 [first2, last2) from the sorted range [first1, last1) and stores it in range starting at result 

Space complexity: (2(distance(<code class="computeroutput">first1</code>, <code class="computeroutput">last1</code>) + distance(<code class="computeroutput">first2</code>, <code class="computeroutput">last2</code>))) </p>
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<td><p><span class="term">Parameters:</span