Leetcode Problem 893. Groups of Special-Equivalent Strings
Leetcode Solutions
Sorting Even and Odd Indexed Characters
- Initialize an empty set to store unique signatures of the strings.
- Iterate over each string in the input list
words. - For each string, separate the characters at even indices and the characters at odd indices.
- Sort both the even-indexed characters and the odd-indexed characters.
- Concatenate the sorted even-indexed characters with the sorted odd-indexed characters to form the signature.
- Add the signature to the set.
- After processing all strings, return the size of the set, which represents the number of unique groups.
Frequency Counting of Even and Odd Indexed Characters
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