Wildcard Matching LeetCode Programming Solutions | LeetCode Problem Solutions in C++, Java, & Python [💯Correct]

by
LeetCode Programming Solution in C++, Java, & Python | LeetCode All Problem Solutions [Latest Update‼️]

LeetCode Problem | LeetCode Problems For Beginners | LeetCode Problems & Solutions | Improve Problem Solving Skills | LeetCode Problems Java | LeetCode Problems C++

Hello Programmers/Coders, Today we are going to share solutions to the Programming problems of LeetCode Solutions in C++, Java, & Python. At Each Problem with Successful submission with all Test Cases Passed, you will get a score or marks and LeetCode Coins. And after solving maximum problems, you will be getting stars. This will highlight your profile to the recruiters.

In this post, you will find the solution for the Wildcard Matching in C++, Java & Python-LeetCode problem. We are providing the correct and tested solutions to coding problems present on LeetCode. If you are not able to solve any problem, then you can take help from our Blog/website.

Use “Ctrl+F” To Find Any Questions Answer. & For Mobile User, You Just Need To Click On Three dots In Your Browser & You Will Get A “Find” Option There. Use These Option to Get Any Random Questions Answer.

About LeetCode

LeetCode is one of the most well-known online judge platforms to help you enhance your skills, expand your knowledge and prepare for technical interviews. 

LeetCode is for software engineers who are looking to practice technical questions and advance their skills. Mastering the questions in each level on LeetCode is a good way to prepare for technical interviews and keep your skills sharp. They also have a repository of solutions with the reasoning behind each step.

LeetCode has over 1,900 questions for you to practice, covering many different programming concepts. Every coding problem has a classification of either Easy, Medium, or Hard.

LeetCode problems focus on algorithms and data structures. Here is some topic you can find problems on LeetCode:

  • Mathematics/Basic Logical Based Questions
  • Arrays
  • Strings
  • Hash Table
  • Dynamic Programming
  • Stack & Queue
  • Trees & Graphs
  • Greedy Algorithms
  • Breadth-First Search
  • Depth-First Search
  • Sorting & Searching
  • BST (Binary Search Tree)
  • Database
  • Linked List
  • Recursion, etc.

Leetcode has a huge number of test cases and questions from interviews too like Google, Amazon, Microsoft, Facebook, Adobe, Oracle, Linkedin, Goldman Sachs, etc. LeetCode helps you in getting a job in Top MNCs. To crack FAANG Companies, LeetCode problems can help you in building your logic.

Link for the Problem – Wildcard Matching– LeetCode Problem

Wildcard Matching– LeetCode Problem

Problem:

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 '*'.
Wildcard Matching– LeetCode Solutions
Wildcard Matching in C++
class Solution {
 public:
  bool isMatch(string s, string p) {
    const int m = s.length();
    const int n = p.length();

    // dp[i][j] := true if s[0..i) matches p[0..j)
    vector<vector<bool>> dp(m + 1, vector<bool>(n + 1));
    dp[0][0] = true;

    auto isMatch = [](char c1, char c2) { return c1 == c2 || c2 == '?'; };

    for (int i = 0; i <= m; ++i)
      for (int j = 1; j <= n; ++j)
        if (p[j - 1] == '*') {
          const bool matchEmpty = dp[i][j - 1];
          const bool matchNew = i && dp[i - 1][j];
          dp[i][j] = matchEmpty || matchNew;
        } else {
          dp[i][j] = i && isMatch(s[i - 1], p[j - 1]) && dp[i - 1][j - 1];
        }

    return dp[m][n];
  }
};
Wildcard Matching in Java
class Solution {
  public boolean isMatch(String s, String p) {
    final int m = s.length();
    final int n = p.length();

    // dp[i][j] := true if s[0..i) matches p[0..j)
    boolean[][] dp = new boolean[m + 1][n + 1];
    dp[0][0] = true;

    for (int i = 0; i <= m; ++i)
      for (int j = 1; j <= n; ++j)
        if (p.charAt(j - 1) == '*') {
          final boolean matchEmpty = dp[i][j - 1];
          final boolean matchNew = i > 0 && dp[i - 1][j];
          dp[i][j] = matchEmpty || matchNew;
        } else {
          dp[i][j] = i > 0 && isMatch(s.charAt(i - 1), p.charAt(j - 1)) && dp[i - 1][j - 1];
        }

    return dp[m][n];
  }

  private boolean isMatch(char c1, char c2) {
    return c1 == c2 || c2 == '?';
  }
}
Wildcard Matching in Python
class Solution:
  def isMatch(self, s: str, p: str) -> bool:
    m = len(s)
    n = len(p)

    # dp[i][j] := true if s[0..i) matches p[0..j)
    dp = [[False] * (n + 1) for _ in range(m + 1)]
    dp[0][0] = True

    def isMatch(c1: chr, c2: chr) -> bool:
      return c1 == c2 or c2 == '?'

    for i in range(m + 1):
      for j in range(1, n + 1):
        if p[j - 1] == '*':
          matchEmpty = dp[i][j - 1]
          matchNew = i and dp[i - 1][j]
          dp[i][j] = matchEmpty or matchNew
        else:
          dp[i][j] = i and isMatch(s[i - 1], p[j - 1]) and dp[i-1][j-1]

    return dp[m][n]

298 thoughts on “Wildcard Matching LeetCode Programming Solutions | LeetCode Problem Solutions in C++, Java, & Python [💯Correct]”

  101. To announce actual news, adhere to these tips:

    Look for credible sources: https://www.wellpleased.co.uk/wp-content/pages/which-technique-is-the-most-effective-for.html. It’s high-ranking to guard that the expos‚ source you are reading is reliable and unbiased. Some examples of reliable sources categorize BBC, Reuters, and The Fashionable York Times. Read multiple sources to get back at a well-rounded aspect of a precisely statement event. This can better you carp a more ended picture and avoid bias. Be in the know of the viewpoint the article is coming from, as set reputable report sources can compel ought to bias. Fact-check the low-down with another origin if a scandal article seems too sensational or unbelievable. Always pass sure you are reading a advised article, as scandal can change quickly.

    Close to following these tips, you can evolve into a more au fait news reader and better know the world about you.

    Reply

  106. Positively! Finding info portals in the UK can be overwhelming, but there are many resources accessible to help you espy the unexcelled identical because you. As I mentioned before, conducting an online search with a view https://morevoucher.co.uk/js/pages/1how-old-is-jean-enersen-king-5-news.html “UK newsflash websites” or “British intelligence portals” is a vast starting point. Not no more than purposefulness this hand out you a comprehensive list of report websites, but it intention also provide you with a punter savvy comprehension or of the common story prospect in the UK.
    Aeons ago you be enduring a file of potential news portals, it’s prominent to gauge each undivided to determine which upper-class suits your preferences. As an case, BBC News is known in place of its intention reporting of news stories, while The Custodian is known pro its in-depth criticism of partisan and popular issues. The Disinterested is known for its investigative journalism, while The Times is known for its work and finance coverage. Not later than arrangement these differences, you can select the rumour portal that caters to your interests and provides you with the hearsay you want to read.
    Additionally, it’s worth all things close by expos‚ portals representing specific regions within the UK. These portals provide coverage of events and good copy stories that are applicable to the область, which can be firstly cooperative if you’re looking to charge of up with events in your neighbourhood pub community. In behalf of event, provincial good copy portals in London contain the Evening Pier and the Londonist, while Manchester Evening Talk and Liverpool Reflection are hot in the North West.
    Overall, there are tons bulletin portals available in the UK, and it’s high-ranking to do your research to see the one that suits your needs. By means of evaluating the contrasting news programme portals based on their coverage, style, and article standpoint, you can decide the individual that provides you with the most apposite and captivating low-down stories. Meet luck with your search, and I anticipate this bumf helps you reveal the just right news portal inasmuch as you!

    Reply

Leave a Comment

Ads Blocker Image Powered by Code Help Pro

Ads Blocker Detected!!!

We have detected that you are using extensions to block ads. Please support us by disabling these ads blocker🙏.