重置算法计数器

Question

我正在编写一个算法，其中输入有两行。我首先尝试使用itemize环境，后来用 代替，algorithmic以获得统一的外观和感觉。问题是，实际算法中的计数器现在从 3 开始。为了解决这个问题，我把它放在另一行中algorithmic（这些行标记为% Comment out this line）。这解决了编号问题，但增加了缩进问题（现在看起来这些是下面的行输出）。

我有这个最小的工作示例：

\documentclass{article}
\usepackage{algorithm}
%\usepackage{algorithmic}
\PassOptionsToPackage{noend}{algpseudocode}
\usepackage{algpseudocode}%

\makeatletter
\def\BState{\State\hskip-\ALG@thistlm}
\makeatother
\algnewcommand\algorithmicinput{\textbf{Input:}}
\algnewcommand\algorithmicoutput{\textbf{Output:}}
\algnewcommand\Input{\item[\algorithmicinput]}%
\algnewcommand\Output{\item[\algorithmicoutput]}%


\begin{document}

    \begin{algorithm}
        \caption{Caption}\label{label}
        \begin{algorithmic}[1]
            \Input 
            {\begin{algorithmic}[1]
                    \item Something in line 1
                    \item Something in line 2
                \end{algorithmic}
            }
            \Output {Suppose something is in here}
            \begin{algorithmic}[1] % Comment out this line 
                \State Here goes the actual algorithm
                \State Now the next step
                \State This step, and we are done
                \State \Return {Here you go}
            \end{algorithmic} % Comment out this line 
        \end{algorithmic}
    \end{algorithm}
    
\end{document}

问题（全部关于缩进）：

1. 注意输入缩进不一致（第 2 行向左移动了一点）。我该如何修复？
2. 在给定当前版本的情况下，如何减少实际算法中步骤的缩进？
3. （替代 2，至少回答一个就足够了）。如果注释掉标记的行，问题 2 中的缩进就会消失。在这种情况下，我如何将算法编号重置回 1？

Answer 1

以下是两个建议。其中一个可能适合您的需求：

\documentclass{article}
\usepackage{algorithm}
%\usepackage{algorithmic}
\PassOptionsToPackage{noend}{algpseudocode}
\usepackage{algpseudocode}%

\makeatletter
\def\BState{\State\hskip-\ALG@thistlm}
\makeatother
\algnewcommand\algorithmicinput{\textbf{Input:}}
\algnewcommand\algorithmicoutput{\textbf{Output:}}
\algnewcommand\Input{\item[\algorithmicinput]}%
\algnewcommand\Output{\item[\algorithmicoutput]}%


\begin{document}

    \begin{algorithm}
        \caption{Caption}\label{label}
        \begin{algorithmic}[1]
            \Input Something in line 1
                     
                   Something in line 2 
            \Output {Suppose something is in here}
                \State Here goes the actual algorithm
                \State Now the next step
                \State This step, and we are done
                \State \Return {Here you go} 
        \end{algorithmic}
    \end{algorithm}

    \begin{algorithm}
        \caption{Caption}\label{label}
        \begin{algorithmic}[1]
            \Input 
            \item Something in line 1 
            \item  Something in line 2 \setcounter{ALG@line}{0}
            \Output {Suppose something is in here}
                \State Here goes the actual algorithm
                \State Now the next step
                \State This step, and we are done
                \State \Return {Here you go} 
        \end{algorithmic}
    \end{algorithm}

    
\end{document}