#1995Easy· asked at 4 companies
Word Pattern
Hosted on LeetCode
Solve it on LeetCode, track it here.
This problem's full statement lives on LeetCode. Open it in a new tab, then come back to mark it solved, add notes and keep your streak.
LeetCode Premium locked?
Most company-tagged LeetCode problems are behind Premium. If you have ChatGPT Plus or Claude Pro, ask it for the full statement, examples and constraints. The buttons below open a chat with the prompt already filled in.
What we know
Example 1
Input: pattern = "abba", s = "dog cat cat dog" Output: true
Example 2
Input: pattern = "abba", s = "dog cat cat fish" Output: false
Example 3
Input: pattern = "aaaa", s = "dog cat cat dog" Output: false
Constraints
- •
1 <= pattern.length <= 300 - •
patterncontains only lowercase English letters. - •
1 <= s.length <= 3000 - •
scontains only lowercase letters and spaces with no leading or trailing spaces.