as mesured by code compiled using <code>Xcode11.1</code> and <code>Swift 5.1</code> with <code>-O</code> optimization and run on <code>iPhone11 Pro simulator</code>.<br>
Use <code>Foundation.UUID</code> as an element of collections.  </p>
<h4 id='from-5-000-elements-to-1-000-deleted-1-000-inserted-and-200-shuffled' class='heading'>- From 5,000 elements to 1,000 deleted, 1,000 inserted and 200 shuffled</h4>

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<th style="text-align: right">Time(sec)</th>
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