$\frac{114514}{1919810}$

测试 $\newcommand{\sqrt}{\overline}$

$\sqrt{2}$

$$ \begin{CD} A @>a>> B \\ @VbVV @AAcA \\ C @= D \end{CD} $$

$$ \genfrac ( ] {5pt}{1}a{a+1} $$

$$ \Huge\genfrac ( ] {2pt}{1}a{a+1} $$

$$ \def\arraystretch{1.5} \begin{array}{c:c:c} k & kk & kkk \\ \hline kk & kk & kk\\ \hdashline U & O & J \end{array} $$

$$ \Huge\def\arraystretch{1.5} \begin{array}{c:c:c} a & b & c \\ \hline d & e & f \\ \hdashline g & h & i \end{array} $$ $\huge \text{感觉UOJ的LaTeX有点小？}

$a^2 + b^2 = c^2 $

$\boxed{\boxed{\boxed{\boxed{\boxed{1}}}}}$

$\color{9b9b9b}\texttt{#include}\color{d39b83}\texttt{<bits/stdc++.h>}$

$ \kern{2pt} \color{black}\small \raisebox{-3pt}{\bf{⊥}} \kern{-10.5pt} \color{black}\Huge\circ \color{white}\kern{-16pt}\rule[6.5pt]{12pt}{10pt} \kern{-10.6pt}\color{black} \LARGE\raisebox{2.3pt}{∙} \kern{-8.5pt}\raisebox{6pt}{∙}\kern{-7.8pt} \rule[6pt]{6.8pt}{4pt}\kern{-6.5pt} \color{red}\xcancel{\phantom{\rule[-2pt]{6pt}{15pt}}} $

$$ 测试^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} $$

$$\mathrm{LaTeX}$$