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</style></head><body><div class="sourceCode"><pre class="sourceCode"><code class="sourceCode"><span class="kw" title="KeywordTok">import java.util.Arrays;</span>
<span class="kw" title="KeywordTok">public</span> <span class="kw" title="KeywordTok">class</span> ABC{
<span class="kw" title="KeywordTok">private</span> <span class="dt" title="DataTypeTok">static</span> <span class="dt" title="DataTypeTok">void</span> <span class="fu" title="FunctionTok">swap</span>(<span class="dt" title="DataTypeTok">int</span> i, <span class="dt" title="DataTypeTok">int</span> j, Object<span class="kw" title="KeywordTok">... </span>arr){
Object tmp = arr[i];
arr[i] = arr[j];
arr[j] = tmp;
}
<span class="kw" title="KeywordTok">public</span> <span class="dt" title="DataTypeTok">static</span> <span class="dt" title="DataTypeTok">boolean</span> <span class="fu" title="FunctionTok">canMakeWord</span>(String word, String<span class="kw" title="KeywordTok">... </span>blocks) {
<span class="kw" title="KeywordTok">if</span>(word.<span class="fu" title="FunctionTok">length</span>() == <span class="dv" title="DecValTok">0</span>)
<span class="kw" title="KeywordTok">return</span> <span class="kw" title="KeywordTok">true</span>;
<span class="dt" title="DataTypeTok">char</span> c = Character.<span class="fu" title="FunctionTok">toUpperCase</span>(word.<span class="fu" title="FunctionTok">charAt</span>(<span class="dv" title="DecValTok">0</span>));
<span class="kw" title="KeywordTok">for</span>(<span class="dt" title="DataTypeTok">int</span> i = <span class="dv" title="DecValTok">0</span>; i < blocks.<span class="fu" title="FunctionTok">length</span>; i++) {
String b = blocks[i];
<span class="kw" title="KeywordTok">if</span>(Character.<span class="fu" title="FunctionTok">toUpperCase</span>(b.<span class="fu" title="FunctionTok">charAt</span>(<span class="dv" title="DecValTok">0</span>)) != c && Character.<span class="fu" title="FunctionTok">toUpperCase</span>(b.<span class="fu" title="FunctionTok">charAt</span>(<span class="dv" title="DecValTok">1</span>)) != c)
<span class="kw" title="KeywordTok">continue</span>;
<span class="fu" title="FunctionTok">swap</span>(<span class="dv" title="DecValTok">0</span>, i, blocks);
<span class="kw" title="KeywordTok">if</span>(<span class="fu" title="FunctionTok">canMakeWord</span>(word.<span class="fu" title="FunctionTok">substring</span>(<span class="dv" title="DecValTok">1</span>), Arrays.<span class="fu" title="FunctionTok">copyOfRange</span>(blocks, <span class="dv" title="DecValTok">1</span>, blocks.<span class="fu" title="FunctionTok">length</span>)))
<span class="kw" title="KeywordTok">return</span> <span class="kw" title="KeywordTok">true</span>;
<span class="fu" title="FunctionTok">swap</span>(<span class="dv" title="DecValTok">0</span>, i, blocks);
}
<span class="kw" title="KeywordTok">return</span> <span class="kw" title="KeywordTok">false</span>;
}
<span class="kw" title="KeywordTok">public</span> <span class="dt" title="DataTypeTok">static</span> <span class="dt" title="DataTypeTok">void</span> <span class="fu" title="FunctionTok">main</span>(String[] args){
String[] blocks = {<span class="st" title="StringTok">"BO"</span>, <span class="st" title="StringTok">"XK"</span>, <span class="st" title="StringTok">"DQ"</span>, <span class="st" title="StringTok">"CP"</span>, <span class="st" title="StringTok">"NA"</span>,
<span class="st" title="StringTok">"GT"</span>, <span class="st" title="StringTok">"RE"</span>, <span class="st" title="StringTok">"TG"</span>, <span class="st" title="StringTok">"QD"</span>, <span class="st" title="StringTok">"FS"</span>,
<span class="st" title="StringTok">"JW"</span>, <span class="st" title="StringTok">"HU"</span>, <span class="st" title="StringTok">"VI"</span>, <span class="st" title="StringTok">"AN"</span>, <span class="st" title="StringTok">"OB"</span>,
<span class="st" title="StringTok">"ER"</span>, <span class="st" title="StringTok">"FS"</span>, <span class="st" title="StringTok">"LY"</span>, <span class="st" title="StringTok">"PC"</span>, <span class="st" title="StringTok">"ZM"</span>};
System.<span class="fu" title="FunctionTok">out</span>.<span class="fu" title="FunctionTok">println</span>(<span class="st" title="StringTok">"</span><span class="ch" title="CharTok">\"\"</span><span class="st" title="StringTok">: "</span> + <span class="fu" title="FunctionTok">canMakeWord</span>(<span class="st" title="StringTok">""</span>, blocks));
System.<span class="fu" title="FunctionTok">out</span>.<span class="fu" title="FunctionTok">println</span>(<span class="st" title="StringTok">"A: "</span> + <span class="fu" title="FunctionTok">canMakeWord</span>(<span class="st" title="StringTok">"A"</span>, blocks));
System.<span class="fu" title="FunctionTok">out</span>.<span class="fu" title="FunctionTok">println</span>(<span class="st" title="StringTok">"BARK: "</span> + <span class="fu" title="FunctionTok">canMakeWord</span>(<span class="st" title="StringTok">"BARK"</span>, blocks));
System.<span class="fu" title="FunctionTok">out</span>.<span class="fu" title="FunctionTok">println</span>(<span class="st" title="StringTok">"book: "</span> + <span class="fu" title="FunctionTok">canMakeWord</span>(<span class="st" title="StringTok">"book"</span>, blocks));
System.<span class="fu" title="FunctionTok">out</span>.<span class="fu" title="FunctionTok">println</span>(<span class="st" title="StringTok">"treat: "</span> + <span class="fu" title="FunctionTok">canMakeWord</span>(<span class="st" title="StringTok">"treat"</span>, blocks));
System.<span class="fu" title="FunctionTok">out</span>.<span class="fu" title="FunctionTok">println</span>(<span class="st" title="StringTok">"COMMON: "</span> + <span class="fu" title="FunctionTok">canMakeWord</span>(<span class="st" title="StringTok">"COMMON"</span>, blocks));
System.<span class="fu" title="FunctionTok">out</span>.<span class="fu" title="FunctionTok">println</span>(<span class="st" title="StringTok">"SQuAd: "</span> + <span class="fu" title="FunctionTok">canMakeWord</span>(<span class="st" title="StringTok">"SQuAd"</span>, blocks));
System.<span class="fu" title="FunctionTok">out</span>.<span class="fu" title="FunctionTok">println</span>(<span class="st" title="StringTok">"CONFUSE: "</span> + <span class="fu" title="FunctionTok">canMakeWord</span>(<span class="st" title="StringTok">"CONFUSE"</span>, blocks));
}
}</code></pre></div></body>