ont face="verdana" size="-2"><strong>${challenge.rating}</strong></font></nobr>
        </td>
        <td width="10">&nbsp;</td>
        <td valign="top"><font face="verdana" size="-1">题目的难度等级。</font></td>
    </tr>
    <tr>
        <td valign="top">
            <nobr><font face="verdana" size="-2"><strong>${challenge.problemsetName}</strong></font></nobr>
        </td>
        <td width="10">&nbsp;</td>
        <td valign="top"><font face="verdana" size="-1">题目集的名称，例如 acms