Solution: Similar String Groups
Understand how to solve the Similar String Groups problem using the Union Find data structure. Explore how to define string similarity based on allowed character swaps, connect similar strings in groups, and efficiently find the number of such groups. This lesson guides you through implementing the solution with time and space complexity considerations.
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Statement
Two strings x and y are considered similar if they are either exactly the same or can be made identical by swapping at most two different characters in string x.
We define a similarity group as a set of strings where each string is similar to at least one other string in the group. A string doesn't need to be directly similar to every other string in the group — it just needs to be connected to them through a chain of similarities.
Given a list of strings strs, where each string is an anagram of the others, your task is to determine how many such similarity groups exist in the list.
Constraints:
strs.lengthstrs[i].lengthstrs[i]consists of lowercase letters only. ...