pan><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="p">)</span> <span class="p">{</span>
    <span class="k">return</span> <span class="nb">true</span><span class="p">;</span>
<span class="p">}</span>


</code></pre></div></div>

<div class="language-c++ good col-sm-6 highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="c1">// unify common into helper</span>
<span class="kt">bool</span> <span class="nf">isViable<