Group Anagrams

Problem: Group Anagrams

We just calculate alphabet of each string and hash it into right alphabet in table.

Code in Python:

class Solution(object):
    def groupAnagrams(self, strs):
        """
        :type strs: List[str]
        :rtype: List[List[str]]
        """
        strs.sort()
        dict = {}
        for string in strs:
            key = str(sorted(string))
            if key not in dict: dict[key] = [string]
            else: dict[key].append(string)
        return [value for value in dict.values()]