Update scramble-string.py

kamyu104 · kamyu104 · commit dc809bf4fa0f · 2015-06-03T18:26:35.000+08:00
diff --git a/Python/scramble-string.py b/Python/scramble-string.py
@@ -47,7 +47,7 @@ class Solution:
     def isScramble(self, s1, s2):
         if not s1 or not s2 or len(s1) != len(s2):
             return False
-        if not s1:
+        if s1 == "":
             return True
         result = [[[False for j in xrange(len(s2))] for i in xrange(len(s1))] for n in xrange(len(s1) + 1)]
         for i in xrange(len(s1)):
