From 4879a46be1c056cceb46be12155796a75f070c68 Mon Sep 17 00:00:00 2001
From: Srivaishnavi Yaddanapudi
<127314796+Y-Srivaishnavi@users.noreply.github.com>
Date: Tue, 29 Oct 2024 16:52:40 +0530
Subject: [PATCH] Fix number of rotations `N` as 13 (Resolves
TheAlgorithms#12306)
---
ciphers/rot13.py | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/ciphers/rot13.py b/ciphers/rot13.py
index b367c3215..5deb87c5d 100644
--- a/ciphers/rot13.py
+++ b/ciphers/rot13.py
@@ -1,4 +1,4 @@
-def dencrypt(s: str, n: int = 13) -> str:
+def dencrypt(s: str) -> str:
"""
https://en.wikipedia.org/wiki/ROT13
@@ -9,12 +9,13 @@ def dencrypt(s: str, n: int = 13) -> str:
>>> dencrypt(s) == msg
True
"""
+ N = 13
out = ""
for c in s:
if "A" <= c <= "Z":
- out += chr(ord("A") + (ord(c) - ord("A") + n) % 26)
+ out += chr(ord("A") + (ord(c) - ord("A") + N) % 26)
elif "a" <= c <= "z":
- out += chr(ord("a") + (ord(c) - ord("a") + n) % 26)
+ out += chr(ord("a") + (ord(c) - ord("a") + N) % 26)
else:
out += c
return out