# Join On

<table><thead><tr><th width="73" data-type="checkbox"> </th><th width="259">Problem</th><th width="74">Diff<select><option value="cc08b076c0814d37b8034010445340b0" label="Easy" color="blue"></option><option value="c6bb609d23f5455a934646d2dbde778d" label="Midium" color="blue"></option><option value="c675121f070c45b4b3eb24a9c1e25dd6" label="Hard" color="blue"></option></select></th><th width="124">Data</th><th width="110" data-type="rating" data-max="5"></th><th width="104">Flag</th></tr></thead><tbody><tr><td>true</td><td><a data-mention href="join-on/1587.-yin-hang-zhang-hu-gai-yao-ii">1587.-yin-hang-zhang-hu-gai-yao-ii</a></td><td><span data-option="cc08b076c0814d37b8034010445340b0">Easy</span></td><td>2022/9/14</td><td>4</td><td></td></tr><tr><td>true</td><td><a data-mention href="join-on/1581.-jin-dian-que-wei-jin-hang-guo-jiao-yi-de-gu-ke">1581.-jin-dian-que-wei-jin-hang-guo-jiao-yi-de-gu-ke</a></td><td><span data-option="cc08b076c0814d37b8034010445340b0">Easy</span></td><td>2022/9/14</td><td>4</td><td></td></tr><tr><td>true</td><td><a data-mention href="join-on/175.-zu-he-liang-ge-biao">175.-zu-he-liang-ge-biao</a></td><td><span data-option="cc08b076c0814d37b8034010445340b0">Easy</span></td><td>2022/9/14</td><td>3</td><td></td></tr></tbody></table>