check-if-all-characters-have-equal-number-of-occurrences

java

python

python3

mysql

mssql

oraclesql

csharp

javascript

typescript

bash

swift

kotlin

dart

golang

ruby

scala

rust

racket

erlang

elixir

pythondata

postgresql

cangjie

Algorithms

Given a string <code>s</code>, return <code>true</code> if <code>s</code> is a good string, or <code>false</code> otherwise.

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

&nbsp;
Example 1:

<pre>
Input: s = &quot;abacbc&quot;
Output: true
Explanation: The characters that appear in s are &#39;a&#39;, &#39;b&#39;, and &#39;c&#39;. All characters occur 2 times in s.
</pre>

Example 2:

<pre>
Input: s = &quot;aaabb&quot;
Output: false
Explanation: The characters that appear in s are &#39;a&#39; and &#39;b&#39;.
&#39;a&#39; occurs 3 times while &#39;b&#39; occurs 2 times, which is not the same number of times.
</pre>

&nbsp;
Constraints:

<ul>
	<li><code>1 &lt;= s.length &lt;= 1000</code></li>
	<li><code>s</code> consists of lowercase English letters.</li>
</ul>

areOccurrencesEqual

Check if All Characters Have Equal Number of Occurrences

Rings and Rods

rings-and-rods

环和杆

Make Number of Distinct Characters Equal

make-number-of-distinct-characters-equal

使字符串中不同字符的数目相等

Hash Table

String

Counting

给你一个字符串 <code>s</code> ，如果 <code>s</code> 是一个 好 字符串，请你返回 <code>true</code> ，否则请返回 <code>false</code> 。

如果 <code>s</code> 中出现过的 所有 字符的出现次数 相同 ，那么我们称字符串 <code>s</code> 是 好 字符串。

 

示例 1：

<pre>输入：s = "abacbc"
输出：true
解释：s 中出现过的字符为 'a'，'b' 和 'c' 。s 中所有字符均出现 2 次。
</pre>

示例 2：

<pre>输入：s = "aaabb"
输出：false
解释：s 中出现过的字符为 'a' 和 'b' 。
'a' 出现了 3 次，'b' 出现了 2 次，两者出现次数不同。
</pre>

 

提示：

<ul>
	<li><code>1 &lt;= s.length &lt;= 1000</code></li>
	<li><code>s</code> 只包含小写英文字母。</li>
</ul>