[LeetCode 291] Word Pattern II

Given a pattern and a string str, find if str follows the same pattern.

Here follow means a full match, such that there is a bijection between a letter in pattern and a non-empty substring in str.

Examples:

    1. pattern = "abab", str = "redblueredblue" should return true.
    1. pattern = "aaaa", str = "asdasdasdasd" should return true.
    1. pattern = "aabb", str = "xyzabcxzyabc" should return false.

Notes:
You may assume both pattern and str contains only lowercase letters.

Diffculty
Hard

Similar Problems
[LeetCode 290] Word Pattern Easy

Analysis

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