update stickers-to-spell-word.cpp

kamyu104 · kamyu104 · commit 28557c2c42a0 · 2017-10-09T21:37:43.000+08:00
diff --git a/C++/stickers-to-spell-word.cpp b/C++/stickers-to-spell-word.cpp
@@ -1,5 +1,5 @@
 // Time:  O(T * S^T)
-// Space: O(S^T + T^2)
+// Space: O(T * S^T)
 
 class Solution {
 public:
