Grokking the Coding Interview: Patterns for Coding Questions

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Group Anagrams (Medium)

Problem Statement

Given a list of strings, the task is to group the anagrams together.

An anagram is a word or phrase formed by rearranging the letters of another, such as "cinema", formed from "iceman".

Example Generation

Example 1:

Input: ["dog", "god", "hello"]
Output: [["dog", "god"], ["hello"]]
Justification: "dog" and "god" are anagrams, so they are grouped together. "hello" does not have any anagrams in the list, so it is in its own group.

Example 2:

Input: ["listen", "silent", "enlist"]
Output: [["listen", "silent", "enlist"]]

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