TheAlgorithms · dynamitechetan · Aug 1, 2016 · Aug 1, 2016
diff --git a/Caesar Cipher.py b/Caesar Cipher.py
diff --git a/ciphers/Caesar Cipher.py b/ciphers/Caesar Cipher.py
@@ -0,0 +1,43 @@
+# The Caesar Cipher Algorithm
+
+def main():
+    message = input("Enter message: ")
+    key = int(input("Key [1-26]: "))
+    mode = input("Encrypt or Decrypt [e/d]: ")
+
+    if mode.lower().startswith('e'):
+        mode = "encrypt"
+    elif mode.lower().startswith('d'):
+        mode = "decrypt"
+
+    LETTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+    translated = ""
+
+    message = message.upper()
+
+    for symbol in message:
+        if symbol in LETTERS:
+            num = LETTERS.find(symbol)
+            if mode == "encrypt":
+                num = num + key
+            elif mode == "decrypt":
+                num = num - key
+
+            if num >= len(LETTERS):
+                num = num - len(LETTERS)
+            elif num < 0:
+                num = num + len(LETTERS)
+
+            translated = translated + LETTERS[num]
+        else:
+            translated = translated + symbol
+
+    if mode == "encrypt":
+        print("Encryption:", translated)
+    elif mode == "decrypt":
+        print("Decryption:", translated)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/Simple Substitution Cipher.py → ciphers/Simple Substitution Cipher.py b/Simple Substitution Cipher.py → ciphers/Simple Substitution Cipher.py
diff --git a/Transposition Cipher.py → ciphers/Transposition Cipher.py b/Transposition Cipher.py → ciphers/Transposition Cipher.py
diff --git a/binary_seach.py → searches/binary_search.py b/binary_seach.py → searches/binary_search.py
diff --git a/linear_search.py → searches/linear_search.py b/linear_search.py → searches/linear_search.py
diff --git a/bubble_sort.py → sorts/bubble_sort.py b/bubble_sort.py → sorts/bubble_sort.py
diff --git a/insertion_sort.py → sorts/insertion_sort.py b/insertion_sort.py → sorts/insertion_sort.py
diff --git a/merge_sort.py → sorts/merge_sort.py b/merge_sort.py → sorts/merge_sort.py
diff --git a/quick_sort.py → sorts/quick_sort.py b/quick_sort.py → sorts/quick_sort.py
diff --git a/selection_sort.py → sorts/selection_sort.py b/selection_sort.py → sorts/selection_sort.py