Latex算法伪代码模板

\renewcommand{\algorithmicrequire}{\textbf{Input:}} % Use Input in the format of Algorithm
\renewcommand{\algorithmicensure}{\textbf{Output:}} % Use Output in the format of Algorithm
\begin{algorithm}[htb]
\caption{Hierarchical Clustering Alogorithm.}
\label{alg1}
\begin{algorithmic}[1]
\Require Unlabeled data ${\left\{x_i\right\}}_{i=1}^N$; Number of clusters $N_t$.
\Ensure $N_t$ clusters of unlabeled data.
\State Initializing each sample in ${\left\{x_i\right\}}_{i=1}^N$ as one cluster;
\label{code1}
\Repeat
\State Finding two clusters $C_{i^{\ast }}$, $C_{j^{\ast }}$ belonging to the nearest pair;
\label{code2}
\State Combining two clusters $C_{i^{\ast }}$, $C_{j^{\ast }}$ into one cluster $C$;
\label{code3}
\Until{Number of clusters = $N_t$.}
\label{code4}
\State \Return Final $N_t$ clusters of unlabeled data.
\end{algorithmic}
\end{algorithm}