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Wildcard Matching

时间:2014-09-01 19:34:43      阅读:224      评论:0      收藏:0      [点我收藏+]

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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).

The function prototype should be:
bool isMatch(const char *s, const char *p)

Some examples:
isMatch("aa","a") → false
isMatch("aa","aa") → true
isMatch("aaa","aa") → false
isMatch("aa", "*") → true
isMatch("aa", "a*") → true
isMatch("ab", "?*") → true
isMatch("aab", "c*a*b") → false

思路:

 1 class Solution {
 2 public:
 3     bool isMatch( const char *s, const char *p ) {
 4         const char *star = 0, *ss = s;
 5         while( *s )
 6         {
 7             if( *p == ? || *p == *s ) { ++s; ++p; continue; }
 8             if( *p == * ) { star = p++; ss = s; continue; }
 9             if( star ) { p = star + 1; s = ++ss; continue; }
10             return false;
11         }
12         while( *p == * ){ ++p; }
13         return !*p;
14     }
15 };

 

Wildcard Matching

标签:style   blog   color   io   ar   for   art   div   cti   

原文地址:http://www.cnblogs.com/moderate-fish/p/3940429.html

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