s="o">.</span><span class="n">_minPS</span><span class="p">)</span>

        <span class="n">cands</span> <span class="o">=</span> <span class="p">[]</span>
        <span class="n">nitems</span> <span class="o">=</span> <span class="p">{}</span>

        <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">items</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
            <span clas