Group Anagrams Made Simple | LeetCode #49 (Medium)
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Group Anagrams Made Simple | LeetCode #49 (Medium)
34 просмотра · 1 день назад
MaxCodes
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34 просмотра · 1 день назад
In Episode 11 of my LeetCode a Day series, I solve LeetCode #49 — Group Anagrams in Java.
This problem is a good introduction to combining HashMaps, Lists, and string sorting to group related values together.
Problem: Group Anagrams
Language: Java
Difficulty: Medium
Topics: HashMap, Strings, Arrays, Sorting
My Approach:
I sort the characters of each string to create a consistent signature. Anagrams produce the same sorted string, so I use that signature as the key in a HashMap and added each original word to its matching group.
Time Complexity: O(n × k log k)
Space Complexity: O(n × k)
Where n is the number of strings and k is the average/max string length.
#leetcode #java #coding #programming #dsa #hashmap #softwareengineering