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<p>Implementation to [From the right, set the Kth bit in the binary representation of N] (<a href="https://practice.geeksforgeeks.org/problems/set-kth-bit3724/1/">https://practice.geeksforgeeks.org/problems/set-kth-bit3724/1/</a>) in an integer.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;cassert&gt;</code><br />
<code>#include &lt;cstdint&gt;</code><br />
<code>#include &lt;iostream&gt;</code><br />
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Include dependency graph for set_kth_bit.cpp:</div>
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<p><a href="../../d5/db5/set__kth__bit_8cpp_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 id="header-namespaces" class="groupheader"><a id="namespaces" name="namespaces"></a>
Namespaces</h2></td></tr>
<tr class="memitem:bit_5Fmanipulation" id="r_bit_5Fmanipulation"><td class="memItemLeft" align="right" valign="top">namespace &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d81/namespacebit__manipulation.html">bit_manipulation</a></td></tr>
<tr class="memdesc:d7/d81/namespacebit__manipulation"><td class="mdescLeft">&#160;</td><td class="mdescRight">for assert <br /></td></tr>
<tr class="memitem:setKthBit" id="r_setKthBit"><td class="memItemLeft" align="right" valign="top">namespace &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/d88/namespaceset_kth_bit.html">setKthBit</a></td></tr>
<tr class="memdesc:d8/d88/namespaceset_kth_bit"><td class="mdescLeft">&#160;</td><td class="mdescRight">Functions for the [From the right, set the Kth bit in the binary representation of N] (<a href="https://practice.geeksforgeeks.org/problems/set-kth-bit3724/1/">https://practice.geeksforgeeks.org/problems/set-kth-bit3724/1/</a>) implementation. <br /></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ad4d0ffd9331242c42a28834ee19f5fd9" id="r_ad4d0ffd9331242c42a28834ee19f5fd9"><td class="memItemLeft" align="right" valign="top">std::uint64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ad4d0ffd9331242c42a28834ee19f5fd9">bit_manipulation::set_kth_bit::setKthBit</a> (std ::int64_t N, std ::int64_t k)</td></tr>
<tr class="memdesc:ad4d0ffd9331242c42a28834ee19f5fd9"><td class="mdescLeft">&#160;</td><td class="mdescRight">The main function implements set kth bit. <br /></td></tr>
<tr class="memitem:aa8dca7b867074164d5f45b0f3851269d" id="r_aa8dca7b867074164d5f45b0f3851269d"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#aa8dca7b867074164d5f45b0f3851269d">test</a> ()</td></tr>
<tr class="memdesc:aa8dca7b867074164d5f45b0f3851269d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Self-test implementations. <br /></td></tr>
<tr class="memitem:ae66f6b31b5ad750f1fe042a706a4e3d4" id="r_ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a> ()</td></tr>
<tr class="memdesc:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Main function. <br /></td></tr>
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<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Implementation to [From the right, set the Kth bit in the binary representation of N] (<a href="https://practice.geeksforgeeks.org/problems/set-kth-bit3724/1/">https://practice.geeksforgeeks.org/problems/set-kth-bit3724/1/</a>) in an integer. </p>
<p>Given a number N and a value K. From the right, set the Kth bit in the binary representation of N. The position of Least Significant Bit(or last bit) is 0, the second last bit is 1 and so on. in it.</p>
<p>A binary number consists of two digits. They are 0 &amp; 1. Digit 1 is known as set bit in computer terms. Worst Case Time Complexity: O(1) Space complexity: O(1)</p>
<dl class="section author"><dt>Author</dt><dd><a href="https://github.com/aman2000raj" target="_blank">Aman Raj</a> </dd></dl>
<p class="definition">Definition in file <a class="el" href="../../d5/db5/set__kth__bit_8cpp_source.html">set_kth_bit.cpp</a>.</p>
</div><a name="doc-func-members" id="doc-func-members"></a><h2 id="header-doc-func-members" class="groupheader">Function Documentation</h2>
<a id="ae66f6b31b5ad750f1fe042a706a4e3d4" name="ae66f6b31b5ad750f1fe042a706a4e3d4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae66f6b31b5ad750f1fe042a706a4e3d4">&#9670;&#160;</a></span>main()</h2>
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<td class="memname">int main </td>
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<p>Main function. </p>
<dl class="section return"><dt>Returns</dt><dd>0 on exit </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../d5/db5/set__kth__bit_8cpp_source.html#l00077">77</a> of file <a class="el" href="../../d5/db5/set__kth__bit_8cpp_source.html">set_kth_bit.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 77</span> {</div>
<div class="line"><span class="lineno"> 78</span> <a class="code hl_function" href="#aa8dca7b867074164d5f45b0f3851269d">test</a>(); <span class="comment">// run self-test implementations</span></div>
<div class="line"><span class="lineno"> 79</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 80</span>}</div>
<div class="ttc" id="aset__kth__bit_8cpp_html_aa8dca7b867074164d5f45b0f3851269d"><div class="ttname"><a href="#aa8dca7b867074164d5f45b0f3851269d">test</a></div><div class="ttdeci">static void test()</div><div class="ttdoc">Self-test implementations.</div><div class="ttdef"><b>Definition</b> <a href="../../d5/db5/set__kth__bit_8cpp_source.html#l00061">set_kth_bit.cpp:61</a></div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ad4d0ffd9331242c42a28834ee19f5fd9">&#9670;&#160;</a></span>setKthBit()</h2>
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<td class="memname">std::uint64_t bit_manipulation::set_kth_bit::setKthBit </td>
<td>(</td>
<td class="paramtype">std ::int64_t</td> <td class="paramname"><span class="paramname"><em>N</em></span>, </td>
</tr>
<tr>
<td class="paramkey"></td>
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<td class="paramtype">std ::int64_t</td> <td class="paramname"><span class="paramname"><em>k</em></span>&#160;)</td>
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<p>The main function implements set kth bit. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">N</td><td>is the number whose kth bit will be set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>returns an integer after setting the K'th bit in N </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../d5/db5/set__kth__bit_8cpp_source.html#l00043">43</a> of file <a class="el" href="../../d5/db5/set__kth__bit_8cpp_source.html">set_kth_bit.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 44</span> { <span class="comment">// int64_t is preferred over int so</span></div>
<div class="line"><span class="lineno"> 45</span> <span class="comment">// that no Overflow can be there.</span></div>
<div class="line"><span class="lineno"> 46</span> </div>
<div class="line"><span class="lineno"> 47</span> <span class="keywordtype">int</span> pos =</div>
<div class="line"><span class="lineno"> 48</span> 1 &lt;&lt; k; <span class="comment">// &quot;pos&quot; variable is used to store 1 at kth postion and</span></div>
<div class="line"><span class="lineno"> 49</span> <span class="comment">// rest bits are 0. in binary representation of number &#39;n&#39;</span></div>
<div class="line"><span class="lineno"> 50</span> </div>
<div class="line"><span class="lineno"> 51</span> <span class="keywordflow">return</span> N | pos; <span class="comment">// by taking or with the pos and the N we set the bit of N</span></div>
<div class="line"><span class="lineno"> 52</span> <span class="comment">// at kth position.</span></div>
<div class="line"><span class="lineno"> 53</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#aa8dca7b867074164d5f45b0f3851269d">&#9670;&#160;</a></span>test()</h2>
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<td class="memname">void test </td>
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<td class="paramname"><span class="paramname"><em></em></span></td><td>)</td>
<td></td>
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<p>Self-test implementations. </p>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../d5/db5/set__kth__bit_8cpp_source.html#l00061">61</a> of file <a class="el" href="../../d5/db5/set__kth__bit_8cpp_source.html">set_kth_bit.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 61</span> {</div>
<div class="line"><span class="lineno"> 62</span> <span class="comment">// n = 10,2 return 14</span></div>
<div class="line"><span class="lineno"> 63</span> assert(<a class="code hl_function" href="#ad4d0ffd9331242c42a28834ee19f5fd9">bit_manipulation::set_kth_bit::setKthBit</a>(10, 2) == 14);</div>
<div class="line"><span class="lineno"> 64</span> <span class="comment">// n = 25,1 return 27</span></div>
<div class="line"><span class="lineno"> 65</span> assert(<a class="code hl_function" href="#ad4d0ffd9331242c42a28834ee19f5fd9">bit_manipulation::set_kth_bit::setKthBit</a>(25, 1) == 27);</div>
<div class="line"><span class="lineno"> 66</span> <span class="comment">// n = 400001,5 return 400033</span></div>
<div class="line"><span class="lineno"> 67</span> assert(<a class="code hl_function" href="#ad4d0ffd9331242c42a28834ee19f5fd9">bit_manipulation::set_kth_bit::setKthBit</a>(400001, 5) == 400033);</div>
<div class="line"><span class="lineno"> 68</span> <span class="comment">// n = 123 return 123</span></div>
<div class="line"><span class="lineno"> 69</span> assert(<a class="code hl_function" href="#ad4d0ffd9331242c42a28834ee19f5fd9">bit_manipulation::set_kth_bit::setKthBit</a>(123, 3) == 123);</div>
<div class="line"><span class="lineno"> 70</span> </div>
<div class="line"><span class="lineno"> 71</span> std::cout &lt;&lt; <span class="stringliteral">&quot;All test cases successfully passed!&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 72</span>}</div>
<div class="ttc" id="aset__kth__bit_8cpp_html_ad4d0ffd9331242c42a28834ee19f5fd9"><div class="ttname"><a href="#ad4d0ffd9331242c42a28834ee19f5fd9">bit_manipulation::set_kth_bit::setKthBit</a></div><div class="ttdeci">std::uint64_t setKthBit(std ::int64_t N, std ::int64_t k)</div><div class="ttdoc">The main function implements set kth bit.</div><div class="ttdef"><b>Definition</b> <a href="../../d5/db5/set__kth__bit_8cpp_source.html#l00043">set_kth_bit.cpp:43</a></div></div>
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