\begin{algorithm}[H]\caption{How to write algorithms}\KwIn{this text}\KwOut{how to write algorithm with \LaTeX2e }initialization\;\While{not at end of this document}{read current\;\eIf{understand}{go to next section\;current section becomes this one\;}{go back to the beginning of current section\;}}
\end{algorithm}
#需要导入以下信息
\usepackage{algorithm}
\usepackage{algpseudocode}
\renewcommand{\algorithmicrequire}{\textbf{Input:}}% Use Input in the format of Algorithm
\renewcommand{\algorithmicensure}{\textbf{Output:}}% Use Output in the format of Algorithm
\begin{algorithm}[h]\caption{Pseudocode of Simulated Annealing Algorithm}% 名称\begin{algorithmic}[1]\Require$x_0$: initial individual or state;$T_0$: a high enough initial temperature;$T_{min}$: the lowest limit of temperature;\Ensureoptimal state or approximate optimal state;\State set $x_0 = x_{best}$, compute initial energy function $E(x_0)$;\While {$T > T_{min}$}\For{$i =1$; $i<n$; $i++$ }\State perturb current state $x_i$ for a new state $x_{new}$ and compute energy function $E(x_{new})$;\State compute $\Delta$ = $E(x_{new}-E(x_{(i)})$;\If {$\Delta$$E<0$} \State $x_{best}= x_{new}$\Else \State the probability $P = exp(-dE/T_{(i)})$;\If {$rand(0,1)< P$ }\State $x_{best}= x_{new}$\Else \State $x_{best}= x_{best}$\EndIf\EndIf\EndFor\State $T = T * $ $ \alpha$, where $\alpha$ is decay factor ;\EndWhile\end{algorithmic}
\end{algorithm}