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<div class="title">strong_number.c File Reference</div> </div>
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<p>Strong number is a number whose sum of all digits’ factorial is equal to the number n For example: 145 = 1!(1) + 4!(24) + 5!(120)
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;assert.h&gt;</code><br />
<code>#include &lt;stdbool.h&gt;</code><br />
<code>#include &lt;stdio.h&gt;</code><br />
</div><div class="textblock"><div class="dynheader">
Include dependency graph for strong_number.c:</div>
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Functions</h2></td></tr>
<tr class="memitem:a03654cadb0cfe1195810dbe5da0265b5"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/dcc/strong__number_8c.html#a03654cadb0cfe1195810dbe5da0265b5">isStrong</a> (int number)</td></tr>
<tr class="memdesc:a03654cadb0cfe1195810dbe5da0265b5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Check if given number is strong number or not. <a href="../../d4/dcc/strong__number_8c.html#a03654cadb0cfe1195810dbe5da0265b5">More...</a><br /></td></tr>
<tr class="separator:a03654cadb0cfe1195810dbe5da0265b5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae1a3968e7947464bee7714f6d43b7002"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/dcc/strong__number_8c.html#ae1a3968e7947464bee7714f6d43b7002">test</a> ()</td></tr>
<tr class="memdesc:ae1a3968e7947464bee7714f6d43b7002"><td class="mdescLeft">&#160;</td><td class="mdescRight">Test function. <a href="../../d4/dcc/strong__number_8c.html#ae1a3968e7947464bee7714f6d43b7002">More...</a><br /></td></tr>
<tr class="separator:ae1a3968e7947464bee7714f6d43b7002"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/dcc/strong__number_8c.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a> ()</td></tr>
<tr class="memdesc:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Driver Code. <a href="../../d4/dcc/strong__number_8c.html#ae66f6b31b5ad750f1fe042a706a4e3d4">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Strong number is a number whose sum of all digits’ factorial is equal to the number n For example: 145 = 1!(1) + 4!(24) + 5!(120) </p>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="a03654cadb0cfe1195810dbe5da0265b5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a03654cadb0cfe1195810dbe5da0265b5">&#9670;&nbsp;</a></span>isStrong()</h2>
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<td class="memname">bool isStrong </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>number</em></td><td>)</td>
<td></td>
</tr>
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<p>Check if given number is strong number or not. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">number</td><td></td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>true</code> if given number is strong number, otherwise <code>false</code> </dd></dl>
<div class="fragment"><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;{</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160; <span class="keywordflow">if</span> (number &lt; 0)</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; {</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160; }</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160; <span class="keywordtype">int</span> sum = 0;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; <span class="keywordtype">int</span> originalNumber = number;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; <span class="keywordflow">while</span> (originalNumber != 0)</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; {</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <span class="keywordtype">int</span> remainder = originalNumber % 10;</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; <span class="keywordtype">int</span> factorial = remainder == 0 ? 0 : 1; <span class="comment">/* 0! == 1 */</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; <span class="comment">/* calculate factorial of n */</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i &lt;= remainder; factorial *= i, i++)</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; {</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; ;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; }</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; sum += factorial;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; originalNumber /= 10;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; }</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="keywordflow">return</span> number == sum;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ae66f6b31b5ad750f1fe042a706a4e3d4">&#9670;&nbsp;</a></span>main()</h2>
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<td class="memname">int main </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<p>Driver Code. </p>
<dl class="section return"><dt>Returns</dt><dd>None </dd></dl>
<div class="fragment"><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;{</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <a class="code" href="../../d4/dcc/strong__number_8c.html#ae1a3968e7947464bee7714f6d43b7002">test</a>();</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;}</div>
<div class="ttc" id="astrong__number_8c_html_ae1a3968e7947464bee7714f6d43b7002"><div class="ttname"><a href="../../d4/dcc/strong__number_8c.html#ae1a3968e7947464bee7714f6d43b7002">test</a></div><div class="ttdeci">void test()</div><div class="ttdoc">Test function.</div><div class="ttdef"><b>Definition:</b> strong_number.c:43</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ae1a3968e7947464bee7714f6d43b7002">&#9670;&nbsp;</a></span>test()</h2>
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<td class="memname">void test </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Test function. </p>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;{</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; assert(<a class="code" href="../../d4/dcc/strong__number_8c.html#a03654cadb0cfe1195810dbe5da0265b5">isStrong</a>(145)); <span class="comment">/* 145 = 1! + 4! + 5! */</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; assert(!<a class="code" href="../../d4/dcc/strong__number_8c.html#a03654cadb0cfe1195810dbe5da0265b5">isStrong</a>(543)); <span class="comment">/* 543 != 5!+ 4! + 3! */</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;}</div>
<div class="ttc" id="astrong__number_8c_html_a03654cadb0cfe1195810dbe5da0265b5"><div class="ttname"><a href="../../d4/dcc/strong__number_8c.html#a03654cadb0cfe1195810dbe5da0265b5">isStrong</a></div><div class="ttdeci">bool isStrong(int number)</div><div class="ttdoc">Check if given number is strong number or not.</div><div class="ttdef"><b>Definition:</b> strong_number.c:15</div></div>
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