首页 > TAG信息列表 > countUniqueChars
LeetCode 828. Count Unique Characters of All Substrings of a Given String
原题链接在这里：https://leetcode.com/problems/count-unique-characters-of-all-substrings-of-a-given-string/ 题目： Let's define a function countUniqueChars(s) that returns the number of unique characters on s. For example, calling countUniqueChars(s) if s =[LeetCode] 828. Count Unique Characters of All Substrings of a Given String
Let's define a function countUniqueChars(s) that returns the number of unique characters on s. For example, calling countUniqueChars(s) if s = "LEETCODE" then "L", "T", "C", "O", "D" are th