249. Group Shifted Strings | #15 | Hash Table Playlist

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Perform the following shift operations on a string:

Right shift: Replace every letter with the successive letter of the English alphabet, where 'z' is replaced by 'a'. For example, "abc" can be right-shifted to "bcd" or "xyz" can be right-shifted to "yza".
Left shift: Replace every letter with the preceding letter of the English alphabet, where 'a' is replaced by 'z'. For example, "bcd" can be left-shifted to "abc" or "yza" can be left-shifted to "xyz".
We can keep shifting the string in both directions to form an endless shifting sequence.

You are given an array of strings strings, group together all strings[i] that belong to the same shifting sequence. You may return the answer in any order.

CHAPTERS
0:00 Introduction
0:30 Question Explanation
2:23 Intuition and theory
7:10 Optimised solution
15:59 Live coding Solution I
18:17 Live coding Solution II


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