��示结果</p></div></div></div></div></div><div class="row"><div class="column"><h4 class="ui top attached block header">样例</h4><div class="ui bottom attached segment font-content"><div style="position: relative; overflow: hidden;"><h4>样例输入</h4><div class="ui existing segment"><pre style="margin-top:0; margin-bottom:0;"><code class="lang-plain">
			<div class=content><span class=sampledata>5 5<br />
1 2<br />
1 3<br />
2 4<br />
2 5<br />
Q 2<br />
C 2<br />
Q 2<br />
Q 5<br />
Q 3</s