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highlighting-kate-0.5.14: tests/abc.haskell.html

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</style></head><body><div class="sourceCode"><pre class="sourceCode"><code class="sourceCode"><span class="kw" title="KeywordTok">import </span><span class="dt" title="DataTypeTok">Data.List</span> (delete)
<span class="kw" title="KeywordTok">import </span><span class="dt" title="DataTypeTok">Data.Char</span> (toUpper)

<span class="co" title="CommentTok">-- returns list of all solutions, each solution being a list of blocks</span>
<span class="ot" title="OtherTok">abc ::</span> (<span class="dt" title="DataTypeTok">Eq</span> a) <span class="ot" title="OtherTok">=&gt;</span> [[a]] <span class="ot" title="OtherTok">-&gt;</span> [a] <span class="ot" title="OtherTok">-&gt;</span> [[[a]]]
abc _ [] <span class="fu" title="FunctionTok">=</span> [[]]
abc blocks (c<span class="fu" title="FunctionTok">:</span>cs) <span class="fu" title="FunctionTok">=</span> [b<span class="fu" title="FunctionTok">:</span>ans <span class="fu" title="FunctionTok">|</span> b <span class="ot" title="OtherTok">&lt;-</span> blocks, c <span class="ot" title="OtherTok">`elem`</span> b,
                             ans <span class="ot" title="OtherTok">&lt;-</span> abc (delete b blocks) cs]

blocks <span class="fu" title="FunctionTok">=</span> [<span class="st" title="StringTok">&quot;BO&quot;</span>, <span class="st" title="StringTok">&quot;XK&quot;</span>, <span class="st" title="StringTok">&quot;DQ&quot;</span>, <span class="st" title="StringTok">&quot;CP&quot;</span>, <span class="st" title="StringTok">&quot;NA&quot;</span>, <span class="st" title="StringTok">&quot;GT&quot;</span>, <span class="st" title="StringTok">&quot;RE&quot;</span>, <span class="st" title="StringTok">&quot;TG&quot;</span>, <span class="st" title="StringTok">&quot;QD&quot;</span>, <span class="st" title="StringTok">&quot;FS&quot;</span>,
          <span class="st" title="StringTok">&quot;JW&quot;</span>, <span class="st" title="StringTok">&quot;HU&quot;</span>, <span class="st" title="StringTok">&quot;VI&quot;</span>, <span class="st" title="StringTok">&quot;AN&quot;</span>, <span class="st" title="StringTok">&quot;OB&quot;</span>, <span class="st" title="StringTok">&quot;ER&quot;</span>, <span class="st" title="StringTok">&quot;FS&quot;</span>, <span class="st" title="StringTok">&quot;LY&quot;</span>, <span class="st" title="StringTok">&quot;PC&quot;</span>, <span class="st" title="StringTok">&quot;ZM&quot;</span>]

<span class="ot" title="OtherTok">main ::</span> <span class="dt" title="DataTypeTok">IO</span> ()
main <span class="fu" title="FunctionTok">=</span> mapM_ (\w <span class="ot" title="OtherTok">-&gt;</span> print (w, not <span class="fu" title="FunctionTok">.</span> null <span class="fu" title="FunctionTok">$</span> abc blocks (map toUpper w)))
         [<span class="st" title="StringTok">&quot;&quot;</span>, <span class="st" title="StringTok">&quot;A&quot;</span>, <span class="st" title="StringTok">&quot;BARK&quot;</span>, <span class="st" title="StringTok">&quot;BoOK&quot;</span>, <span class="st" title="StringTok">&quot;TrEAT&quot;</span>, <span class="st" title="StringTok">&quot;COmMoN&quot;</span>, <span class="st" title="StringTok">&quot;SQUAD&quot;</span>, <span class="st" title="StringTok">&quot;conFUsE&quot;</span>]</code></pre></div></body>