creator (Cheatography)
  /Author (tottale)
  /Subject (swift algorithm Cheat Sheet)
}

% Lengths and widths
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% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
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\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{swift algorithm Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{tottale} via \textcolor{DarkBackground}{\uline{cheatography.com/161907/cs/33938/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}tottale \\
  \uline{cheatography.com/tottale} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 7th September, 2022.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{2.23965 cm} x{2.73735 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{수학 계산}}  \tn
% Row 0
\SetRowColor{LightBackground}
거듭 제곱 & `pow(2.0, 3.0) ` \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
제곱근 & `sqrt(4.0)` \tn 
% Row Count 2 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.23965 cm} x{2.73735 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{자주 쓰이는 것들 (copy)}}  \tn
% Row 0
\SetRowColor{LightBackground}
기본 입력 String으로 받기 & `var input = readLine()!` \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
기본 입력 Int로 받기 & `var input = Int(readLine()!)!` \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
공백 있는 숫자 받기 & `var nums = readLine()!.split(separator: " ").map \{Int(\$0)!\} ` \tn 
% Row Count 7 (+ 3)
% Row 3
\SetRowColor{white}
공백 없는 숫자 받기 & `var nums = Array(readLine()!).map \{Int(String(\$0))!\}` \tn 
% Row Count 10 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.18988 cm} x{2.78712 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Dictonary}}  \tn
% Row 0
\SetRowColor{LightBackground}
값 수정 & `dic.updateValue("c", forKey:3)` \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
값 추가 & `dic{[}4{]} = "5"` || `dic.update("5", forKey: 4)` \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
접근 & `dic{[}4{]}!` \tn 
% Row Count 6 (+ 1)
% Row 3
\SetRowColor{white}
순회 (순서는 뒤죽박죽) & `for (key, value) in dic \{  \}` \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
값 삭제 & \seqsplit{`dic.removeValue(forKey:4)`} \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
모든 값 삭제 & `dic.removeAll()` \tn 
% Row Count 11 (+ 1)
% Row 6
\SetRowColor{LightBackground}
키를 바꿀 경우 & 지우고 다시 넣어줘야 함 \tn 
% Row Count 13 (+ 2)
% Row 7
\SetRowColor{white}
키로 정렬 & `let sort = dic.sorted(by: \{ \$0.key \textless{} \$1.key \})` \tn 
% Row Count 16 (+ 3)
% Row 8
\SetRowColor{LightBackground}
키만 가져오기 & `for key in dic.keys \{ \}` \tn 
% Row Count 18 (+ 2)
% Row 9
\SetRowColor{white}
값만 가져오기 & `for value in dic.values \{ \}` \tn 
% Row Count 20 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.18988 cm} x{2.78712 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{세트}}  \tn
% Row 0
\SetRowColor{LightBackground}
세트 초기화 & `var stringSet: Set = {[}"Erick", "John", "Sally"{]}` \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
세트 요소 삽입 & \seqsplit{`stringSet.insert("Patrick")`} \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
세트 요소 확인 & \seqsplit{`stringSet.contains("Erick")`} \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
세트 요소 삭제 & \seqsplit{`stringSet.remove("Erick")`} \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
인덱스 찾기 & `stringSet.index(of: "John")!` \tn 
% Row Count 11 (+ 2)
% Row 5
\SetRowColor{white}
처음요소 삭제 & \seqsplit{`stringSet.removeFirst()`} \tn 
% Row Count 13 (+ 2)
% Row 6
\SetRowColor{LightBackground}
모든 요소 삭제 & \seqsplit{`stringSet.removeAll()`} \tn 
% Row Count 15 (+ 2)
% Row 7
\SetRowColor{white}
두개 세트의 합집합 & \seqsplit{`stringSet.union(someSet)`} \tn 
% Row Count 17 (+ 2)
% Row 8
\SetRowColor{LightBackground}
두개 세트의 교집합 & \seqsplit{`stringSet.intersection(someSet)`} \tn 
% Row Count 19 (+ 2)
% Row 9
\SetRowColor{white}
두개 세트의 여집합 & \seqsplit{`stringSet.symmetricDifference(someSet)`} \tn 
% Row Count 21 (+ 2)
% Row 10
\SetRowColor{LightBackground}
두개 세트의 차집합(A-B) & \seqsplit{`stringSet.substract(someSet)`} \tn 
% Row Count 23 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{array}}  \tn
% Row 0
\SetRowColor{LightBackground}
마지막에 요소 {\bf{삽입}} & `array.append(10)` \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
특정 인덱스에 요소 {\bf{삽입}} & `array.insert(4, at: 2)` \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
마지막 요소 {\bf{삭제}} & \seqsplit{`array.removeLast()`} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
특정 인덱스의 요소 {\bf{삭제}} & `array.remove(at: 3)` \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
임의의 요소 넣어서 배열 만들기 & `var array = Array(1...5)` \tn 
% Row Count 11 (+ 3)
% Row 5
\SetRowColor{white}
크기가 정해진 배열 만들기 & `var array = Array(repeating: 0, count: 3)` \tn 
% Row Count 14 (+ 3)
% Row 6
\SetRowColor{LightBackground}
배열 거꾸로 출력 & `array.reversed()` \tn 
% Row Count 16 (+ 2)
% Row 7
\SetRowColor{white}
배열 정렬 & `array.sorted() // default는 오름차순 array.sorted(by: \textgreater{}) // 내림차순` \tn 
% Row Count 20 (+ 4)
% Row 8
\SetRowColor{LightBackground}
맨뒤 원소 지우고 반환 & \seqsplit{`array.removeLast()`} \tn 
% Row Count 22 (+ 2)
% Row 9
\SetRowColor{white}
원소 가지고 있는지 확인 & \seqsplit{`array.contains(3)`} \tn 
% Row Count 24 (+ 2)
% Row 10
\SetRowColor{LightBackground}
첫 원소 지우고 반환 & \seqsplit{`array.removeFirst()`} \tn 
% Row Count 26 (+ 2)
% Row 11
\SetRowColor{white}
첫번째 원소 반환 & `array.first!` \tn 
% Row Count 28 (+ 2)
% Row 12
\SetRowColor{LightBackground}
마지막 원소 반환 & `array.last!` \tn 
% Row Count 30 (+ 2)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{array (cont)}}  \tn
% Row 13
\SetRowColor{LightBackground}
최대값 & `var min = array.min()!` \tn 
% Row Count 2 (+ 2)
% Row 14
\SetRowColor{white}
최소값 & `var max = array.max()!` \tn 
% Row Count 4 (+ 2)
% Row 15
\SetRowColor{LightBackground}
조건 부합 원소 지우기 & \seqsplit{`array.removeAll(where:} \{\$0 \% 2 == 0\}) ` \tn 
% Row Count 6 (+ 2)
% Row 16
\SetRowColor{white}
원소 스왑 & `array.swapAt(\_:, \_:)` \tn 
% Row Count 8 (+ 2)
% Row 17
\SetRowColor{LightBackground}
subRange로 해당 범위의 주소 가져오기 & `arr{[}2..\textless{}5{]}` \tn 
% Row Count 11 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}