leetcode -- Regular Expression Matching -- dp 重点思路1 递归思路2: dp重写code
https://leetcode.com/problems/regular-expression-matching/trick: 如果有两个str list, 考虑用2D dp[i][j]思路1 递归pyton TLE思路2: dp思路参考http://bangbingsyb.blogspot.hk/2014/11/leetcode-regular-expression-matching.html关
