Assignment

% !TEX program = pdflatex
% !TEX options = -synctex=1 -interaction=nonstopmode -file-line-error "%DOC%"
% Assignment Template
\documentclass[UTF8,10pt,a4paper]{article}
\usepackage[scheme=plain]{ctex}% Chinese support
% assignment information
\newcommand{\CourseName}{Course Name}
\newcommand{\CourseCode}{Course Code}
\newcommand{\Semester}{Season, 20}
\newcommand{\ProjectName}{Assignment }
\newcommand{\DueTimeType}{Due Date}
\newcommand{\DueTime}{ , 20 (day)}
\newcommand{\StudentName}{陈稼霖}
\newcommand{\StudentID}{45875852}
\usepackage[vmargin=1in,hmargin=.5in]{geometry}% page margin
\usepackage{fancyhdr}% header and foot
\usepackage{lastpage}% return the page number of the last page
\usepackage{calc}% return the width of the text
\pagestyle{fancy}% global header and foot style
\fancyhf{}% clear the default header and foot
\fancyhead[L]{\CourseName}% the left of the header
\fancyhead[C]{\ProjectName}% the center of the header
\fancyhead[R]{\StudentName}% the right of the header
\fancyfoot[R]{\thepage\ / \pageref{LastPage}}% the right of the foot
\setlength\headheight{12pt}% the height of the header
\fancypagestyle{FirstPageStyle}{% the header and foot style of the first page
    \fancyhf{}% clear the default header and foot
    \fancyhead[L]{\CourseName\\
        \CourseCode\\
        \Semester}% the left of the header
    \fancyhead[C]{{\Huge\bfseries\ProjectName}\\
        \DueTimeType\ : \DueTime}% the center of the header
    \fancyhead[R]{Name : \makebox[\widthof{\StudentID}][s]{\StudentName}\\
        Student ID\@ : \StudentID\\
        Score : \underline{\makebox[\widthof{\StudentID}]{}}}% the right of the header
    \fancyfoot[R]{\thepage\ / \pageref{LastPage}}% the right of the foot
    \setlength\headheight{36pt}% the height of the header
}
\usepackage{amsmath,amssymb,amsthm,bm}% basic math support, special math symbols, theorem custom, bold in equation
\allowdisplaybreaks[4]% cross-page equations
\newtheoremstyle{Problem}% theorem style name
{}% space above theorem, being left empty means default
{}% space below theorem, being left empty means default
{}% theorem body font
{}% theorem indent amount
{\bfseries}% theorem head font
{.}% punctuation after theorem head
{ }% space after theorem head, whitespace means normal interword space
{\thmname{#1}\thmnumber{ #2}\thmnote{ (#3)} Score: \underline{\qquad\qquad}}% theorem head spec, being left empty means default
\theoremstyle{Problem}% set the theorem style
\newtheorem{prob}{Problem}% problem
\newtheoremstyle{Solution}% theorem style name
{}% space above theorem, being left empty means default
{}% space below theorem, being left empty means default
{}% theorem body font
{}% theorem indent amount
{\bfseries}% theorem head font
{:}% punctuation after theorem head
{ }% space after theorem head, whitespace means normal interword space
{\thmname{#1}}% theorem head spec, being left empty means default
\makeatletter
\def\@endtheorem{\qed\endtrivlist\@endpefalse}% add qed symbols (black hollow small square) to the end of solutions
\makeatother
\theoremstyle{Solution}% set the theorem style
\newtheorem*{sol}{Solution}% solution
% \usepackage{mathrsfs}% non-CM calligraphic letters in equation - \mathscr{}
% \usepackage{esint}% special integral signs
% \providecommand{\abs}[1]{\left\lvert#1\right\rvert}% absolute - \abs
% \providecommand{\norm}[1]{\left\lVert#1\right\rVert}% norm - \norm
% \providecommand{\bra}[1]{\left\langle#1\right\rvert}% bra - \bra{}
% \providecommand{\ket}[1]{\left\lvert#1\right\rangle}% ket - \ket{}
% \providecommand{\braket}[2]{\left\langle#1\vert#2\right\rangle}% contiguous ket after bra - \braket{}{}
% \usepackage{graphicx}% graphics -
% \begin{figure}[htbp]% set the position of the figure
%     \centering% figure centering
%     \includegraphics[scale=.5]{figure-file-name}
%     \caption{figure-caption}
%     \label{figure-label}
% \end{figure}
% \usepackage{float}% set the position of figures mandatorily - [H]
% \usepackage{subfigure}% subfigures in the figure environment -
% \begin{figure}[htbp]set the position of the figure environment
%     \centering% figure environment centering
%     \subfigure[subfigure-caption]{
%         \label{subfigure-label}
%         \includegraphics[width=0.45\textwidth]{subfigure-file-name}}
%     \subfigure[subfigure-caption]{
%         \label{subfigure-label}
%         \includegraphics[width=0.45\textwidth]{subfigure-file-name}}
%     \caption{figure caption}
%     \label{figure-label}
% \end{figure}
% \usepackage{multirow}% tables with merged multi-row cells
% \usepackage{booktabs}% three-line tables - \toprule, \midrule, \bottomrule
% \usepackage{longtable}% cross-page tables -
% \begin{center}% table centering
%     \begin{longtable}{lcr}% table columns aligning: l = left-aligning, c = center-aligning, r = right-aligning
%         \caption{table-caption}
%         \label{table-label}
%     \end{longtable}
% \end{center}
% \usepackage[version=4]{mhchem}% chemistry equations - \ce{}
\begin{document}
\thispagestyle{FirstPageStyle}% set the style of head and foot of the first page
\begin{prob}[Problem title]
    This is the problem.
\end{prob}
\begin{sol}
    This is the solution.
\end{sol}
\end{document}