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leetcode/problem/maximum-number-of-non-overlapping-substrings.html
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<p>Given a string <code>s</code>&nbsp;of lowercase letters, you need to find the maximum number of <strong>non-empty</strong> substrings of&nbsp;<code>s</code>&nbsp;that meet the following conditions:</p>
<p>Given a string <code>s</code> of lowercase letters, you need to find the maximum number of <strong>non-empty</strong> substrings of <code>s</code> that meet the following conditions:</p>
<ol>
<li>The substrings do not overlap, that is for any two substrings <code>s[i..j]</code> and <code>s[k..l]</code>, either <code>j &lt; k</code> or <code>i &gt; l</code>&nbsp;is true.</li>
<li>A substring that contains a certain character&nbsp;<code>c</code>&nbsp;must also contain all occurrences of <code>c</code>.</li>
<li>The substrings do not overlap, that is for any two substrings <code>s[i..j]</code> and <code>s[x..y]</code>, either <code>j &lt; x</code> or <code>i &gt; y</code> is true.</li>
<li>A substring that contains a certain character <code>c</code> must also contain all occurrences of <code>c</code>.</li>
</ol>
<p>Find <em>the maximum number of substrings that meet the above conditions</em>. If there are multiple solutions with the same number of substrings, <em>return the one with minimum total length.&nbsp;</em>It can be shown that there exists a unique solution of minimum total length.</p>
<p>Find <em>the maximum number of substrings that meet the above conditions</em>. If there are multiple solutions with the same number of substrings, <em>return the one with minimum total length. </em>It can be shown that there exists a unique solution of minimum total length.</p>
<p>Notice that you can return the substrings in <strong>any</strong> order.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> s = &quot;adefaddaccc&quot;
@@ -27,7 +27,7 @@
If we choose the first string, we cannot choose anything else and we&#39;d get only 1. If we choose &quot;adefadda&quot;, we are left with &quot;ccc&quot; which is the only one that doesn&#39;t overlap, thus obtaining 2 substrings. Notice also, that it&#39;s not optimal to choose &quot;ef&quot; since it can be split into two. Therefore, the optimal way is to choose [&quot;e&quot;,&quot;f&quot;,&quot;ccc&quot;] which gives us 3 substrings. No other solution of the same number of substrings exist.
</pre>
<p><strong>Example 2:</strong></p>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> s = &quot;abbaccd&quot;
@@ -39,6 +39,6 @@ If we choose the first string, we cannot choose anything else and we&#39;d get o
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 &lt;= s.length &lt;= 10^5</code></li>
<li><code>s</code>&nbsp;contains only lowercase English letters.</li>
<li><code>1 &lt;= s.length &lt;= 10<sup>5</sup></code></li>
<li><code>s</code> contains only lowercase English letters.</li>
</ul>