 existing segment"><pre style="margin-top:0; margin-bottom:0;"><code class="lang-plain">
			<div class=content><span class=sampledata>12 4<br />
0 2 3 4<br />
0 0 0 1<br />
1 0 0 0<br />
5 1 0 0<br />
6 0 4 0<br />
0 7 5 0<br />
8 0 9 6<br />
10 11 7 12<br />
7 0 0 0<br />
0 0 8 0<br />
0 0 0 8<br />
0 8 0 0<br />
<br />
</span></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=conte