font-content"><div style="position: relative; overflow: hidden;"><p>给定n*m的矩形,每个点仅可能为&quot;_&quot;或&quot;X&quot;,选出一个最大的r*c的矩形,使得多个r*c的矩形能够(可以重叠的)覆盖全部&quot;X&quot;部分,不覆盖&quot;_&quot;部分<br />
</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;