828. 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 if s = "LEETCODE" then "L", "T","C","O","D" are the unique characters
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Here is the Java program to find the duplicate word which has occurred a maximum number of times in a file. You can also print the frequency of words from highest to lowest because you have the Map, which contains the word and their count in sorted order. All you need to do isiterate...