[LeetCode] Unique Substrings in Wraparound String 封裝字符串中的獨特子字符串
Consider the string s to be the infinite wraparound string of "abcdefghijklmnopqrstuvwxyz", so s will look like ...
原文：[LeetCode] 828. Count Unique Characters of All Substrings of a Given String 統計給定字符串的所有子串的獨特字符
Let s define a function countUniqueChars s that returns the number of unique characters on s , for example if s LEETCODE then L , T , C , O , D are the unique characters since they appear only once i ...
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