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added a parsons problem to section 4.4 #371

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56 changes: 55 additions & 1 deletion pretext/Functions/FunctionOverloading.ptx
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Expand Up @@ -141,7 +141,61 @@ main()
that are correct and only modifying one character in the best string so far.
This is a type of algorithm in the class of ‘hill climbing' algorithms, that
is we only keep the result if it is better than the previous one.</p>
</exercise>
</exercise>

<exercise xml:id="cpp-overloading-parsons-exercise" label="cpp-overloading-parsons">
<statement>
<p>
Construct a C++ program that overloads a function called <c>myfunct</c> so it works
with either one or two integer parameters. Drag the blocks into the correct order on the right.
</p>
</statement>
<blocks>
<block order="1">
<cline>#include &lt;iostream&gt;</cline>
<cline>using namespace std;</cline>
</block>

<block order="2">
<choice correct="yes">
<cline>void myfunct(int n) {</cline>
<cline> cout &lt;&lt; "1 parameter: " &lt;&lt; n &lt;&lt; endl;</cline>
<cline>}</cline>
</choice>
<choice correct="no">
<cline>void myfunct(int n) {</cline>
<cline> cout &lt;&lt; "1 parameter: " &lt;&lt; n &lt;&lt; endl;</cline>
</choice>
</block>

<block order="3">
<choice correct="yes">
<cline>void myfunct(int n, int m) {</cline>
<cline> cout &lt;&lt; "2 parameters: " &lt;&lt; n &lt;&lt; " and " &lt;&lt; m &lt;&lt; endl;</cline>
<cline>}</cline>
</choice>
<choice correct="no">
<cline>void myfunct(int n) {</cline>
<cline> cout &lt;&lt; "2 parameters: " &lt;&lt; n &lt;&lt; " and " &lt;&lt; m &lt;&lt; endl;</cline>
<cline>}</cline>
</choice>
</block>

<block order="4">
<cline>int main() {</cline>
</block>

<block order="5">
<cline> myfunct(4);</cline>
<cline> myfunct(5, 6);</cline>
</block>

<block order="6">
<cline> return 0;</cline>
<cline>}</cline>
</block>
</blocks>
</exercise>
</reading-questions>
</section>