Update exam/packet.tex

exam/packet.tex

@@ -6,7 +6,7 @@
 \usepackage{listings}
 \usepackage{xcolor}
 \usepackage{enumitem}
-
+\usepackage{comment}
 % Page layout
 \geometry{margin=1in}
 \pagestyle{fancy}
@@ -54,7 +54,7 @@
     \item For each problem, write a function or program according to the specified input/output format.
     \item Clearly comment your code if necessary.
 \end{enumerate}
-
+\begin{comment}
 % ========================= Problem 1 =========================
 \problem{Problem 1: Two Sum}
 \textit{Difficulty: Easy}
@@ -140,13 +140,13 @@ Output:
 8 10
 15 18
 \end{verbatim}
-
-% ========================= Problem 4 =========================
-\problem{Problem 4: Six Seven}
+\end{comment}
+% ========================= Problem 6 =========================
+\problem{Problem 6(.7): Six Seven}
 \textit{Difficulty: Easy}
-
-You are given a string S composed of only the characters ‘6', ‘7’, ‘A', ‘B', and ‘\#' (without the quotation marks). This string is processed from left to right, and you must maintain a sequence of chracters that changes according to these rules:
 \begin{itemize}
+You are given a string S composed of only the characters ‘6', ‘7’, ‘A', ‘B', and ‘\#' (without the quotation marks). This string is processed from left to right, and you must maintain a sequence of chracters that changes according to these rules:
+
 \item 6 - add a 6 to the end of the sequence
 \item 7 - if the sequence is non-empty and its last chracter is ‘6', remove that last ‘6', otherwise, add ‘7' to the end of the sequence
 \item A - reverse the sequence
@@ -155,7 +155,7 @@ You are given a string S composed of only the characters ‘6', ‘7’, ‘A',
 \end{itemize}
 \inputformat
 \begin{itemize}
-    \item The first line consists of the string S ($1 \leq |S| \leq 2 * 10^5$). The string consists only of the characters 6, 7, A, B, and \#.
+    \item The first line consists of the string S. The string consists only of the characters 6, 7, A, B, and \#.
 \end{itemize}
 
 \outputformat
@@ -184,55 +184,5 @@ Output 3:
 EMPTY
 \end{verbatim}
 
-% ========================= Problem 5 =========================
-\problem{Problem 5: Limited Jumps}
-\textit{Difficulty: Medium}
+\end{document}
 
-You are given a grid of size N x M, where each cell contains either 6 or 7. You start at the top-left corner (1,1) and want to reach the bottom-right corner (N,M). You can move right, down, or jump diagonally (right+down). The maze has these rules:
-\begin{itemize}
-\item You can step on a 6 any number of times
-\item You can step on a 7 at most once in your path
-\item You can make at most one diagonal move in your path
-\end{itemize}
-
-Your task is to determine if there exists any valid path from (1,1) to (N,M) obeying the rules.
-
-\inputformat
-\begin{itemize}
-    \item The first line consists 2 integers N and M ($1 \leq N, M \leq 10^9$), the number of rows and columns, respectively
-    \item The next N lines will consist of strings of length M, containing 6 or 7
-\end{itemize}
-
-\outputformat
-\begin{itemize}
-    \item Output a single line. If there exists a valid path, print ``Sixxx sevennn" (without the quotations). If there does not exist a valid path, print ``Six was afraid of seven after all" (without the quotations).
-\end{itemize}
-
-\examples
-\begin{verbatim}
-Input 1:
-2 2
-66
-67
-
-Output 1:
-Sixxx sevennn
-
-Input 2:
-2 2
-77
-77
-
-Output 2:
-Six was afraid of seven after all
-
-Input 3:
-3 3
-666
-676
-666
-
-Output 3:
-Sixxx sevennn
-\end{verbatim}
-\end{document}