\chapter{Back to basics}

\begin{algorithm}
	\caption{Search an element in an array}
	\begin{algorithmic}[1]
		\Function{Search}{$A$: Array($n$), $E$: element}
		\For {($i = 0$; $i < n$; $i++$)}
		\If {$A[i] = E$}
		\State \Return \True
		\EndIf
		\EndFor
		\State \Return \False
		\EndFunction
	\end{algorithmic}
\end{algorithm}

\begin{algorithm}
	\caption{Search an element in an array using a while loop}
	\begin{algorithmic}[1]
		\Function{Search}{$A$: Array($n$), $E$: element}
		\State $i \gets 0$
		\While {$i < n$}
		\If {$A[i] = E$}
		\State \Return \True
		\EndIf
		\State $i \gets i + 1$
		\EndWhile
		\State
		\Return
		\False
		\EndFunction
	\end{algorithmic}
\end{algorithm}

\begin{algorithm}
	\caption{Search an element in an array using a while loop (bis)}
	\begin{algorithmic}[1]
		\Function{Search}{$A$: Array($n$), $E$: element}
		% \Comment{Version ``preffered" by the professor}
		\State $i \gets 0$
		\While {$i < n$ and $A[i] \neq E$}
		\State $i \gets i + 1$
		\EndWhile
		\If {$i = n$}
		\State
		\Return \False \Else \State \Return \True \EndIf
		\EndFunction
	\end{algorithmic}
\end{algorithm}

\begin{algorithm}
	\caption{Count the occurrences of an element in an array}
	\begin{algorithmic}[1]
		\Function{Search}{$A$: Array($n$), $E$: element} \State $c \gets 0$
		\For{($i = 0$; $i < n$; $i++$)} \If {A[i] $ = $ E} \State $c \gets c + 1$ \EndIf
		\EndFor \State \Return $c$ \EndFunction
	\end{algorithmic}
\end{algorithm}