1941. Check if All Characters Have Equal Number of Occurrences

https://leetcode.com/problems/check-if-all-characters-have-equal-number-of-occurrences

Description

Given a string s, return true if s is a good string, or false otherwise.

A string s is good if all the characters that appear in s have the same number of occurrences (i.e., the same frequency).

Example 1:

**Input:** s = "abacbc"
**Output:** true
**Explanation:** The characters that appear in s are 'a', 'b', and 'c'. All characters occur 2 times in s.

Example 2:

**Input:** s = "aaabb"
**Output:** false
**Explanation:** The characters that appear in s are 'a' and 'b'.
'a' occurs 3 times while 'b' occurs 2 times, which is not the same number of times.

Constraints:

• 1 <= s.length <= 1000

• s consists of lowercase English letters.

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