Check if All Characters Have Equal Number of Occurrences

Easy

Problem

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).

Input: s = "abacbc"

Output: true

The characters that appear in s are 'a', 'b', and 'c'. All characters occur 2 times in s.

Input: s = "aaabb"

Output: false

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.

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