div></code></pre></div><h4>样例输出</h4><div class="ui existing segment"><pre style="margin-top:0; margin-bottom:0;"><code class="lang-plain">
			<div class=content><span class=sampledata>12  <br />
【样例解释】<br />
12个解分别为：(0,3) ; (3,0) ; (0,1,2) ; (1,2,0) ; (2,0,1);(0,3,0,3) ; <br />
(3,0,3,0) ; (0,1,2,0,3) ; (0,3,0,1,2) ; (1,2,0,3,0) ; (2,0,3,0,1) ; (3,0,1,2,0)。 </span></div></code></pre></div></div></div></div></div><div class="row"><div class="column"><h4 class="ui top atta