minimum-substring-partition-of-equal-character-frequency

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Algorithms

Given a string <code>s</code>, you need to partition it into one or more balanced substrings. For example, if <code>s == &quot;ababcc&quot;</code> then <code>(&quot;abab&quot;, &quot;c&quot;, &quot;c&quot;)</code>, <code>(&quot;ab&quot;, &quot;abc&quot;, &quot;c&quot;)</code>, and <code>(&quot;ababcc&quot;)</code> are all valid partitions, but <code>(&quot;a&quot;, &quot;bab&quot;, &quot;cc&quot;)</code>, <code>(&quot;aba&quot;, &quot;bc&quot;, &quot;c&quot;)</code>, and <code>(&quot;ab&quot;, &quot;abcc&quot;)</code> are not. The unbalanced substrings are bolded.

Return the minimum number of substrings that you can partition <code>s</code> into.

Note: A balanced string is a string where each character in the string occurs the same number of times.

&nbsp;
Example 1:

<div class="example-block">
Input: s = &quot;fabccddg&quot;

Output: 3

Explanation:

We can partition the string <code>s</code> into 3 substrings in one of the following ways: <code>(&quot;fab, &quot;ccdd&quot;, &quot;g&quot;)</code>, or <code>(&quot;fabc&quot;, &quot;cd&quot;, &quot;dg&quot;)</code>.
</div>

Example 2:

<div class="example-block">
Input: s = &quot;abababaccddb&quot;

Output: 2

Explanation:

We can partition the string <code>s</code> into 2 substrings like so: <code>(&quot;abab&quot;, &quot;abaccddb&quot;)</code>.
</div>

&nbsp;
Constraints:

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

minimumSubstringsInPartition

Minimum Substring Partition of Equal Character Frequency

Partition Array for Maximum Sum

partition-array-for-maximum-sum

分隔数组以得到最大和

Partition String Into Minimum Beautiful Substrings

partition-string-into-minimum-beautiful-substrings

将字符串分割为最少的美丽子字符串

Hash Table

String

Dynamic Programming

Counting

给你一个字符串&nbsp;<code>s</code>&nbsp;，你需要将它分割成一个或者更多的&nbsp;平衡&nbsp;子字符串。比方说，<code>s == "ababcc"</code>&nbsp;那么&nbsp;<code>("abab", "c", "c")</code>&nbsp;，<code>("ab", "abc", "c")</code>&nbsp;和&nbsp;<code>("ababcc")</code>&nbsp;都是合法分割，但是&nbsp;<code>("a", "bab", "cc")</code>&nbsp;，<code>("aba", "bc", "c")</code>&nbsp;和&nbsp;<code>("ab", "abcc")</code>&nbsp;不是，不平衡的子字符串用粗体表示。

请你返回 <code>s</code>&nbsp;最少 能分割成多少个平衡子字符串。

注意：一个 平衡&nbsp;字符串指的是字符串中所有字符出现的次数都相同。

&nbsp;

示例 1：

<div class="example-block">
输入：s = "fabccddg"

输出：3

解释：

我们可以将 <code>s</code>&nbsp;分割成 3 个子字符串：<code>("fab, "ccdd", "g")</code>&nbsp;或者&nbsp;<code>("fabc", "cd", "dg")</code>&nbsp;。
</div>

示例 2：

<div class="example-block">
输入：s = "abababaccddb"

输出：2

解释：

我们可以将&nbsp;<code>s</code>&nbsp;分割成 2 个子字符串：<code>("abab", "abaccddb")</code>&nbsp;。
</div>

&nbsp;

提示：

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