\begin{algorithm} \renewcommand{\algorithmicrequire}{\textbf{Input:}} \renewcommand{\algorithmicensure}{\textbf{Output:}} \caption{FRRSC} \label{算法标签} \begin{algorithmic}[1] \REQUIRE {$N$ is big dataset. $m$ samples in each group. $b$ and $b'$ set by us due to the data type and demand of user as standards of similarity. The samples $T[1]$ to $T[i-1]$ and each set is with $m$ indexes from $T[a,1]$ to $T[a,m](1\leq a \leq i-1)$} \ENSURE The group of indexes from $T[1]$ to $T[n]$. \STATE $p=i\times x$ \STATE number $i\times m+1$ to $N$ tuples from 1 to $N-i\times m$ \WHILE{($k<m$ and $i<|N|$)} \IF{$N_i$ is complete} \STATE $S_k\gets N_i$ \STATE $k\gets k+1$ \ENDIF \STATE $i\gets i+1$ \ENDWHILE \WHILE{$i<|N|$} \IF{$N[t]$ is complete} \FOR{$j=0$ to $m-1$} \IF{cmp($N_i,S_j$)$\geq \epsilon$} \STATE $q\gets q+1; k\gets$ rand[1,$q$] \ENDIF \IF{$k\leq m$} \STATE $S_j \gets N_i$ \STATE break \ENDIF \ENDFOR \ENDIF \STATE $i \gets i+1$ \ENDWHILE \RETURN $S$ \end{algorithmic} \end{algorithm}

这段代码已经是一个标准的算法伪代码了，它使用了algorithmic宏包提供的`algorithmic`环境来输入。其中，`\REQUIRE`和`\ENSURE`命令用来设置输入和输出，`\STATE`命令用来输入每一行的语句。此外，这个算法伪代码还使用了`\IF`、`\FOR`、`\WHILE`等命令来描述算法的流程。最后，`\RETURN`命令用来输出结果。

如果你想要使用algorithm2e宏包来输入这段代码，可以参考下面的示例：

\usepackage[lined,boxed,commentsnumbered,ruled,linesnumbered]{algorithm2e}

\begin{algorithm}[H]
\SetAlgoLined
\caption{FRRSC}
\label{alg:frrsc}
\SetKwInOut{Input}{Input}
\SetKwInOut{Output}{Output}
\Input{N is big dataset. m samples in each group. b and b' set by us due to the data type and demand of user as standards of similarity. The samples T[1] to T[i-1] and each set is with m indexes from T[a,1] to T[a,m](1<=a<=i-1)}
\Output{The group of indexes from T[1] to T[n]}
$p\gets i\times x$\;
number $i\times m+1$ to N tuples from 1 to N-i\times m\;
\While{($k<m$ and $i<|N|$)}{
  \If{$N_i$ is complete}{
    $S_k\gets N_i$\;
    $k\gets k+1$\;
  }
  $i\gets i+1$\;
}
\While{$i<|N|$}{
  \If{$N[t]$ is complete}{
    \For{$j=0$ to $m-1$}{
      \If{cmp($N_i,S_j$)$\geq \epsilon$}{
        $q\gets q+1; k\gets$ rand[1,$q$]\;
      }
      \If{$k\leq m$}{
        $S_j \gets N_i$\;
        break\;
      }
    }
  }
  $i \gets i+1$\;
}
\Return $S$\;
\end{algorithm}

在这个例子中，我们使用algorithm2e宏包来输入算法伪代码。`\SetAlgoLined`命令可以设置代码的格式，`\SetKwInOut`命令用来设置输入和输出。此外，我们还对代码进行了一些调整，比如将注释用`\;`来标记，去掉了一些多余的空格。