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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.

Example 1:

Input: pattern = "abab", str = "redblueredblue"
Output: true

Example 2:

Input: pattern = pattern = "aaaa", str = "asdasdasdasd"
Output: true

Example 3:

Input: pattern = "aabb", str = "xyzabcxzyabc"
Output: false

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

Difficulty:

Hard

Lock:

Prime

Company:

Dropbox Facebook Pony.ai Uber