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realstealthninja
2025-05-19 11:38:33 +00:00
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@@ -4,7 +4,7 @@
<head>
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<meta name="generator" content="Doxygen 1.12.0"/>
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<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>TheAlgorithms/C++: data_structures/sparse_table.cpp Source File</title>
<link rel="icon" href="../../favicon.svg" type="image/x-icon" />
@@ -60,7 +60,7 @@ window.MathJax = {
</table>
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<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "../../search/",'.html');
@@ -124,28 +124,30 @@ $(function(){initNavTree('d8/dab/sparse__table_8cpp_source.html','../../'); init
<div class="headertitle"><div class="title">sparse_table.cpp</div></div>
</div><!--header-->
<div class="contents">
<a href="../../d8/dab/sparse__table_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>
<a href="../../d8/dab/sparse__table_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>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &lt;array&gt;</span> </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include &lt;cassert&gt;</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include &lt;cstdint&gt;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include &lt;iostream&gt;</span> </div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../d5/d3c/namespacedata__structures.html">data_structures</a> {</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../d9/d55/namespacesparse__table.html">sparse_table</a> {</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d"> 48</a></span><span class="keyword">constexpr</span> uint32_t <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = 12345; </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="../../d8/dab/sparse__table_8cpp.html#af7db62f21983565c64d5d42d2a49888e"> 49</a></span><span class="keyword">constexpr</span> uint8_t <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#af7db62f21983565c64d5d42d2a49888e">M</a> = 14; </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="foldopen" id="foldopen00051" data-start="{" data-end="};">
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"><a class="line" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html"> 51</a></span><span class="keyword">struct </span><a class="code hl_struct" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html">Sparse_table</a> {</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"><a class="line" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#ad71ecd43d0af1127df5f4006258f9635"> 52</a></span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#ad71ecd43d0af1127df5f4006258f9635">n</a> = 0; </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"><a class="line" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#ab78620742305a35ff2f8d61179f47d3e"> 57</a></span> std::array&lt;int64_t, N&gt; <a class="code hl_variable" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#ab78620742305a35ff2f8d61179f47d3e">A</a> = {}; </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> std::array&lt;std::array&lt;int64_t, N&gt;, <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#af7db62f21983565c64d5d42d2a49888e">M</a>&gt;</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#ad36b9a20fed47b068e407008c04e9f81"> 59</a></span> <a class="code hl_variable" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#ad36b9a20fed47b068e407008c04e9f81">ST</a>{}; </div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"><a class="line" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#a6cf72f93b1551f0d943c585b4f173be3"> 60</a></span> std::array&lt;int64_t, N&gt; <a class="code hl_variable" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#a6cf72f93b1551f0d943c585b4f173be3">LOG</a> = {}; </div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordtype">void</span> buildST() {</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <a class="code hl_variable" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#a6cf72f93b1551f0d943c585b4f173be3">LOG</a>[0] = -1;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div>
@@ -156,6 +158,7 @@ $(function(){initNavTree('d8/dab/sparse__table_8cpp_source.html','../../'); init
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 1; <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(1 &lt;&lt; j) &lt;= <a class="code hl_variable" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#ad71ecd43d0af1127df5f4006258f9635">n</a>; ++j) {</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(i + (1 &lt;&lt; j)) &lt;= <a class="code hl_variable" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#ad71ecd43d0af1127df5f4006258f9635">n</a>; ++i) {</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> int64_t x = <a class="code hl_variable" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#ad36b9a20fed47b068e407008c04e9f81">ST</a>[j - 1][i]; </div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> int64_t y =</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <a class="code hl_variable" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#ad36b9a20fed47b068e407008c04e9f81">ST</a>[j - 1]</div>
@@ -166,7 +169,7 @@ $(function(){initNavTree('d8/dab/sparse__table_8cpp_source.html','../../'); init
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> }</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> }</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> }</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span></div>
<div class="foldopen" id="foldopen00110" data-start="{" data-end="}">
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"><a class="line" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#a0c8cbe7239232863f104793c08273039"> 110</a></span> int64_t <a class="code hl_function" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#a0c8cbe7239232863f104793c08273039">query</a>(int64_t l, int64_t r) {</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> int64_t g = <a class="code hl_variable" href="../../da/d37/structdata__structures_1_1sparse__table_1_1_sparse__table.html#a6cf72f93b1551f0d943c585b4f173be3">LOG</a>[r - l + 1]; </div>
@@ -181,7 +184,7 @@ $(function(){initNavTree('d8/dab/sparse__table_8cpp_source.html','../../'); init
</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span>} <span class="comment">// namespace sparse_table</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span>} <span class="comment">// namespace data_structures</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span></div>
<div class="foldopen" id="foldopen00129" data-start="{" data-end="}">
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"><a class="line" href="../../d8/dab/sparse__table_8cpp.html#aa8dca7b867074164d5f45b0f3851269d"> 129</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="../../d8/dab/sparse__table_8cpp.html#aa8dca7b867074164d5f45b0f3851269d">test</a>() {</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="comment">/* We take an array as an input on which we need to perform the ranged</span></div>
@@ -210,7 +213,7 @@ $(function(){initNavTree('d8/dab/sparse__table_8cpp_source.html','../../'); init
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Self-test implementations passed!&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span>}</div>
</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span></div>
<div class="foldopen" id="foldopen00162" data-start="{" data-end="}">
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"><a class="line" href="../../d8/dab/sparse__table_8cpp.html#a0ddf1224851353fc92bfbff6f499fa97"> 162</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../dd/d1e/generate__parentheses_8cpp.html#gae66f6b31b5ad750f1fe042a706a4e3d4">main</a>(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[]) {</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <a class="code hl_function" href="../../d8/dab/sparse__table_8cpp.html#aa8dca7b867074164d5f45b0f3851269d">test</a>(); <span class="comment">// run self-test implementations</span></div>
@@ -235,7 +238,7 @@ $(function(){initNavTree('d8/dab/sparse__table_8cpp_source.html','../../'); init
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
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