{ "data": { "question": { "questionId": "1890", "questionFrontendId": "1781", "categoryTitle": "Algorithms", "boundTopicId": 632717, "title": "Sum of Beauty of All Substrings", "titleSlug": "sum-of-beauty-of-all-substrings", "content": "

The beauty of a string is the difference in frequencies between the most frequent and least frequent characters.

\n\n\n\n

Given a string s, return the sum of beauty of all of its substrings.

\n\n

 

\n

Example 1:

\n\n
\nInput: s = "aabcb"\nOutput: 5\nExplanation: The substrings with non-zero beauty are ["aab","aabc","aabcb","abcb","bcb"], each with beauty equal to 1.
\n\n

Example 2:

\n\n
\nInput: s = "aabcbaa"\nOutput: 17\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "所有子字符串美丽值之和", "translatedContent": "

一个字符串的 美丽值 定义为：出现频率最高字符与出现频率最低字符的出现次数之差。

\n\n\n\n

给你一个字符串 s ，请你返回它所有子字符串的 美丽值 之和。

\n\n

 

\n\n

示例 1：

\n\n
\n输入：s = \"aabcb\"\n输出：5\n解释：美丽值不为零的字符串包括 [\"aab\",\"aabc\",\"aabcb\",\"abcb\",\"bcb\"] ，每一个字符串的美丽值都为 1 。
\n\n

示例 2：

\n\n
\n输入：s = \"aabcbaa\"\n输出：17\n
\n\n

 

\n\n

提示：

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