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<li class="navelem"><a class="el" href="dir_17297ffb27ce571941f5fb5008f01a1f.html">dl</a></li><li class="navelem"><a class="el" href="dir_78beb56c8eba7ccc6c64d7863d88a69e.html">base</a></li> </ul>
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<div class="header">
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<div class="headertitle"><div class="title">dl_discrete_range.h</div></div>
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<div class="contents">
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<a href="dl__discrete__range_8h.html">浏览该文件的文档.</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="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#pragma once</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include <optional></span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacedl.html">dl</a></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span>{</div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keyword">template</span><<span class="keyword">typename</span> T></div>
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<div class="foldopen" id="foldopen00020" data-start="{" data-end="};">
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"><a class="line" href="classdl_1_1_discrete_range.html"> 20</a></span><span class="keyword">class </span><a class="code hl_class" href="classdl_1_1_discrete_range.html">DiscreteRange</a></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span>{</div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">using </span>Range = std::array<T, 2>;</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="keyword">public</span>:</div>
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<div class="foldopen" id="foldopen00024" data-start="{" data-end="}">
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"><a class="line" href="classdl_1_1_discrete_range.html#ae877841b318214a40f474dcd376f0c93"> 24</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classdl_1_1_discrete_range.html#ae877841b318214a40f474dcd376f0c93">Add</a>(<span class="keyword">const</span> <a class="code hl_enumvalue" href="namespacedl.html#a38a0162879cdbfbbe99ba16e7a170132ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a>& v)</div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> {</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">auto</span> iter = _data.begin();</div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keywordflow">while</span> (iter != _data.end())</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> {</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> Range& r = *iter;</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">if</span> (v < r[0])</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> {<span class="comment">// 小于区间左侧，必定不在所有区间内</span></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="keywordflow">if</span> (v + 1 == r[0])</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> {<span class="comment">// 刚好在边上</span></div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> --r[0];</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="comment">// 左移后不会连接到上一个区间，因为上一个区间已经判断</span></div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordflow">return</span>;</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="comment">// 添加新区间</span></div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> }</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keywordflow">if</span> (v > r[1])</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> {<span class="comment">// 大于区间右侧，必定不在当前区间内</span></div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordflow">if</span> (v == r[1] + 1)</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> {<span class="comment">// 刚好在边上</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">auto</span> iter_next = std::next(iter);</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keywordflow">if</span> (iter_next != _data.end() && (*iter_next)[0] == v + 1)</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> {</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="comment">// 右移后会连接到下一个区间</span></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> r[1] = (*iter_next)[1];</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> _data.erase(iter_next);</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> }</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> ++r[1];</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">return</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> ++iter;</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">continue</span>;</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 class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="comment">// 剩下条件在范围内</span></div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> }</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> _data.insert(iter, { v, v });</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> }</div>
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</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="foldopen" id="foldopen00065" data-start="{" data-end="}">
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="classdl_1_1_discrete_range.html#ae0244518fd2b673c362524039088f862"> 65</a></span> std::string <a class="code hl_function" href="classdl_1_1_discrete_range.html#ae0244518fd2b673c362524039088f862">ToString</a>()</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> {</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> std::string ret;</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span>& iter : _data)</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> {</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> ret += fmt::format(<span class="stringliteral">"[{}] "</span>, <a class="code hl_function" href="namespacedl.html#a6f4574f20ba2fefb1005b23a92fab372">to_string</a>(iter));</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> }</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">return</span> ret;</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> }</div>
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</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
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<div class="foldopen" id="foldopen00075" data-start="{" data-end="}">
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"><a class="line" href="classdl_1_1_discrete_range.html#ab77c5e80d2f3500beec19aadf0af87f9"> 75</a></span> std::optional<Range> <a class="code hl_function" href="classdl_1_1_discrete_range.html#ab77c5e80d2f3500beec19aadf0af87f9">GetTotalRange</a>()</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> {</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordflow">if</span> (_data.empty())</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordflow">return</span> {};</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordflow">if</span> (_data.size() == 1)</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">return</span> _data.front();</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">return</span> Range{ _data.front()[0], _data.back()[1] };</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> }</div>
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</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> std::list<Range> _data;</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span>};</div>
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</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span>}</div>
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<div class="ttc" id="aclassdl_1_1_discrete_range_html"><div class="ttname"><a href="classdl_1_1_discrete_range.html">dl::DiscreteRange</a></div><div class="ttdoc">离散范围表示</div><div class="ttdef"><b>定义</b> <a href="#l00020">dl_discrete_range.h:21</a></div></div>
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<div class="ttc" id="aclassdl_1_1_discrete_range_html_ab77c5e80d2f3500beec19aadf0af87f9"><div class="ttname"><a href="classdl_1_1_discrete_range.html#ab77c5e80d2f3500beec19aadf0af87f9">dl::DiscreteRange::GetTotalRange</a></div><div class="ttdeci">std::optional< Range > GetTotalRange()</div><div class="ttdef"><b>定义</b> <a href="#l00075">dl_discrete_range.h:75</a></div></div>
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<div class="ttc" id="aclassdl_1_1_discrete_range_html_ae0244518fd2b673c362524039088f862"><div class="ttname"><a href="classdl_1_1_discrete_range.html#ae0244518fd2b673c362524039088f862">dl::DiscreteRange::ToString</a></div><div class="ttdeci">std::string ToString()</div><div class="ttdef"><b>定义</b> <a href="#l00065">dl_discrete_range.h:65</a></div></div>
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<div class="ttc" id="aclassdl_1_1_discrete_range_html_ae877841b318214a40f474dcd376f0c93"><div class="ttname"><a href="classdl_1_1_discrete_range.html#ae877841b318214a40f474dcd376f0c93">dl::DiscreteRange::Add</a></div><div class="ttdeci">void Add(const T &v)</div><div class="ttdef"><b>定义</b> <a href="#l00024">dl_discrete_range.h:24</a></div></div>
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<div class="ttc" id="anamespacedl_html"><div class="ttname"><a href="namespacedl.html">dl</a></div><div class="ttdef"><b>定义</b> <a href="dl__array_8h_source.html#l00021">dl_array.h:22</a></div></div>
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<div class="ttc" id="anamespacedl_html_a38a0162879cdbfbbe99ba16e7a170132ab9ece18c950afbfa6b0fdbfa4ff731d3"><div class="ttname"><a href="namespacedl.html#a38a0162879cdbfbbe99ba16e7a170132ab9ece18c950afbfa6b0fdbfa4ff731d3">dl::KeyCode::T</a></div><div class="ttdeci">@ T</div><div class="ttdef"><b>定义</b> <a href="dl__input_8h_source.html#l00121">dl_input.h:121</a></div></div>
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<div class="ttc" id="anamespacedl_html_a6f4574f20ba2fefb1005b23a92fab372"><div class="ttname"><a href="namespacedl.html#a6f4574f20ba2fefb1005b23a92fab372">dl::to_string</a></div><div class="ttdeci">std::string to_string(T v)</div><div class="ttdoc">to_string包装</div><div class="ttdef"><b>定义</b> <a href="dl__string_8h_source.html#l00074">dl_string.h:74</a></div></div>
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