Update random-flip-matrix.cpp

kamyu104 · web-flow · commit 3fb0d82062c5 · 2018-07-29T02:29:36.000+08:00
diff --git a/C++/random-flip-matrix.cpp b/C++/random-flip-matrix.cpp
@@ -1,4 +1,6 @@
-// Time:  O(1)
+// Time:  ctor:  O(1)
+//        flip:  O(1)
+//        reset: O(min(f, r * c))
 // Space: O(min(f, r * c))
 
 class Solution {
