tent"><div style="position: relative; overflow: hidden;"><div>从前有张图。图里n个顶点两两之间有N^2种最小割。告诉你这N^2个最小割。还原出这张图。</div>
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<p></p></div></div></div></div><div class="row"><div class="column"><h4 class="ui top attached block header">输入格式</h4><div class="ui bottom attached segment font-content"><div style="position: relative; overflow: hidden;"><div class=content><div>第一行一个正整数n，表示图的顶点数。</div