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&#160;<span id="projectnumber">1.0.0</span>
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<div id="projectbrief">Set of algorithms implemented in C.</div>
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<a href="#define-members">Macros</a> &#124;
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<p><a href="https://projecteuler.net/problem=13">Problem 13</a> solution
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;stdint.h&gt;</code><br />
<code>#include &lt;stdio.h&gt;</code><br />
<code>#include &lt;stdlib.h&gt;</code><br />
<code>#include &lt;string.h&gt;</code><br />
</div><div class="textblock"><div class="dynheader">
Include dependency graph for sol1.c:</div>
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Macros</h2></td></tr>
<tr class="memitem:a0240ac851181b84ac374872dc5434ee4"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a>&#160;&#160;&#160;10</td></tr>
<tr class="separator:a0240ac851181b84ac374872dc5434ee4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acd864640121c7df2c19f61f7baa507e4"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d01/problem__13_2sol1_8c.html#acd864640121c7df2c19f61f7baa507e4">N2</a>&#160;&#160;&#160;(<a class="el" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a> + 10)</td></tr>
<tr class="separator:acd864640121c7df2c19f61f7baa507e4"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ac260f58785fb20eb09bb35385a7d47f8"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d01/problem__13_2sol1_8c.html#ac260f58785fb20eb09bb35385a7d47f8">get_number</a> (FILE *fp, char *buffer, uint8_t *out_int)</td></tr>
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<tr class="memitem:ad51742ca5a5c99e860bdf30299163bf2"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d01/problem__13_2sol1_8c.html#ad51742ca5a5c99e860bdf30299163bf2">add_numbers</a> (uint8_t *a, uint8_t *b, uint8_t <a class="el" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a>)</td></tr>
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<tr class="memitem:a248adc917818cc6666d8bc679a660319"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d01/problem__13_2sol1_8c.html#a248adc917818cc6666d8bc679a660319">print_number</a> (uint8_t *number, uint8_t <a class="el" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a>, int8_t num_digits_to_print)</td></tr>
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<tr class="memitem:a840291bc02cba5474a4cb46a9b9566fe"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d01/problem__13_2sol1_8c.html#a840291bc02cba5474a4cb46a9b9566fe">main</a> (void)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a href="https://projecteuler.net/problem=13">Problem 13</a> solution </p>
<dl class="section author"><dt>Author</dt><dd><a href="https://github.com/kvedala">Krishna Vedala</a> </dd></dl>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="a0240ac851181b84ac374872dc5434ee4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0240ac851181b84ac374872dc5434ee4">&#9670;&nbsp;</a></span>N</h2>
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<td class="memname">#define N&#160;&#160;&#160;10</td>
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<p>number of digits of the large number </p>
</div>
</div>
<a id="acd864640121c7df2c19f61f7baa507e4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acd864640121c7df2c19f61f7baa507e4">&#9670;&nbsp;</a></span>N2</h2>
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<td class="memname">#define N2&#160;&#160;&#160;(<a class="el" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a> + 10)</td>
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<p>number of digits in output number </p>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="ad51742ca5a5c99e860bdf30299163bf2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad51742ca5a5c99e860bdf30299163bf2">&#9670;&nbsp;</a></span>add_numbers()</h2>
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<td class="memname">int add_numbers </td>
<td>(</td>
<td class="paramtype">uint8_t *&#160;</td>
<td class="paramname"><em>a</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t *&#160;</td>
<td class="paramname"><em>b</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t&#160;</td>
<td class="paramname"><em>N</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Function to add arbitraty length decimal integers stored in an array. a + b = c = new b </p>
<div class="fragment"><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;{</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="keywordtype">int</span> carry = 0;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; uint8_t *c = b; <span class="comment">/* accumulate the result in the array &#39;b&#39; */</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a>; i++)</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; {</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="comment">// printf(&quot;\t%d + %d + %d &quot;, a[i], b[i], carry);</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; c[i] = carry + a[i] + b[i];</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keywordflow">if</span> (c[i] &gt; 9) <span class="comment">/* check for carry */</span></div>
<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; carry = 1;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; c[i] -= 10;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; }</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; carry = 0;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="comment">// printf(&quot;= %d, %d\n&quot;, carry, c[i]);</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; }</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a>; i &lt; <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a> + 10; i++)</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; {</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keywordflow">if</span> (carry == 0)</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="comment">// printf(&quot;\t0 + %d + %d &quot;, b[i], carry);</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; c[i] = carry + c[i];</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="keywordflow">if</span> (c[i] &gt; 9)</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; {</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; carry = 1;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; c[i] -= 10;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; carry = 0;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="comment">// printf(&quot;= %d, %d\n&quot;, carry, c[i]);</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;}</div>
</div><!-- fragment -->
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<a id="ac260f58785fb20eb09bb35385a7d47f8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac260f58785fb20eb09bb35385a7d47f8">&#9670;&nbsp;</a></span>get_number()</h2>
<div class="memitem">
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<td class="memname">int get_number </td>
<td>(</td>
<td class="paramtype">FILE *&#160;</td>
<td class="paramname"><em>fp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>buffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t *&#160;</td>
<td class="paramname"><em>out_int</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</div><div class="memdoc">
<p>Function to read the number from a file and store it in array. <br />
index 0 of output buffer =&gt; units place <br />
index 1 of output buffer =&gt; tens place and so on i.e., index i =&gt; 10^i th place </p>
<div class="fragment"><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;{</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; <span class="keywordtype">long</span> l = fscanf(fp, <span class="stringliteral">&quot;%s\n&quot;</span>, buffer);</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; <span class="keywordflow">if</span> (!l)</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; perror(<span class="stringliteral">&quot;Error reading line.&quot;</span>);</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; }</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; <span class="comment">// printf(&quot;Number: %s\t length: %ld, %ld\n&quot;, buffer, strlen(buffer), l);</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; <span class="keywordtype">long</span> <a class="code" href="../../df/db3/struct_l.html">L</a> = strlen(buffer);</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="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="../../df/db3/struct_l.html">L</a>; i++)</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <span class="keywordflow">if</span> (buffer[i] &lt; 0x30 || buffer[i] &gt; 0x39)</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; perror(<span class="stringliteral">&quot;found inavlid character in the number!&quot;</span>);</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; }</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; out_int[<a class="code" href="../../df/db3/struct_l.html">L</a> - i - 1] = buffer[i] - 0x30;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;}</div>
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<a id="a840291bc02cba5474a4cb46a9b9566fe"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a840291bc02cba5474a4cb46a9b9566fe">&#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>
</tr>
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</div><div class="memdoc">
<p>Main function </p>
<div class="fragment"><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;{</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="comment">// const char N = 50, N2 = N+10; /* length of numbers */</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="keywordtype">char</span> txt_buffer[<a class="code" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a> + 5]; <span class="comment">/* temporary buffer */</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; uint8_t number[<a class="code" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a>]; <span class="comment">/* array to store digits of a large number */</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; uint8_t sum[<a class="code" href="../../db/d01/problem__13_2sol1_8c.html#acd864640121c7df2c19f61f7baa507e4">N2</a>]; <span class="comment">/* array to store the sum of the large numbers. For</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;<span class="comment"> safety, we make it twice the length of a number. */</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; memset(sum, 0, <span class="keyword">sizeof</span>(sum)); <span class="comment">/* initialize sum array with 0 */</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; FILE *fp = fopen(<span class="stringliteral">&quot;num.txt&quot;</span>, <span class="stringliteral">&quot;rt&quot;</span>); <span class="comment">/* open text file to read */</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keywordflow">if</span> (!fp)</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; perror(<span class="stringliteral">&quot;Unable to open file &#39;num.txt&#39;.&quot;</span>);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; }</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="keywordtype">int</span> count = 0;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#ac260f58785fb20eb09bb35385a7d47f8">get_number</a>(fp, txt_buffer, sum); <span class="comment">/* 0 + = first_number = first_number */</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordflow">do</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; {</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; count++;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="../../db/d01/problem__13_2sol1_8c.html#ac260f58785fb20eb09bb35385a7d47f8">get_number</a>(fp, txt_buffer, number) != 0)</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#ad51742ca5a5c99e860bdf30299163bf2">add_numbers</a>(number, sum, <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a>);</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; } <span class="keywordflow">while</span> (!feof(fp));</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; </div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; printf(<span class="stringliteral">&quot;\nSum : &quot;</span>);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#a248adc917818cc6666d8bc679a660319">print_number</a>(sum, <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#acd864640121c7df2c19f61f7baa507e4">N2</a>, -1);</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; </div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; printf(<span class="stringliteral">&quot;first 10 digits: \t&quot;</span>);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#a248adc917818cc6666d8bc679a660319">print_number</a>(sum, <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#acd864640121c7df2c19f61f7baa507e4">N2</a>, 10);</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; fclose(fp); <span class="comment">/* close file */</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a248adc917818cc6666d8bc679a660319">&#9670;&nbsp;</a></span>print_number()</h2>
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<td class="memname">int print_number </td>
<td>(</td>
<td class="paramtype">uint8_t *&#160;</td>
<td class="paramname"><em>number</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t&#160;</td>
<td class="paramname"><em>N</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int8_t&#160;</td>
<td class="paramname"><em>num_digits_to_print</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<p>Function to print a long number </p>
<div class="fragment"><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;{</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; uint8_t start_pos = <a class="code" href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a> - 1;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; uint8_t end_pos;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="comment">/* skip all initial zeros */</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keywordflow">while</span> (number[start_pos] == 0)</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; start_pos--;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="comment">/* if end_pos &lt; 0, print all digits */</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keywordflow">if</span> (num_digits_to_print &lt; 0)</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; end_pos = 0;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (num_digits_to_print &lt;= start_pos)</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; end_pos = start_pos - num_digits_to_print + 1;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; {</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; fprintf(stderr, <span class="stringliteral">&quot;invalid number of digits argumet!\n&quot;</span>);</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; }</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = start_pos; i &gt;= end_pos; i--)</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; putchar(number[i] + 0x30);</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; </div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; putchar(<span class="charliteral">&#39;\n&#39;</span>);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;}</div>
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<div class="ttc" id="astruct_l_html"><div class="ttname"><a href="../../df/db3/struct_l.html">L</a></div><div class="ttdef"><b>Definition:</b> list.h:8</div></div>
<div class="ttc" id="aproblem__13_2sol1_8c_html_acd864640121c7df2c19f61f7baa507e4"><div class="ttname"><a href="../../db/d01/problem__13_2sol1_8c.html#acd864640121c7df2c19f61f7baa507e4">N2</a></div><div class="ttdeci">#define N2</div><div class="ttdef"><b>Definition:</b> sol1.c:113</div></div>
<div class="ttc" id="aproblem__13_2sol1_8c_html_a0240ac851181b84ac374872dc5434ee4"><div class="ttname"><a href="../../db/d01/problem__13_2sol1_8c.html#a0240ac851181b84ac374872dc5434ee4">N</a></div><div class="ttdeci">#define N</div><div class="ttdef"><b>Definition:</b> sol1.c:111</div></div>
<div class="ttc" id="aproblem__13_2sol1_8c_html_ad51742ca5a5c99e860bdf30299163bf2"><div class="ttname"><a href="../../db/d01/problem__13_2sol1_8c.html#ad51742ca5a5c99e860bdf30299163bf2">add_numbers</a></div><div class="ttdeci">int add_numbers(uint8_t *a, uint8_t *b, uint8_t N)</div><div class="ttdef"><b>Definition:</b> sol1.c:44</div></div>
<div class="ttc" id="aproblem__13_2sol1_8c_html_a248adc917818cc6666d8bc679a660319"><div class="ttname"><a href="../../db/d01/problem__13_2sol1_8c.html#a248adc917818cc6666d8bc679a660319">print_number</a></div><div class="ttdeci">int print_number(uint8_t *number, uint8_t N, int8_t num_digits_to_print)</div><div class="ttdef"><b>Definition:</b> sol1.c:82</div></div>
<div class="ttc" id="aproblem__13_2sol1_8c_html_ac260f58785fb20eb09bb35385a7d47f8"><div class="ttname"><a href="../../db/d01/problem__13_2sol1_8c.html#ac260f58785fb20eb09bb35385a7d47f8">get_number</a></div><div class="ttdeci">int get_number(FILE *fp, char *buffer, uint8_t *out_int)</div><div class="ttdef"><b>Definition:</b> sol1.c:16</div></div>
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