Create group-anagrams.md

problems/group-anagrams.md

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+Given an array of strings strs, group the anagrams together. You can return the answer in any order.
+
+An Anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once.
+
+
+
+Example 1:
+```
+Input: strs = ["eat","tea","tan","ate","nat","bat"]
+Output: [["bat"],["nat","tan"],["ate","eat","tea"]]
+```
+Example 2:
+```
+Input: strs = [""]
+Output: [[""]]
+```
+Example 3:
+```
+Input: strs = ["a"]
+Output: [["a"]]
+ ```
+
+Constraints:
+```
+1 <= strs.length <= 104
+0 <= strs[i].length <= 100
+strs[i] consists of lowercase English letters.
+```