\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
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\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{Ptero}
\pdfinfo{
  /Title (python-coding-interview.pdf)
  /Creator (Cheatography)
  /Author (Ptero)
  /Subject (Python Coding Interview Cheat Sheet)
}

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% This two commands together give roughly
% the right line height in the tables
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\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{Python Coding Interview Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Ptero} via \textcolor{DarkBackground}{\uline{cheatography.com/190551/cs/39752/}}}
\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}Ptero \\
  \uline{cheatography.com/ptero} \\
  \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 10th August, 2023.\\
   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}

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% Row 0
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% Row Count 1 (+ 1)
% Row 1
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% Row Count 3 (+ 2)
% Row 2
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% Row Count 5 (+ 2)
% Row 3
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% Row Count 7 (+ 2)
% Row 4
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% Row Count 9 (+ 2)
% Row 5
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% Row Count 10 (+ 1)
% Row 6
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% Row Count 11 (+ 1)
% Row 7
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% Row Count 12 (+ 1)
% Row 8
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% Row Count 14 (+ 2)
% Row 9
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% Row Count 15 (+ 1)
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% Row 0
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% Row Count 1 (+ 1)
% Row 1
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% Row Count 2 (+ 1)
% Row 2
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% Row Count 4 (+ 2)
% Row 3
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% Row Count 6 (+ 2)
% Row 4
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% Row Count 7 (+ 1)
% Row 5
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% Row Count 8 (+ 1)
% Row 6
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% Row Count 9 (+ 1)
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\par\addvspace{1.3em}

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% Row 0
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% Row Count 1 (+ 1)
% Row 1
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% Row Count 2 (+ 1)
% Row 2
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% Row 3
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% Row 4
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% Row 5
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\par\addvspace{1.3em}

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% Row 0
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% Row Count 1 (+ 1)
% Row 1
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% Row Count 2 (+ 1)
% Row 2
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% Row Count 3 (+ 1)
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% Row 0
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% Row Count 1 (+ 1)
% Row 1
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% Row 2
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% Row Count 3 (+ 1)
% Row 3
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% Row Count 5 (+ 2)
% Row 4
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% Row Count 6 (+ 1)
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{0.9954 cm} x{3.9816 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Misc}}  \tn
% Row 0
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\seqsplit{occurrence} & import collections\{\{nl\}\}d = defaultdict(int)\{\{nl\}\}for w in words:\{\{nl\}\}d{[}w{]} += 1 \tn 
% Row Count 3 (+ 3)
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.69218 cm} x{3.28482 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Min Max}}  \tn
% Row 0
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min int/float & float('-inf')\{\{nl\}\}// or\{\{nl\}\}-math.inf \tn 
% Row Count 2 (+ 2)
% Row 1
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max int/float & float('inf')\{\{nl\}\}// or\{\{nl\}\}math.inf \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
min & m = min(a, b, c, ...) \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
min in array & m = min(arr) \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
min in dict key & m = min(\{1:4, 2:3\}) \# 1 \tn 
% Row Count 8 (+ 2)
% Row 5
\SetRowColor{white}
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% Row Count 11 (+ 3)
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\par\addvspace{1.3em}

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% Row 0
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% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
get & c = s{[}i{]} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
check empty & if not s: \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
length & length = len(s) \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
compare & if s1 == s2: \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
reverse & r = s{[}::-1{]} \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
to lower & s = s.{\bf{lower}}() \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
to upper & s = s.{\bf{upper}}() \tn 
% Row Count 8 (+ 1)
% Row 8
\SetRowColor{LightBackground}
get sub string & sub = s{[}from : to{]} \tn 
% Row Count 9 (+ 1)
% Row 9
\SetRowColor{white}
check sub string & if sub in s: \tn 
% Row Count 10 (+ 1)
% Row 10
\SetRowColor{LightBackground}
split & arr = s.{\bf{split}}(sep) \tn 
% Row Count 11 (+ 1)
% Row 11
\SetRowColor{white}
join & s = sep.{\bf{join}}(arr) \tn 
% Row Count 12 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.04057 cm} x{2.93643 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{List}}  \tn
% Row 0
\SetRowColor{LightBackground}
new & arr = {[}1, 2, 3{]} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
get & num = arr{[}i{]} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
check empty & if not arr: \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
length & length = len(arr) \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
reverse & r = arr{[}::-1{]} \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
get sub array & sub = arr{[}from : to{]} \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
fill & arr = {[}i for i in range(5){]} \tn 
% Row Count 8 (+ 2)
% Row 7
\SetRowColor{white}
traverse & for num in arr: \tn 
% Row Count 9 (+ 1)
% Row 8
\SetRowColor{LightBackground}
sort asscending (in-place) & arr.{\bf{sort}}() \tn 
% Row Count 11 (+ 2)
% Row 9
\SetRowColor{white}
sort descending (in-place) & arr.{\bf{sort}}(reverse=True) \tn 
% Row Count 13 (+ 2)
% Row 10
\SetRowColor{LightBackground}
find index & index = arr.{\bf{index}}(num, start, end) \tn 
% Row Count 15 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.54287 cm} x{3.43413 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Stack}}  \tn
% Row 0
\SetRowColor{LightBackground}
new & stack = {[}{]} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
push & stack.{\bf{append}}(num) \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
pop & popped = stack.{\bf{pop}}() \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
top & top = stack{[}-1{]} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
check empty & if not stack: \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
length & length = len(stack) \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.54287 cm} x{3.43413 cm} }
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% Row 0
\SetRowColor{LightBackground}
new & queue = {[}{]} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
push & queue.{\bf{append}}(num) \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
pop & popped = queue.{\bf{pop}}(0) \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
front & front = queue{[}0{]} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
check empty & if not queue: \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
length & length = len(queue) \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} }
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% Row 0
\SetRowColor{LightBackground}
import & import heapq \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
new & heapq = {[}{]} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
heapify & heapq.{\bf{heapify}}(heap) \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
push & heapq.{\bf{heappush}}(heap, item) \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
pop & smallest = heapq.{\bf{heappop}}(heap) \tn 
% Row Count 6 (+ 2)
% Row 5
\SetRowColor{white}
push \& pop & smallest = heapq.{\bf{heappushpop}}(heap, item) \tn 
% Row Count 8 (+ 2)
% Row 6
\SetRowColor{LightBackground}
pop \& push & smallest = heapq.{\bf{heapreplace}}(heap, item) \tn 
% Row Count 10 (+ 2)
% Row 7
\SetRowColor{white}
peek & smallest = heap{[}0{]} \tn 
% Row Count 11 (+ 1)
% Row 8
\SetRowColor{LightBackground}
check empty & if not queue: \tn 
% Row Count 13 (+ 2)
% Row 9
\SetRowColor{white}
length & length = len(queue) \tn 
% Row Count 14 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.59264 cm} x{3.38436 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Set}}  \tn
% Row 0
\SetRowColor{LightBackground}
new & s = set() \# for empty set\{\{nl\}\}\# or\{\{nl\}\}s = \{1, 2, 3\} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
add & s.{\bf{add}}(item) \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
add list & s.{\bf{update}}(arr) \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
delete & s.{\bf{remove}}(item) \# throw error\{\{nl\}\}\# or\{\{nl\}\}s.{\bf{discard}}(item) \# no error \tn 
% Row Count 7 (+ 3)
% Row 4
\SetRowColor{LightBackground}
clear & s.{\bf{clear}}() \tn 
% Row Count 8 (+ 1)
% Row 5
\SetRowColor{white}
check empty & if not s: \tn 
% Row Count 9 (+ 1)
% Row 6
\SetRowColor{LightBackground}
check in set & if item in s: \tn 
% Row Count 10 (+ 1)
% Row 7
\SetRowColor{white}
size & length = len(s) \tn 
% Row Count 11 (+ 1)
% Row 8
\SetRowColor{LightBackground}
to list & arr = list(s) \tn 
% Row Count 12 (+ 1)
% Row 9
\SetRowColor{white}
merge & s = s1 {\bf{|}} s2 \tn 
% Row Count 13 (+ 1)
% Row 10
\SetRowColor{LightBackground}
\seqsplit{intersection} & s = s1 {\bf{\&}} s2 \tn 
% Row Count 14 (+ 1)
% Row 11
\SetRowColor{white}
difference & s = s1 {\bf{-}} s2 \tn 
% Row Count 15 (+ 1)
% Row 12
\SetRowColor{LightBackground}
symetric difference & s = s1 {\bf{\textasciicircum{}}} s2 \tn 
% Row Count 17 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.59264 cm} x{3.38436 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Dict}}  \tn
% Row 0
\SetRowColor{LightBackground}
new & d = \{\} \# for empty dict\{\{nl\}\}\# or\{\{nl\}\}d = \{1:2, 3:4\} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
set & d{[}key{]} = val \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
get & val = d{[}key{]} \# throws error\{\{nl\}\}\# or\{\{nl\}\}val = d.get(key) \# None if not exist \tn 
% Row Count 6 (+ 3)
% Row 3
\SetRowColor{white}
delete & val = s.{\bf{pop}}(key)\{\{nl\}\}\# or\{\{nl\}\}{\bf{del}} d{[}key{]} \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
delete last & key,  val = s.{\bf{popitem}}() \tn 
% Row Count 9 (+ 1)
% Row 5
\SetRowColor{white}
clear & {\bf{del}} d \tn 
% Row Count 10 (+ 1)
% Row 6
\SetRowColor{LightBackground}
check empty & if not d: \tn 
% Row Count 11 (+ 1)
% Row 7
\SetRowColor{white}
check key in dict & if key in d.{\bf{keys}}(): \tn 
% Row Count 13 (+ 2)
% Row 8
\SetRowColor{LightBackground}
check value in dict & if val in d.{\bf{values}}(): \tn 
% Row Count 15 (+ 2)
% Row 9
\SetRowColor{white}
size & length = len(s) \tn 
% Row Count 16 (+ 1)
% Row 10
\SetRowColor{LightBackground}
iterate & for key, val in d.items(): \tn 
% Row Count 17 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.39356 cm} x{3.58344 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Queue (thread safe)}}  \tn
% Row 0
\SetRowColor{LightBackground}
import & from queue import SimpleQueue \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
new & queue = SImpleQueue() \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
push & queue.{\bf{put}}(num) \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
pop & popped = queue.{\bf{get}}() \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
check empty & if queue.{\bf{empty}}(): \tn 
% Row Count 6 (+ 1)
% Row 5
\SetRowColor{white}
length & length = queue.{\bf{qsize}}() \tn 
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.29402 cm} x{3.68298 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{PriorityQueue (thread safe)}}  \tn
% Row 0
\SetRowColor{LightBackground}
import & from queue import PriorityQueue \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
new & pq = PriorityQueue() \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
push & pq.{\bf{put}}(num) \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
pop & popped = pq.{\bf{get}}() \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
check empty & if pq.{\bf{empty}}(): \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
length & length = pq.{\bf{qsize}}() \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}