Leetcode 2506. Count Pairs Of Similar Strings
Count the number of pairs of words that contain exactly the same set of unique characters (order and frequency don't matter). Group words by their character-set signature (e.g., set or bitmask) and sum the pair counts for equal signatures.
Question Timeline
See when this question was last asked and where, including any notes left by other candidates.
All Regions
Hello Interview Premium
Your account is free and you can post anonymously if you choose.