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+<h2>56. Merge Intervals</h2><h3>Medium</h3><hr><div><p>Given an array&nbsp;of <code>intervals</code>&nbsp;where <code>intervals[i] = [start<sub>i</sub>, end<sub>i</sub>]</code>, merge all overlapping intervals, and return <em>an array of the non-overlapping intervals that cover all the intervals in the input</em>.</p>
+
+<p>&nbsp;</p>
+<p><strong>Example 1:</strong></p>
+
+<pre><strong>Input:</strong> intervals = [[1,3],[2,6],[8,10],[15,18]]
+<strong>Output:</strong> [[1,6],[8,10],[15,18]]
+<strong>Explanation:</strong> Since intervals [1,3] and [2,6] overlaps, merge them into [1,6].
+</pre>
+
+<p><strong>Example 2:</strong></p>
+
+<pre><strong>Input:</strong> intervals = [[1,4],[4,5]]
+<strong>Output:</strong> [[1,5]]
+<strong>Explanation:</strong> Intervals [1,4] and [4,5] are considered overlapping.
+</pre>
+
+<p>&nbsp;</p>
+<p><strong>Constraints:</strong></p>
+
+<ul>
+	<li><code>1 &lt;= intervals.length &lt;= 10<sup>4</sup></code></li>
+	<li><code>intervals[i].length == 2</code></li>
+	<li><code>0 &lt;= start<sub>i</sub> &lt;= end<sub>i</sub> &lt;= 10<sup>4</sup></code></li>
+</ul>
+</div>