Solution: Group Anagrams
Explore how to group strings that are anagrams by using a frequency mapping approach. Understand building hash maps keyed by character counts to efficiently identify anagram groups. This method reduces time complexity compared to sorting each string, helping you solve anagrams in coding interviews with optimized performance.
Statement
Given a list of strings strs, group together all strings that are anagrams of each other.
An anagram is a string formed by rearranging the letters of another string, using all original letters exactly once. For example, “eat”, “tea”, and “ate” are anagrams.
Return a list of groups, where each group contains strings that are anagrams of each other.
Note: The order of the groups and the order of strings within each group does not matter.
Constraints:
Let strs be the list of strings given as input to find the anagrams.
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strs.length