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<div class="headertitle"><div class="title">brute_force_string_searching.cpp</div></div>
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<div class="contents">
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<a href="../../d3/d7d/brute__force__string__searching_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include <iostream></span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#ifdef _MSC_VER</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include <string></span> <span class="comment">// use this for MS Visual C++</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include <cstring></span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="foldopen" id="foldopen00013" data-start="{" data-end="}">
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"><a class="line" href="../../d9/d03/namespacestring__search.html"> 13</a></span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../d9/d03/namespacestring__search.html">string_search</a> {</div>
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<div class="foldopen" id="foldopen00021" data-start="{" data-end="}">
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"><a class="line" href="../../d9/d03/namespacestring__search.html#aeb2cd81064717aedd62bfb096b1a73d8"> 21</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../d9/d03/namespacestring__search.html#aeb2cd81064717aedd62bfb096b1a73d8">brute_force</a>(<span class="keyword">const</span> std::string &text, <span class="keyword">const</span> std::string &pattern) {</div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordtype">size_t</span> pat_l = pattern.length();</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> <span class="keywordtype">size_t</span> txt_l = text.length();</div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keywordtype">int</span> index = -1;</div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keywordflow">if</span> (pat_l <= txt_l) {</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < txt_l - pat_l + 1; i++) {</div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> std::string s = text.substr(i, pat_l);</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keywordflow">if</span> (s == pattern) {</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> index = i;</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> }</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> }</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> }</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keywordflow">return</span> index;</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span>}</div>
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</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span>} <span class="comment">// namespace string_search</span></div>
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</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="keyword">using </span><a class="code hl_function" href="../../d9/d03/namespacestring__search.html#aeb2cd81064717aedd62bfb096b1a73d8">string_search::brute_force</a>;</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span></div>
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<div class="foldopen" id="foldopen00041" data-start="{" data-end="};">
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"><a class="line" href="../../d3/d7d/brute__force__string__searching_8cpp.html#ae2abaa9caa13fff35e45edca00bee123"> 41</a></span><span class="keyword">const</span> std::vector<std::vector<std::string>> <a class="code hl_variable" href="../../d3/d7d/brute__force__string__searching_8cpp.html#ae2abaa9caa13fff35e45edca00bee123">test_set</a> = {</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="comment">// {text, pattern, expected output}</span></div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> {<span class="stringliteral">"a"</span>, <span class="stringliteral">"aa"</span>, <span class="stringliteral">"-1"</span>}, {<span class="stringliteral">"a"</span>, <span class="stringliteral">"a"</span>, <span class="stringliteral">"0"</span>}, {<span class="stringliteral">"ba"</span>, <span class="stringliteral">"b"</span>, <span class="stringliteral">"0"</span>},</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> {<span class="stringliteral">"bba"</span>, <span class="stringliteral">"bb"</span>, <span class="stringliteral">"0"</span>}, {<span class="stringliteral">"bbca"</span>, <span class="stringliteral">"c"</span>, <span class="stringliteral">"2"</span>}, {<span class="stringliteral">"ab"</span>, <span class="stringliteral">"b"</span>, <span class="stringliteral">"1"</span>}};</div>
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</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span></div>
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<div class="foldopen" id="foldopen00047" data-start="{" data-end="}">
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"><a class="line" href="../../d3/d7d/brute__force__string__searching_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4"> 47</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../d3/d7d/brute__force__string__searching_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> &i : <a class="code hl_variable" href="../../d3/d7d/brute__force__string__searching_8cpp.html#ae2abaa9caa13fff35e45edca00bee123">test_set</a>) {</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordtype">int</span> output = <a class="code hl_function" href="../../d3/d7d/brute__force__string__searching_8cpp.html#aeb2cd81064717aedd62bfb096b1a73d8">brute_force</a>(i[0], i[1]);</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">if</span> (std::to_string(output) == i[2]) {</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> std::cout << <span class="stringliteral">"success\n"</span>;</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> std::cout << <span class="stringliteral">"failure\n"</span>;</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> }</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> }</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span>}</div>
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</div>
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<div class="ttc" id="abrute__force__string__searching_8cpp_html_ae2abaa9caa13fff35e45edca00bee123"><div class="ttname"><a href="../../d3/d7d/brute__force__string__searching_8cpp.html#ae2abaa9caa13fff35e45edca00bee123">test_set</a></div><div class="ttdeci">const std::vector< std::vector< std::string > > test_set</div><div class="ttdef"><b>Definition</b> <a href="#l00041">brute_force_string_searching.cpp:41</a></div></div>
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<div class="ttc" id="abrute__force__string__searching_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="../../d3/d7d/brute__force__string__searching_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdef"><b>Definition</b> <a href="#l00047">brute_force_string_searching.cpp:47</a></div></div>
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<div class="ttc" id="abrute__force__string__searching_8cpp_html_aeb2cd81064717aedd62bfb096b1a73d8"><div class="ttname"><a href="../../d3/d7d/brute__force__string__searching_8cpp.html#aeb2cd81064717aedd62bfb096b1a73d8">brute_force</a></div><div class="ttdeci">int brute_force(const std::string &text, const std::string &pattern)</div><div class="ttdef"><b>Definition</b> <a href="#l00021">brute_force_string_searching.cpp:21</a></div></div>
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<div class="ttc" id="anamespacestring__search_html"><div class="ttname"><a href="../../d9/d03/namespacestring__search.html">string_search</a></div><div class="ttdoc">String search algorithms.</div><div class="ttdef"><b>Definition</b> <a href="#l00013">brute_force_string_searching.cpp:13</a></div></div>
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<div class="ttc" id="anamespacestring__search_html_aeb2cd81064717aedd62bfb096b1a73d8"><div class="ttname"><a href="../../d9/d03/namespacestring__search.html#aeb2cd81064717aedd62bfb096b1a73d8">string_search::brute_force</a></div><div class="ttdeci">int brute_force(const std::string &text, const std::string &pattern)</div><div class="ttdef"><b>Definition</b> <a href="#l00021">brute_force_string_searching.cpp:21</a></div></div>
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