encode and decode strings solution

Author: devyejin

encode-and-decode-strings/devyejin.py

@@ -0,0 +1,33 @@
+class Solution:
+    """
+    @param: strs: a list of strings
+    @return: encodes a list of strings to a single string.
+    """
+
+    def encode(self, strs):
+        # write your code here
+        result = ""
+        for s in strs:
+            result += str(len(s)) + "@" + s
+        return result
+
+    """
+    @param: str: A string
+    @return: decodes a single string to a list of strings
+    """
+
+    def decode(self, str):
+        # write your code here
+        result = []
+        i = 0
+        while i < len(str):
+            j = i
+            # 시작점 아닌 경우
+            while str[j] != "@":
+                j += 1
+            # 시작점인 경우
+            length = int(str[i:j])
+            word = str[j + 1: j + 1 + length]
+            result.append(word)
+            i = j + 1 + length
+        return result