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Back to Problems

44. Wildcard Matching

Hard28.9% Acceptance
StringDynamic ProgrammingGreedy
Asked by:
M
Microsoft
A
Amazon
G
Google
F
Facebook
U
Uber
+1

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Companies (6)

Given an input string (s) and a pattern (p), implement wildcard pattern matching with support for '?' and '*' where:

  • '?' Matches any single character.
  • '*' Matches any sequence of characters (including the empty sequence).

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

Example 1:

Input: s = "aa", p = "a"
Output: false
Explanation: "a" does not match the entire string "aa".

Example 2:

Input: s = "aa", p = "*"
Output: true
Explanation: '*' matches any sequence.

Example 3:

Input: s = "cb", p = "?a"
Output: false
Explanation: '?' matches 'c', but the second letter is 'a', which does not match 'b'.

Constraints:

  • 0 <= s.length, p.length <= 2000
  • s contains only lowercase English letters.
  • p contains only lowercase English letters, '?' or '*'.

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Similar Problems

Related Topics

StringDynamic ProgrammingGreedyRecursion

Problem Stats

Acceptance Rate28.9%
DifficultyHard
Companies6

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