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<div class="headertitle"><div class="title">abbreviation.cpp</div></div>
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<a href="../../d7/d73/abbreviation_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>
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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="preprocessor">#include <cassert></span> </div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include <cstdint></span> </div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include <iostream></span> </div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include <string></span> </div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include <vector></span> </div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../dd/d24/namespacedynamic__programming.html">dynamic_programming</a> {</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../d0/df8/namespaceabbreviation.html">abbreviation</a> {</div>
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<div class="foldopen" id="foldopen00059" data-start="{" data-end="}">
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="../../d7/d73/abbreviation_8cpp.html#add60b8858720bf217df22d992d0fefaa"> 59</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#add60b8858720bf217df22d992d0fefaa">abbreviation_recursion</a>(std::vector<std::vector<bool>> *memo,</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> std::vector<std::vector<bool>> *visited,</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">const</span> std::string &str, <span class="keyword">const</span> std::string &result,</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> uint32_t str_idx = 0, uint32_t result_idx = 0) {</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordtype">bool</span> ans = memo->at(str_idx).at(result_idx);</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keywordflow">if</span> (str_idx == str.size() && result_idx == result.size()) {</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (str_idx == str.size() && result_idx != result.size()) {</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// result `t` is not converted, return false</span></div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!visited->at(str_idx).at(result_idx)) {</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">if</span> (str[str_idx] == result[result_idx]) {</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> ans = <a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#add60b8858720bf217df22d992d0fefaa">abbreviation_recursion</a>(memo, visited, str, result,</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> str_idx + 1, result_idx + 1);</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (str[str_idx] - 32 == result[result_idx]) {</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> ans = <a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#add60b8858720bf217df22d992d0fefaa">abbreviation_recursion</a>(memo, visited, str, result,</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> str_idx + 1, result_idx + 1) ||</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#add60b8858720bf217df22d992d0fefaa">abbreviation_recursion</a>(memo, visited, str, result,</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> str_idx + 1, result_idx);</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="comment">// if `str[i]` is uppercase, then cannot be converted, return</span></div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="comment">// `false`</span></div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// else `str[i]` is lowercase, only option is to discard this</span></div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// character</span></div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">if</span> (str[str_idx] >= <span class="charliteral">'A'</span> && str[str_idx] <= <span class="charliteral">'Z'</span>) {</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> ans = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> ans = <a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#add60b8858720bf217df22d992d0fefaa">abbreviation_recursion</a>(memo, visited, str, result,</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> str_idx + 1, result_idx);</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> }</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> }</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> }</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> (*memo)[str_idx][result_idx] = ans;</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> (*visited)[str_idx][result_idx] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">return</span> (*memo)[str_idx][result_idx];</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span>}</div>
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</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span></div>
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<div class="foldopen" id="foldopen00119" data-start="{" data-end="}">
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"><a class="line" href="../../d7/d73/abbreviation_8cpp.html#af53b2f647bee9c5b75ef8dd9ef685dc8"> 119</a></span><span class="keywordtype">bool</span> <a class="code hl_namespace" href="../../d0/df8/namespaceabbreviation.html">abbreviation</a>(<span class="keyword">const</span> std::string &str, <span class="keyword">const</span> std::string &result) {</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> std::vector<std::vector<bool>> memo(</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> str.size() + 1, std::vector<bool>(result.size() + 1, <span class="keyword">false</span>));</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">for</span> (uint32_t i = 0; i <= str.size(); ++i) {</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> memo[i][0] = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> }</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">for</span> (uint32_t i = 1; i <= result.size(); ++i) {</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> memo[0][i] = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> }</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keywordflow">for</span> (uint32_t i = 1; i <= str.size(); ++i) {</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordflow">for</span> (uint32_t j = 1; j <= result.size(); ++j) {</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">if</span> (str[i - 1] == result[j - 1]) {</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> memo[i][j] = memo[i - 1][j - 1];</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (str[i - 1] - 32 == result[j - 1]) {</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> memo[i][j] = (memo[i - 1][j - 1] || memo[i - 1][j]);</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">if</span> (str[i - 1] >= <span class="charliteral">'A'</span> && str[i - 1] <= <span class="charliteral">'Z'</span>) {</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> memo[i][j] = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> memo[i][j] = memo[i - 1][j];</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> }</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> }</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> }</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> }</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordflow">return</span> memo.back().back();</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span>}</div>
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</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span>} <span class="comment">// namespace abbreviation</span></div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span>} <span class="comment">// namespace dynamic_programming</span></div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span></div>
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<div class="foldopen" id="foldopen00153" data-start="{" data-end="}">
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"><a class="line" href="../../d7/d73/abbreviation_8cpp.html#aa8dca7b867074164d5f45b0f3851269d"> 153</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#aa8dca7b867074164d5f45b0f3851269d">test</a>() {</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> std::string s = <span class="stringliteral">"daBcd"</span>, t = <span class="stringliteral">"ABC"</span>;</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> std::vector<std::vector<bool>> memo(s.size() + 1,</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> std::vector<bool>(t.size() + 1, <span class="keyword">false</span>)),</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> visited(s.size() + 1, std::vector<bool>(t.size() + 1, <span class="keyword">false</span>));</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> assert(<a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#add60b8858720bf217df22d992d0fefaa">dynamic_programming::abbreviation::abbreviation_recursion</a>(</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> &memo, &visited, s, t) == <span class="keyword">true</span>);</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> assert(<a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#af53b2f647bee9c5b75ef8dd9ef685dc8">dynamic_programming::abbreviation::abbreviation</a>(s, t) == <span class="keyword">true</span>);</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> s = <span class="stringliteral">"XXVVnDEFYgYeMXzWINQYHAQKKOZEYgSRCzLZAmUYGUGILjMDET"</span>;</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> t = <span class="stringliteral">"XXVVDEFYYMXWINQYHAQKKOZEYSRCLZAUYGUGILMDETQVWU"</span>;</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> memo = std::vector<std::vector<bool>>(</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> s.size() + 1, std::vector<bool>(t.size() + 1, <span class="keyword">false</span>));</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> </div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> visited = std::vector<std::vector<bool>>(</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> s.size() + 1, std::vector<bool>(t.size() + 1, <span class="keyword">false</span>));</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> </div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> assert(<a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#add60b8858720bf217df22d992d0fefaa">dynamic_programming::abbreviation::abbreviation_recursion</a>(</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> &memo, &visited, s, t) == <span class="keyword">false</span>);</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> assert(<a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#af53b2f647bee9c5b75ef8dd9ef685dc8">dynamic_programming::abbreviation::abbreviation</a>(s, t) == <span class="keyword">false</span>);</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> </div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> s = <span class="stringliteral">"DRFNLZZVHLPZWIupjwdmqafmgkg"</span>;</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> t = <span class="stringliteral">"DRFNLZZVHLPZWI"</span>;</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> </div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> memo = std::vector<std::vector<bool>>(</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> s.size() + 1, std::vector<bool>(t.size() + 1, <span class="keyword">false</span>));</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> </div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> visited = std::vector<std::vector<bool>>(</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> s.size() + 1, std::vector<bool>(t.size() + 1, <span class="keyword">false</span>));</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> </div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> assert(<a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#add60b8858720bf217df22d992d0fefaa">dynamic_programming::abbreviation::abbreviation_recursion</a>(</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> &memo, &visited, s, t) == <span class="keyword">true</span>);</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> assert(<a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#af53b2f647bee9c5b75ef8dd9ef685dc8">dynamic_programming::abbreviation::abbreviation</a>(s, t) == <span class="keyword">true</span>);</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span>}</div>
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</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span></div>
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<div class="foldopen" id="foldopen00192" data-start="{" data-end="}">
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"><a class="line" href="../../d7/d73/abbreviation_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4"> 192</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <a class="code hl_function" href="../../d7/d73/abbreviation_8cpp.html#aa8dca7b867074164d5f45b0f3851269d">test</a>(); <span class="comment">// run self-test implementations</span></div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span>}</div>
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</div>
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<div class="ttc" id="aabbreviation_8cpp_html_aa8dca7b867074164d5f45b0f3851269d"><div class="ttname"><a href="../../d7/d73/abbreviation_8cpp.html#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="#l00153">abbreviation.cpp:153</a></div></div>
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<div class="ttc" id="aabbreviation_8cpp_html_add60b8858720bf217df22d992d0fefaa"><div class="ttname"><a href="../../d7/d73/abbreviation_8cpp.html#add60b8858720bf217df22d992d0fefaa">dynamic_programming::abbreviation::abbreviation_recursion</a></div><div class="ttdeci">bool abbreviation_recursion(std::vector< std::vector< bool > > *memo, std::vector< std::vector< bool > > *visited, const std::string &str, const std::string &result, uint32_t str_idx=0, uint32_t result_idx=0)</div><div class="ttdoc">Recursive Dynamic Programming function.</div><div class="ttdef"><b>Definition</b> <a href="#l00059">abbreviation.cpp:59</a></div></div>
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<div class="ttc" id="aabbreviation_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="../../d7/d73/abbreviation_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdoc">Main function.</div><div class="ttdef"><b>Definition</b> <a href="#l00192">abbreviation.cpp:192</a></div></div>
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<div class="ttc" id="aabbreviation_8cpp_html_af53b2f647bee9c5b75ef8dd9ef685dc8"><div class="ttname"><a href="../../d7/d73/abbreviation_8cpp.html#af53b2f647bee9c5b75ef8dd9ef685dc8">dynamic_programming::abbreviation::abbreviation</a></div><div class="ttdeci">bool abbreviation(const std::string &str, const std::string &result)</div><div class="ttdoc">Iterative Dynamic Programming function.</div><div class="ttdef"><b>Definition</b> <a href="#l00119">abbreviation.cpp:119</a></div></div>
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<div class="ttc" id="anamespaceabbreviation_html"><div class="ttname"><a href="../../d0/df8/namespaceabbreviation.html">abbreviation</a></div><div class="ttdoc">Functions for Abbreviation implementation.</div></div>
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<div class="ttc" id="anamespacedynamic__programming_html"><div class="ttname"><a href="../../dd/d24/namespacedynamic__programming.html">dynamic_programming</a></div><div class="ttdoc">Dynamic Programming algorithms.</div></div>
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