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<p>A happy number is a number whose sum of digits is calculated until the sum is a single digit, and this sum turns out to be 1.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;iostream&gt;</code><br />
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Include dependency graph for happy_number.cpp:</div>
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Functions</h2></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>A happy number is a number whose sum of digits is calculated until the sum is a single digit, and this sum turns out to be 1. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a00ccdb1166a7c83ac3c33ac67a2532b7">&#9670;&nbsp;</a></span>is_happy()</h2>
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<p>Checks if a decimal number is a happy number </p><dl class="section return"><dt>Returns</dt><dd>true if happy else false </dd></dl>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; T s = 0; <span class="comment">// stores sum of digits</span></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ae66f6b31b5ad750f1fe042a706a4e3d4">&#9670;&nbsp;</a></span>main()</h2>
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