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<a href="#nested-classes">Classes</a> |
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<div class="headertitle"><div class="title">tower_of_hanoi.cpp File Reference</div></div>
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<p>Solve the <a href="https://en.wikipedia.org/wiki/Tower_of_Hanoi" target="_blank">Tower of Hanoi</a> problem.
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include <iostream></code><br />
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</div><div class="textblock"><div class="dynheader">
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Include dependency graph for tower_of_hanoi.cpp:</div>
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<div class="dyncontent">
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<div class="center"><iframe scrolling="no" frameborder="0" src="../../d9/ddb/tower__of__hanoi_8cpp__incl.svg" width="186" height="110"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe>
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</div><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="nested-classes" name="nested-classes"></a>
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Classes</h2></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d2/d2c/structtower.html">tower</a></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:a746d9a3984bba88fd6dd91978f6931ed"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d3c/tower__of__hanoi_8cpp.html#a746d9a3984bba88fd6dd91978f6931ed">show</a> (const struct <a class="el" href="../../d2/d2c/structtower.html">tower</a> *const F, const struct <a class="el" href="../../d2/d2c/structtower.html">tower</a> *const T, const struct <a class="el" href="../../d2/d2c/structtower.html">tower</a> *const U)</td></tr>
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<tr class="separator:a746d9a3984bba88fd6dd91978f6931ed"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af4cfc41e546f1f8d25f01e0804e8b61d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d3c/tower__of__hanoi_8cpp.html#af4cfc41e546f1f8d25f01e0804e8b61d">mov</a> (<a class="el" href="../../d2/d2c/structtower.html">tower</a> *From, <a class="el" href="../../d2/d2c/structtower.html">tower</a> *To)</td></tr>
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<tr class="separator:af4cfc41e546f1f8d25f01e0804e8b61d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab037f72a5eac476535a6cfbbcb965417"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d3c/tower__of__hanoi_8cpp.html#ab037f72a5eac476535a6cfbbcb965417">TH</a> (int n, <a class="el" href="../../d2/d2c/structtower.html">tower</a> *From, <a class="el" href="../../d2/d2c/structtower.html">tower</a> *Using, <a class="el" href="../../d2/d2c/structtower.html">tower</a> *To)</td></tr>
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<tr class="separator:ab037f72a5eac476535a6cfbbcb965417"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d3c/tower__of__hanoi_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a> ()</td></tr>
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<tr class="separator:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Solve the <a href="https://en.wikipedia.org/wiki/Tower_of_Hanoi" target="_blank">Tower of Hanoi</a> problem. </p>
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</div><h2 class="groupheader">Function Documentation</h2>
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<a id="ae66f6b31b5ad750f1fe042a706a4e3d4" name="ae66f6b31b5ad750f1fe042a706a4e3d4"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ae66f6b31b5ad750f1fe042a706a4e3d4">◆ </a></span>main()</h2>
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<div class="memitem">
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<td class="memname">int main </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>Main function </p>
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<div class="fragment"><div class="line"><span class="lineno"> 65</span> {</div>
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<div class="line"><span class="lineno"> 66</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d2/d2c/structtower.html">tower</a> F, U, T;</div>
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<div class="line"><span class="lineno"> 67</span> </div>
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<div class="line"><span class="lineno"> 68</span> F.<a class="code hl_variable" href="../../d2/d2c/structtower.html#acb535964abd34c47678a4ade0628223d">top</a> = 0;</div>
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<div class="line"><span class="lineno"> 69</span> U.top = 0;</div>
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<div class="line"><span class="lineno"> 70</span> T.top = 0;</div>
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<div class="line"><span class="lineno"> 71</span> </div>
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<div class="line"><span class="lineno"> 72</span> <span class="keywordtype">int</span> no;</div>
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<div class="line"><span class="lineno"> 73</span> </div>
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<div class="line"><span class="lineno"> 74</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"\nEnter number of discs : "</span>;</div>
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<div class="line"><span class="lineno"> 75</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> no;</div>
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<div class="line"><span class="lineno"> 76</span> </div>
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<div class="line"><span class="lineno"> 77</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = no; i > 0; i--) {</div>
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<div class="line"><span class="lineno"> 78</span> F.values[F.top++] = i;</div>
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<div class="line"><span class="lineno"> 79</span> }</div>
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<div class="line"><span class="lineno"> 80</span> </div>
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<div class="line"><span class="lineno"> 81</span> show(&F, &T, &U);</div>
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<div class="line"><span class="lineno"> 82</span> <a class="code hl_function" href="../../db/d3c/tower__of__hanoi_8cpp.html#ab037f72a5eac476535a6cfbbcb965417">TH</a>(no, &F, &U, &T);</div>
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<div class="line"><span class="lineno"> 83</span> </div>
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<div class="line"><span class="lineno"> 84</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><span class="lineno"> 85</span>}</div>
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<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>
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<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>
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<div class="ttc" id="astructtower_html"><div class="ttname"><a href="../../d2/d2c/structtower.html">tower</a></div><div class="ttdef"><b>Definition:</b> tower_of_hanoi.cpp:11</div></div>
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<div class="ttc" id="astructtower_html_acb535964abd34c47678a4ade0628223d"><div class="ttname"><a href="../../d2/d2c/structtower.html#acb535964abd34c47678a4ade0628223d">tower::top</a></div><div class="ttdeci">int top</div><div class="ttdoc">top tower ID</div><div class="ttdef"><b>Definition:</b> tower_of_hanoi.cpp:15</div></div>
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<div class="ttc" id="atower__of__hanoi_8cpp_html_ab037f72a5eac476535a6cfbbcb965417"><div class="ttname"><a href="../../db/d3c/tower__of__hanoi_8cpp.html#ab037f72a5eac476535a6cfbbcb965417">TH</a></div><div class="ttdeci">void TH(int n, tower *From, tower *Using, tower *To)</div><div class="ttdef"><b>Definition:</b> tower_of_hanoi.cpp:52</div></div>
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</div><!-- fragment --><div class="dynheader">
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Here is the call graph for this function:</div>
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<div class="dyncontent">
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<div class="center"><iframe scrolling="no" frameborder="0" src="../../db/d3c/tower__of__hanoi_8cpp_ae66f6b31b5ad750f1fe042a706a4e3d4_cgraph.svg" width="244" height="60"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe>
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</div>
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</div>
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</div>
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</div>
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<a id="af4cfc41e546f1f8d25f01e0804e8b61d" name="af4cfc41e546f1f8d25f01e0804e8b61d"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#af4cfc41e546f1f8d25f01e0804e8b61d">◆ </a></span>mov()</h2>
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<td class="memname">void mov </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="../../d2/d2c/structtower.html">tower</a> * </td>
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<td class="paramname"><em>From</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="../../d2/d2c/structtower.html">tower</a> * </td>
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<td class="paramname"><em>To</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<p>Move one disc from one tower to another </p><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in,out]</td><td class="paramname">From</td><td>tower to move disk <em>from</em> </td></tr>
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<tr><td class="paramdir">[in,out]</td><td class="paramname">To</td><td>tower to move disk <em>to</em> </td></tr>
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</table>
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</dd>
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</dl>
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<div class="fragment"><div class="line"><span class="lineno"> 39</span> {</div>
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<div class="line"><span class="lineno"> 40</span> --From-><a class="code hl_variable" href="../../d2/d2c/structtower.html#acb535964abd34c47678a4ade0628223d">top</a>;</div>
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<div class="line"><span class="lineno"> 41</span> To-><a class="code hl_variable" href="../../d2/d2c/structtower.html#a3ebb75c13c57d51a8a1ba1ea54a515e9">values</a>[To-><a class="code hl_variable" href="../../d2/d2c/structtower.html#acb535964abd34c47678a4ade0628223d">top</a>] = From-><a class="code hl_variable" href="../../d2/d2c/structtower.html#a3ebb75c13c57d51a8a1ba1ea54a515e9">values</a>[From-><a class="code hl_variable" href="../../d2/d2c/structtower.html#acb535964abd34c47678a4ade0628223d">top</a>];</div>
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<div class="line"><span class="lineno"> 42</span> ++To-><a class="code hl_variable" href="../../d2/d2c/structtower.html#acb535964abd34c47678a4ade0628223d">top</a>;</div>
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<div class="line"><span class="lineno"> 43</span>}</div>
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<div class="ttc" id="astructtower_html_a3ebb75c13c57d51a8a1ba1ea54a515e9"><div class="ttname"><a href="../../d2/d2c/structtower.html#a3ebb75c13c57d51a8a1ba1ea54a515e9">tower::values</a></div><div class="ttdeci">int values[10]</div><div class="ttdoc">Values in the tower.</div><div class="ttdef"><b>Definition:</b> tower_of_hanoi.cpp:13</div></div>
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</div><!-- fragment -->
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</div>
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</div>
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<a id="a746d9a3984bba88fd6dd91978f6931ed" name="a746d9a3984bba88fd6dd91978f6931ed"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a746d9a3984bba88fd6dd91978f6931ed">◆ </a></span>show()</h2>
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<td class="memname">void show </td>
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<td>(</td>
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<td class="paramtype">const struct <a class="el" href="../../d2/d2c/structtower.html">tower</a> *const </td>
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<td class="paramname"><em>F</em>, </td>
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<td class="paramtype">const struct <a class="el" href="../../d2/d2c/structtower.html">tower</a> *const </td>
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<td class="paramname"><em>T</em>, </td>
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<td></td>
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<td class="paramtype">const struct <a class="el" href="../../d2/d2c/structtower.html">tower</a> *const </td>
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<td class="paramname"><em>U</em> </td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Display the towers </p>
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<div class="fragment"><div class="line"><span class="lineno"> 20</span> {</div>
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<div class="line"><span class="lineno"> 21</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"\n\n\tF : "</span>;</div>
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<div class="line"><span class="lineno"> 22</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < F-><a class="code hl_variable" href="../../d2/d2c/structtower.html#acb535964abd34c47678a4ade0628223d">top</a>; i++) {</div>
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<div class="line"><span class="lineno"> 23</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << F-><a class="code hl_variable" href="../../d2/d2c/structtower.html#a3ebb75c13c57d51a8a1ba1ea54a515e9">values</a>[i] << <span class="stringliteral">"\t"</span>;</div>
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<div class="line"><span class="lineno"> 24</span> }</div>
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<div class="line"><span class="lineno"> 25</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"\n\tU : "</span>;</div>
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<div class="line"><span class="lineno"> 26</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < U-><a class="code hl_variable" href="../../d2/d2c/structtower.html#acb535964abd34c47678a4ade0628223d">top</a>; i++) {</div>
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<div class="line"><span class="lineno"> 27</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << U-><a class="code hl_variable" href="../../d2/d2c/structtower.html#a3ebb75c13c57d51a8a1ba1ea54a515e9">values</a>[i] << <span class="stringliteral">"\t"</span>;</div>
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<div class="line"><span class="lineno"> 28</span> }</div>
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<div class="line"><span class="lineno"> 29</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"\n\tT : "</span>;</div>
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<div class="line"><span class="lineno"> 30</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < T-><a class="code hl_variable" href="../../d2/d2c/structtower.html#acb535964abd34c47678a4ade0628223d">top</a>; i++) {</div>
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<div class="line"><span class="lineno"> 31</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << T-><a class="code hl_variable" href="../../d2/d2c/structtower.html#a3ebb75c13c57d51a8a1ba1ea54a515e9">values</a>[i] << <span class="stringliteral">"\t"</span>;</div>
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<div class="line"><span class="lineno"> 32</span> }</div>
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<div class="line"><span class="lineno"> 33</span>}</div>
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</div><!-- fragment -->
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</div>
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</div>
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<a id="ab037f72a5eac476535a6cfbbcb965417" name="ab037f72a5eac476535a6cfbbcb965417"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ab037f72a5eac476535a6cfbbcb965417">◆ </a></span>TH()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void TH </td>
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<td>(</td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>n</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="../../d2/d2c/structtower.html">tower</a> * </td>
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<td class="paramname"><em>From</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="../../d2/d2c/structtower.html">tower</a> * </td>
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<td class="paramname"><em>Using</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="../../d2/d2c/structtower.html">tower</a> * </td>
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<td class="paramname"><em>To</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Recursive algorithm to solve the puzzle </p><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">n</td><td>starting number of disks </td></tr>
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<tr><td class="paramdir">[in,out]</td><td class="paramname">From</td><td>tower to move disks from </td></tr>
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<tr><td class="paramdir">[in,out]</td><td class="paramname">Using</td><td>temporary tower for the puzzle </td></tr>
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<tr><td class="paramdir">[in,out]</td><td class="paramname">To</td><td>tower to move disk to </td></tr>
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</table>
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</dd>
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</dl>
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<div class="fragment"><div class="line"><span class="lineno"> 52</span> {</div>
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<div class="line"><span class="lineno"> 53</span> <span class="keywordflow">if</span> (n == 1) {</div>
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<div class="line"><span class="lineno"> 54</span> <a class="code hl_function" href="../../db/d3c/tower__of__hanoi_8cpp.html#af4cfc41e546f1f8d25f01e0804e8b61d">mov</a>(From, To);</div>
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<div class="line"><span class="lineno"> 55</span> show(From, To, Using);</div>
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<div class="line"><span class="lineno"> 56</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><span class="lineno"> 57</span> <a class="code hl_function" href="../../db/d3c/tower__of__hanoi_8cpp.html#ab037f72a5eac476535a6cfbbcb965417">TH</a>(n - 1, From, To, Using);</div>
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<div class="line"><span class="lineno"> 58</span> <a class="code hl_function" href="../../db/d3c/tower__of__hanoi_8cpp.html#af4cfc41e546f1f8d25f01e0804e8b61d">mov</a>(From, To);</div>
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<div class="line"><span class="lineno"> 59</span> show(From, To, Using);</div>
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<div class="line"><span class="lineno"> 60</span> <a class="code hl_function" href="../../db/d3c/tower__of__hanoi_8cpp.html#ab037f72a5eac476535a6cfbbcb965417">TH</a>(n - 1, Using, From, To);</div>
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<div class="line"><span class="lineno"> 61</span> }</div>
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<div class="line"><span class="lineno"> 62</span>}</div>
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<div class="ttc" id="atower__of__hanoi_8cpp_html_af4cfc41e546f1f8d25f01e0804e8b61d"><div class="ttname"><a href="../../db/d3c/tower__of__hanoi_8cpp.html#af4cfc41e546f1f8d25f01e0804e8b61d">mov</a></div><div class="ttdeci">void mov(tower *From, tower *To)</div><div class="ttdef"><b>Definition:</b> tower_of_hanoi.cpp:39</div></div>
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