Leetcode 87 solution can not pass currently

[zhfkt]

LeetCode/Recursion/087.Scramble-String/087.Scramble-String.cpp

Line 1 in 718bd0d

 class Solution { 

It failed on the following Test Case (286 / 288 passed):

"eebaacbcbcadaaedceaaacadccd"
"eadcaacabaddaceacbceaabeccd"

I checked we may use 3-dim dp or memory recursion instead on this solution

[wisdompeak]

谢谢提醒，已经更新代码。