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49. Group Anagrams
Description
Given an array of strings strs, group the anagrams together. You can return the answer in any order.
Example 1:
Input: strs = ["eat","tea","tan","ate","nat","bat"]
Output: [["bat"],["nat","tan"],["ate","eat","tea"]]
Explanation:
- There is no string in strs that can be rearranged to form
"bat". - The strings
"nat"and"tan"are anagrams as they can be rearranged to form each other. - The strings
"ate","eat", and"tea"are anagrams as they can be rearranged to form each other.
Example 2:
Input: strs = [""]
Output: [[""]]
Example 3:
Input: strs = ["a"]
Output: [["a"]]
Constraints:
1 <= strs.length <= 1040 <= strs[i].length <= 100strs[i]consists of lowercase English letters.