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</style></head><body><div class="sourceCode"><pre class="sourceCode"><code class="sourceCode"><span class="pp" title="PreprocessorTok">#include </span><span class="im" title="ImportTok"><iostream></span>
<span class="pp" title="PreprocessorTok">#include </span><span class="im" title="ImportTok"><vector></span>
<span class="pp" title="PreprocessorTok">#include </span><span class="im" title="ImportTok"><string></span>
<span class="pp" title="PreprocessorTok">#include </span><span class="im" title="ImportTok"><set></span>
<span class="pp" title="PreprocessorTok">#include </span><span class="im" title="ImportTok"><cctype></span>
<span class="kw" title="KeywordTok">typedef</span> <span class="bu" title="BuiltInTok">std::</span>pair<<span class="dt" title="DataTypeTok">char</span>,<span class="dt" title="DataTypeTok">char</span>> <span class="dt" title="DataTypeTok">item_t</span>;
<span class="kw" title="KeywordTok">typedef</span> <span class="bu" title="BuiltInTok">std::</span>vector<<span class="dt" title="DataTypeTok">item_t</span>> <span class="dt" title="DataTypeTok">list_t</span>;
<span class="dt" title="DataTypeTok">bool</span> can_make_word(<span class="at" title="AttributeTok">const</span> <span class="bu" title="BuiltInTok">std::</span>string& w, <span class="at" title="AttributeTok">const</span> <span class="dt" title="DataTypeTok">list_t</span>& vals) {
<span class="bu" title="BuiltInTok">std::</span>set<<span class="dt" title="DataTypeTok">uint32_t</span>> used;
<span class="cf" title="ControlFlowTok">while</span> (used.size() < w.size()) {
<span class="at" title="AttributeTok">const</span> <span class="dt" title="DataTypeTok">char</span> c = toupper(w[used.size()]);
<span class="dt" title="DataTypeTok">uint32_t</span> x = used.size();
<span class="cf" title="ControlFlowTok">for</span> (<span class="dt" title="DataTypeTok">uint32_t</span> i = <span class="dv" title="DecValTok">0</span>, ii = vals.size(); i < ii; ++i) {
<span class="cf" title="ControlFlowTok">if</span> (used.find(i) == used.end()) {
<span class="cf" title="ControlFlowTok">if</span> (toupper(vals[i].first) == c || toupper(vals[i].second) == c) {
used.insert(i);
<span class="cf" title="ControlFlowTok">break</span>;
}
}
}
<span class="cf" title="ControlFlowTok">if</span> (x == used.size()) <span class="cf" title="ControlFlowTok">break</span>;
}
<span class="cf" title="ControlFlowTok">return</span> used.size() == w.size();
}
<span class="dt" title="DataTypeTok">int</span> main() {
<span class="dt" title="DataTypeTok">list_t</span> vals{ {<span class="st" title="StringTok">'B'</span>,<span class="st" title="StringTok">'O'</span>}, {<span class="st" title="StringTok">'X'</span>,<span class="st" title="StringTok">'K'</span>}, {<span class="st" title="StringTok">'D'</span>,<span class="st" title="StringTok">'Q'</span>}, {<span class="st" title="StringTok">'C'</span>,<span class="st" title="StringTok">'P'</span>}, {<span class="st" title="StringTok">'N'</span>,<span class="st" title="StringTok">'A'</span>}, {<span class="st" title="StringTok">'G'</span>,<span class="st" title="StringTok">'T'</span>}, {<span class="st" title="StringTok">'R'</span>,<span class="st" title="StringTok">'E'</span>}, {<span class="st" title="StringTok">'T'</span>,<span class="st" title="StringTok">'G'</span>}, {<span class="st" title="StringTok">'Q'</span>,<span class="st" title="StringTok">'D'</span>}, {<span class="st" title="StringTok">'F'</span>,<span class="st" title="StringTok">'S'</span>}, {<span class="st" title="StringTok">'J'</span>,<span class="st" title="StringTok">'W'</span>}, {<span class="st" title="StringTok">'H'</span>,<span class="st" title="StringTok">'U'</span>}, {<span class="st" title="StringTok">'V'</span>,<span class="st" title="StringTok">'I'</span>}, {<span class="st" title="StringTok">'A'</span>,<span class="st" title="StringTok">'N'</span>}, {<span class="st" title="StringTok">'O'</span>,<span class="st" title="StringTok">'B'</span>}, {<span class="st" title="StringTok">'E'</span>,<span class="st" title="StringTok">'R'</span>}, {<span class="st" title="StringTok">'F'</span>,<span class="st" title="StringTok">'S'</span>}, {<span class="st" title="StringTok">'L'</span>,<span class="st" title="StringTok">'Y'</span>}, {<span class="st" title="StringTok">'P'</span>,<span class="st" title="StringTok">'C'</span>}, {<span class="st" title="StringTok">'Z'</span>,<span class="st" title="StringTok">'M'</span>} };
<span class="bu" title="BuiltInTok">std::</span>vector<<span class="bu" title="BuiltInTok">std::</span>string> words{<span class="st" title="StringTok">"A"</span>,<span class="st" title="StringTok">"BARK"</span>,<span class="st" title="StringTok">"BOOK"</span>,<span class="st" title="StringTok">"TREAT"</span>,<span class="st" title="StringTok">"COMMON"</span>,<span class="st" title="StringTok">"SQUAD"</span>,<span class="st" title="StringTok">"CONFUSE"</span>};
<span class="cf" title="ControlFlowTok">for</span> (<span class="at" title="AttributeTok">const</span> <span class="bu" title="BuiltInTok">std::</span>string& w : words) {
<span class="bu" title="BuiltInTok">std::</span>cout << w << <span class="st" title="StringTok">": "</span> << <span class="bu" title="BuiltInTok">std::</span>boolalpha << can_make_word(w,vals) << <span class="st" title="StringTok">".</span><span class="sc" title="SpecialCharTok">\n</span><span class="st" title="StringTok">"</span>;
}
}</code></pre></div></body>