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@@ -2,8 +2,8 @@
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<div id="projectbrief">Set of algorithms implemented in C++.</div>
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<div class="header">
<div class="summary">
<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">binary_search.cpp File Reference</div> </div>
<div class="headertitle"><div class="title">binary_search.cpp File Reference</div></div>
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<div class="contents">
<p><a href="https://en.wikipedia.org/wiki/Binary_search_algorithm">Binary search algorithm</a>
<p><a href="https://en.wikipedia.org/wiki/Binary_search_algorithm" target="_blank">Binary search algorithm</a>
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;iostream&gt;</code><br />
</div><div class="textblock"><div class="dynheader">
@@ -107,7 +106,7 @@ Include dependency graph for binary_search.cpp:</div>
</div>
</div>
</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a78df202b718cfe3c2c9216979b08298d"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../df/dd5/binary__search_8cpp.html#a78df202b718cfe3c2c9216979b08298d">binary_search</a> (int a[], int r, int key)</td></tr>
<tr class="separator:a78df202b718cfe3c2c9216979b08298d"><td class="memSeparator" colspan="2">&#160;</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://en.wikipedia.org/wiki/Binary_search_algorithm">Binary search algorithm</a> </p>
<div class="textblock"><p ><a href="https://en.wikipedia.org/wiki/Binary_search_algorithm" target="_blank">Binary search algorithm</a> </p>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="a78df202b718cfe3c2c9216979b08298d"></a>
<a id="a78df202b718cfe3c2c9216979b08298d" name="a78df202b718cfe3c2c9216979b08298d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a78df202b718cfe3c2c9216979b08298d">&#9670;&nbsp;</a></span>binary_search()</h2>
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</tr>
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</div><div class="memdoc">
<p>binary_search function </p><dl class="params"><dt>Parameters</dt><dd>
<p >binary_search function </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>array to sort </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">r</td><td>right hand limit = \(n-1\) </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>index if T is found </dd>
<dd>
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<div class="fragment"><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; {</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160; <span class="keywordtype">int</span> l = 0;</div>
<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="keywordflow">while</span> (l &lt;= r) {</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; <span class="keywordtype">int</span> m = l + (r - l) / 2;</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160; <span class="keywordflow">if</span> (key == a[m])</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160; <span class="keywordflow">return</span> m;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (key &lt; a[m])</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; r = m - 1;</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; l = m + 1;</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; }</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;}</div>
<div class="fragment"><div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> {</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> <span class="keywordtype">int</span> l = 0;</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> <span class="keywordflow">while</span> (l &lt;= r) {</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <span class="keywordtype">int</span> m = l + (r - l) / 2;</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> <span class="keywordflow">if</span> (key == a[m])</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> r = m - 1;</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> l = m + 1;</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> }</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keywordflow">return</span> -1;</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span>}</div>
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<a id="abf9e6b7e6f15df4b525a2e7705ba3089"></a>
<a id="abf9e6b7e6f15df4b525a2e7705ba3089" name="abf9e6b7e6f15df4b525a2e7705ba3089"></a>
<h2 class="memtitle"><span class="permalink"><a href="#abf9e6b7e6f15df4b525a2e7705ba3089">&#9670;&nbsp;</a></span>main()</h2>
<div class="memitem">
@@ -201,33 +200,33 @@ Functions</h2></td></tr>
</tr>
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</div><div class="memdoc">
<p>main function </p>
<div class="fragment"><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; <span class="keywordtype">int</span> n, key;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Enter size of array: &quot;</span>;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; n;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Enter array elements: &quot;</span>;</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="keywordtype">int</span>* a = <span class="keyword">new</span> <span class="keywordtype">int</span>[n];</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="comment">// this loop use for store value in Array</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; a[i];</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Enter search key: &quot;</span>;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; key;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; </div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="comment">// this is use for find value in given array</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keywordtype">int</span> res = <a class="code" href="../../df/dd5/binary__search_8cpp.html#a78df202b718cfe3c2c9216979b08298d">binary_search</a>(a, n - 1, key);</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keywordflow">if</span> (res != -1)</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; key &lt;&lt; <span class="stringliteral">&quot; found at index &quot;</span> &lt;&lt; res &lt;&lt; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keywordflow">else</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; key &lt;&lt; <span class="stringliteral">&quot; not found&quot;</span> &lt;&lt; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keyword">delete</span>[] a;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;}</div>
<p >main function </p>
<div class="fragment"><div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> {</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="keywordtype">int</span> n, key;</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Enter size of array: &quot;</span>;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; n;</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Enter array elements: &quot;</span>;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordtype">int</span>* a = <span class="keyword">new</span> <span class="keywordtype">int</span>[n];</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// this loop use for store value in Array</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; a[i];</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> }</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Enter search key: &quot;</span>;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; key;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="comment">// this is use for find value in given array</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordtype">int</span> res = <a class="code hl_function" href="../../df/dd5/binary__search_8cpp.html#a78df202b718cfe3c2c9216979b08298d">binary_search</a>(a, n - 1, key);</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordflow">if</span> (res != -1)</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; key &lt;&lt; <span class="stringliteral">&quot; found at index &quot;</span> &lt;&lt; res &lt;&lt; <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">delete</span>[] a;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span>}</div>
<div class="ttc" id="abasic_istream_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a></div></div>
<div class="ttc" id="abasic_ostream_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a></div></div>
<div class="ttc" id="abinary__search_8cpp_html_a78df202b718cfe3c2c9216979b08298d"><div class="ttname"><a href="../../df/dd5/binary__search_8cpp.html#a78df202b718cfe3c2c9216979b08298d">binary_search</a></div><div class="ttdeci">int binary_search(int a[], int r, int key)</div><div class="ttdef"><b>Definition:</b> binary_search.cpp:15</div></div>
@@ -247,7 +246,7 @@ Here is the call graph for this function:</div>
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