update 14

leetcode/14.py

@@ -4,18 +4,17 @@
 # only lowercase
 class Solution:
     def longestCommonPrefix(self, strs: list[str]) -> str:
-    returnString = ""
-    index = 0
-    while i < len(str[0]):
+        return_string = ""
+        i = 0
+        while i < len(strs[0]):
             try:
                 for string in strs:
-                if string[i] == strs[0][i]:
-                    i += 1
-                    returnString += string[i]
-                else:
+                    if string[i] != strs[0][i]:
                         break
+
+                i += 1
+                return_string += strs[0][i]
             except:
                 break
 
-    return returnString
-
+        return return_string