Leetcode or Die: #242 Valid Anagram and #290 Word Pattern

Leetcode or Die: #Top150 #interviewprep

#242 Valid Anagram
Given two strings s and t, return true if t is an anagram of s, and false otherwise.

#290 Word Pattern
Given a pattern and a string s, find if s 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 word in s. Specifically:
Each letter in pattern maps to exactly one unique word in s.
Each unique word in s maps to exactly one letter in pattern.
No two letters map to the same word, and no two words map to the same letter.

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