leetcode - Wildcard Matching
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
class Solution { public: bool isMatch(const char *s, const char *p) { const char* star=NULL; const char* t=s; while (*s) { if ((*p=='?')||(*p==*s)) { s++; p++; continue; } if (*p=='*') { star=p++; t=s; continue; } if (star) { p = star+1; s=++t; continue; } return false; } while (*p == '*') { p++; } return !*p; } };