192. Wildcard Matching

Description

Implement wildcard pattern matching with support for '?' and '*'.

'?' Matches any single character.

'*' Matches any sequence of characters (including the empty sequence).

The matching should cover the entire input string (not partial).

Example

Example 1

Input:

"aa"

"a"

Output: false

Example 2

Input:

"aa"

"aa"

Output: true

Example 3

Input:

"aaa"

"aa"

Output: false

Example 4

Input:

"aa"

"*"

Output: true

Explanation: '*' can replace any string

Example 5

Input:

"aa"

"a*"

Output: true

Example 6

Input:

"ab"

"?*"

Output: true

Explanation: '?' -> 'a' '*' -> 'b'

Example 7

Input:

"aab"

"c*a*b"

Output: false

思路：

基于记忆化搜索的dfs， 递归的结束条件有点难想，各种情况。

代码：