diff --git a/NeetCodeRoadmap/Arrays_and_Hashing/Encode_Decode_Strings.py b/NeetCodeRoadmap/Arrays_and_Hashing/Encode_Decode_Strings.py
index e4c3aec..bfd72da 100644
--- a/NeetCodeRoadmap/Arrays_and_Hashing/Encode_Decode_Strings.py
+++ b/NeetCodeRoadmap/Arrays_and_Hashing/Encode_Decode_Strings.py
@@ -1,9 +1,14 @@
-def encode(self, strs):
+def encode(strs):
     # write your code here
+    key = []
+    encode = []
+    for x in strs:
+        if x in key:
+            encode.append(x)
 
 """
 @param: str: A string
 @return: decodes a single string to a list of strings
 """
-def decode(self, str):
+def decode(str):
     # write your code here
\ No newline at end of file